OOFEM  2.4
OOFEM.org - Object Oriented Finite Element Solver
oofem::Tr21Stokes Class Reference

Triangular Taylor-Hood element for Stokes flow. More...

#include <tr21stokes.h>

+ Inheritance diagram for oofem::Tr21Stokes:
+ Collaboration diagram for oofem::Tr21Stokes:

Public Member Functions

 Tr21Stokes (int n, Domain *d)
 
virtual ~Tr21Stokes ()
 
virtual double computeVolumeAround (GaussPoint *gp)
 Returns volume related to given integration point. More...
 
virtual void computeGaussPoints ()
 Initializes the array of integration rules member variable. More...
 
virtual void giveCharacteristicVector (FloatArray &answer, CharType type, ValueModeType mode, TimeStep *tStep)
 Computes characteristic vector of receiver of requested type in given time step. More...
 
virtual void giveCharacteristicMatrix (FloatMatrix &answer, CharType type, TimeStep *tStep)
 Computes characteristic matrix of receiver of requested type in given time step. More...
 
void computeInternalForcesVector (FloatArray &answer, TimeStep *tStep)
 
void computeStiffnessMatrix (FloatMatrix &answer, MatResponseMode mode, TimeStep *tStep)
 
void computeExternalForcesVector (FloatArray &answer, TimeStep *tStep)
 
virtual void computeLoadVector (FloatArray &answer, BodyLoad *load, CharType type, ValueModeType mode, TimeStep *tStep)
 Computes the contribution of the given body load (volumetric). More...
 
virtual void computeBoundarySurfaceLoadVector (FloatArray &answer, BoundaryLoad *load, int boundary, CharType type, ValueModeType mode, TimeStep *tStep, bool global=true)
 Computes the contribution of the given load at the given boundary surface in global coordinate system. More...
 
virtual const char * giveClassName () const
 
virtual const char * giveInputRecordName () const
 
virtual MaterialMode giveMaterialMode ()
 Returns material mode for receiver integration points. More...
 
virtual int computeNumberOfDofs ()
 Computes or simply returns total number of element's local DOFs. More...
 
virtual FEInterpolationgiveInterpolation () const
 
virtual FEInterpolationgiveInterpolation (DofIDItem id) const
 Returns the interpolation for the specific dof id. More...
 
virtual void giveDofManDofIDMask (int inode, IntArray &answer) const
 Gives the dof ID mask for the element. More...
 
virtual void updateYourself (TimeStep *tStep)
 Updates element state after equilibrium in time step has been reached. More...
 
virtual InterfacegiveInterface (InterfaceType it)
 Interface requesting service. More...
 
virtual void computeField (ValueModeType u, TimeStep *tStep, const FloatArray &coords, FloatArray &answer)
 Computes the unknown vector interpolated at the specified local coordinates. More...
 
virtual void NodalAveragingRecoveryMI_computeNodalValue (FloatArray &answer, int node, InternalStateType type, TimeStep *tStep)
 Computes the element value in given node. More...
 
- Public Member Functions inherited from oofem::FMElement
 FMElement (int n, Domain *aDomain)
 
virtual ~FMElement ()
 
virtual void updateStabilizationCoeffs (TimeStep *tStep)
 Updates the stabilization coefficients used for CBS and SUPG algorithms. More...
 
virtual void computeVectorOfVelocities (ValueModeType mode, TimeStep *tStep, FloatArray &velocities)
 
virtual void computeVectorOfPressures (ValueModeType mode, TimeStep *tStep, FloatArray &pressures)
 
- Public Member Functions inherited from oofem::Element
 Element (int n, Domain *aDomain)
 Constructor. More...
 
 Element (const Element &src)=delete
 
Elementoperator= (const Element &src)=delete
 
virtual ~Element ()
 Virtual destructor. More...
 
virtual void drawYourself (oofegGraphicContext &gc, TimeStep *tStep)
 
virtual void drawAnnotation (oofegGraphicContext &gc, TimeStep *tStep)
 
virtual void drawRawGeometry (oofegGraphicContext &gc, TimeStep *tStep)
 
virtual void drawDeformedGeometry (oofegGraphicContext &gc, TimeStep *tStep, UnknownType)
 
virtual void drawScalar (oofegGraphicContext &gc, TimeStep *tStep)
 
virtual void drawSpecial (oofegGraphicContext &gc, TimeStep *tStep)
 
virtual void giveLocalIntVarMaxMin (oofegGraphicContext &gc, TimeStep *tStep, double &emin, double &emax)
 
virtual int giveInternalStateAtNode (FloatArray &answer, InternalStateType type, InternalStateMode mode, int node, TimeStep *tStep)
 Returns internal state variable (like stress,strain) at node of element in Reduced form, the way how is obtained is dependent on InternalValueType. More...
 
virtual int giveInternalStateAtSide (FloatArray &answer, InternalStateType type, InternalStateMode mode, int side, TimeStep *tStep)
 Returns internal state variable (like stress,strain) at side of element in Reduced form If side is possessing DOFs, otherwise recover techniques will not work due to absence of side-shape functions. More...
 
virtual void showSparseMtrxStructure (CharType mtrx, oofegGraphicContext &gc, TimeStep *tStep)
 Shows sparse structure. More...
 
virtual void showExtendedSparseMtrxStructure (CharType mtrx, oofegGraphicContext &gc, TimeStep *tStep)
 Shows extended sparse structure (for example, due to nonlocal interactions for tangent stiffness) More...
 
int giveLabel () const
 
int giveGlobalNumber () const
 
void setGlobalNumber (int num)
 Sets receiver globally unique number. More...
 
elementParallelMode giveParallelMode () const
 Return elementParallelMode of receiver. More...
 
void setParallelMode (elementParallelMode _mode)
 Sets parallel mode of element. More...
 
virtual elementParallelMode giveKnotSpanParallelMode (int) const
 Returns the parallel mode for particular knot span of the receiver. More...
 
int packUnknowns (DataStream &buff, TimeStep *tStep)
 Pack all necessary data of element (according to its parallel_mode) integration points into given communication buffer. More...
 
int unpackAndUpdateUnknowns (DataStream &buff, TimeStep *tStep)
 Unpack and updates all necessary data of element (according to its parallel_mode) integration points into given communication buffer. More...
 
int estimatePackSize (DataStream &buff)
 Estimates the necessary pack size to hold all packed data of receiver. More...
 
const IntArraygivePartitionList () const
 Returns partition list of receiver. More...
 
void setPartitionList (IntArray &pl)
 Sets partition list of receiver. More...
 
virtual double predictRelativeComputationalCost ()
 Returns the weight representing relative computational cost of receiver The reference element is triangular plane stress element with linear approximation, single integration point and linear isotropic material. More...
 
virtual double giveRelativeSelfComputationalCost ()
 Returns the weight representing relative computational cost of receiver The reference element is triangular plane stress element. More...
 
virtual double predictRelativeRedistributionCost ()
 Returns the relative redistribution cost of the receiver. More...
 
IntArraygiveBodyLoadArray ()
 Returns array containing load numbers of loads acting on element. More...
 
IntArraygiveBoundaryLoadArray ()
 Returns array containing load numbers of boundary loads acting on element. More...
 
virtual IRResultType initializeFrom (InputRecord *ir)
 Initializes receiver according to object description stored in input record. More...
 
virtual void giveInputRecord (DynamicInputRecord &input)
 Setups the input record string of receiver. More...
 
virtual contextIOResultType saveContext (DataStream &stream, ContextMode mode, void *obj=NULL)
 Stores receiver state to output stream. More...
 
virtual contextIOResultType restoreContext (DataStream &stream, ContextMode mode, void *obj=NULL)
 Restores the receiver state previously written in stream. More...
 
virtual void printOutputAt (FILE *file, TimeStep *tStep)
 Prints output of receiver to stream, for given time step. More...
 
void giveLocationArray (IntArray &locationArray, const UnknownNumberingScheme &s, IntArray *dofIds=NULL) const
 Returns the location array (array of code numbers) of receiver for given numbering scheme. More...
 
void giveLocationArray (IntArray &locationArray, const IntArray &dofIDMask, const UnknownNumberingScheme &s, IntArray *dofIds=NULL) const
 
virtual void giveBoundaryLocationArray (IntArray &locationArray, const IntArray &bNodes, const UnknownNumberingScheme &s, IntArray *dofIds=NULL)
 Returns the location array for the boundary of the element. More...
 
virtual void giveBoundaryLocationArray (IntArray &locationArray, const IntArray &bNodes, const IntArray &dofIDMask, const UnknownNumberingScheme &s, IntArray *dofIds=NULL)
 
virtual int giveNumberOfDofs ()
 
virtual int giveNumberOfInternalDofManagers () const
 
virtual DofManagergiveInternalDofManager (int i) const
 Returns i-th internal element dof manager of the receiver. More...
 
virtual double giveCharacteristicValue (CharType type, TimeStep *tStep)
 Computes characteristic value of receiver of requested type in given time step. More...
 
virtual void computeTangentFromSurfaceLoad (FloatMatrix &answer, SurfaceLoad *load, int boundary, MatResponseMode rmode, TimeStep *tStep)
 Computes the tangent contribution of the given load at the given boundary. More...
 
virtual void computeTangentFromEdgeLoad (FloatMatrix &answer, EdgeLoad *load, int boundary, MatResponseMode rmode, TimeStep *tStep)
 Computes the tangent contribution of the given load at the given boundary. More...
 
virtual void computeBoundaryEdgeLoadVector (FloatArray &answer, BoundaryLoad *load, int edge, CharType type, ValueModeType mode, TimeStep *tStep, bool global=true)
 Computes the contribution of the given load at the given boundary edge. More...
 
const IntArraygiveBodyLoadList () const
 Returns receiver list of bodyloads. More...
 
const IntArraygiveBoundaryLoadList () const
 Returns receiver list of boundary loads. More...
 
void computeVectorOf (ValueModeType u, TimeStep *tStep, FloatArray &answer)
 Returns local vector of unknowns. More...
 
void computeVectorOf (const IntArray &dofIDMask, ValueModeType u, TimeStep *tStep, FloatArray &answer, bool padding=false)
 
void computeBoundaryVectorOf (const IntArray &bNodes, const IntArray &dofIDMask, ValueModeType u, TimeStep *tStep, FloatArray &answer, bool padding=false)
 Boundary version of computeVectorOf. More...
 
void computeVectorOf (PrimaryField &field, const IntArray &dofIDMask, ValueModeType u, TimeStep *tStep, FloatArray &answer, bool padding=false)
 Returns local vector of unknowns. More...
 
void computeVectorOfPrescribed (ValueModeType u, TimeStep *tStep, FloatArray &answer)
 Returns local vector of prescribed unknowns. More...
 
void computeVectorOfPrescribed (const IntArray &dofIDMask, ValueModeType type, TimeStep *tStep, FloatArray &answer)
 Returns local vector of prescribed unknowns. More...
 
virtual int computeNumberOfGlobalDofs ()
 Computes the total number of element's global dofs. More...
 
int computeNumberOfPrimaryMasterDofs ()
 Computes the total number of element's primary master DOFs. More...
 
virtual bool computeGtoLRotationMatrix (FloatMatrix &answer)
 Returns transformation matrix from global c.s. More...
 
virtual bool giveRotationMatrix (FloatMatrix &answer)
 Transformation matrices updates rotation matrix between element-local and primary DOFs, taking into account nodal c.s. More...
 
virtual bool computeDofTransformationMatrix (FloatMatrix &answer, const IntArray &nodes, bool includeInternal)
 Returns transformation matrix for DOFs from global coordinate system to local coordinate system in nodes. More...
 
virtual void giveInternalDofManDofIDMask (int inode, IntArray &answer) const
 Returns internal dofmanager dof mask for node. More...
 
virtual void giveElementDofIDMask (IntArray &answer) const
 Returns element dof mask for node. More...
 
virtual double computeVolumeAreaOrLength ()
 Computes the volume, area or length of the element depending on its spatial dimension. More...
 
double computeMeanSize ()
 Computes the size of the element defined as its length. More...
 
virtual double computeVolume ()
 Computes the volume. More...
 
virtual double computeArea ()
 Computes the area (zero for all but 2d geometries). More...
 
virtual double computeLength ()
 Computes the length (zero for all but 1D geometries) More...
 
virtual void giveBoundaryEdgeNodes (IntArray &bNodes, int boundary)
 Returns list of receiver boundary nodes for given edge. More...
 
virtual void giveBoundarySurfaceNodes (IntArray &bNodes, int boundary)
 Returns list of receiver boundary nodes for given surface. More...
 
virtual IntegrationRulegiveBoundaryEdgeIntegrationRule (int order, int boundary)
 Returns boundary edge integration rule. More...
 
virtual IntegrationRulegiveBoundarySurfaceIntegrationRule (int order, int boundary)
 Returns boundary surface integration rule. More...
 
int giveDofManagerNumber (int i) const
 Translates local to global indices for dof managers. More...
 
const IntArraygiveDofManArray () const
 
void addDofManager (DofManager *dMan)
 
DofManagergiveDofManager (int i) const
 
NodegiveNode (int i) const
 Returns reference to the i-th node of element. More...
 
virtual ElementSidegiveSide (int i) const
 Returns reference to the i-th side of element. More...
 
virtual MaterialgiveMaterial ()
 
int giveMaterialNumber () const
 
CrossSectiongiveCrossSection ()
 
void setMaterial (int matIndx)
 Sets the material of receiver. More...
 
virtual void setCrossSection (int csIndx)
 Sets the cross section model of receiver. More...
 
virtual int giveNumberOfDofManagers () const
 
virtual int giveNumberOfNodes () const
 Returns number of nodes of receiver. More...
 
void setDofManagers (const IntArray &dmans)
 Sets receiver dofManagers. More...
 
void setBodyLoads (const IntArray &bodyLoads)
 Sets receiver bodyLoadArray. More...
 
void setIntegrationRules (std::vector< std::unique_ptr< IntegrationRule > > irlist)
 Sets integration rules. More...
 
virtual integrationDomain giveIntegrationDomain () const
 Returns integration domain for receiver, used to initialize integration point over receiver volume. More...
 
virtual int giveIntegrationRuleLocalCodeNumbers (IntArray &answer, IntegrationRule &ie)
 Assembles the code numbers of given integration element (sub-patch) This is done by obtaining list of nonzero shape functions and by collecting the code numbers of nodes corresponding to these shape functions. More...
 
int giveRegionNumber ()
 
virtual void postInitialize ()
 Performs post initialization steps. More...
 
virtual void updateInternalState (TimeStep *tStep)
 Updates element state after equilibrium in time step has been reached. More...
 
virtual void initializeYourself (TimeStep *timeStepWhenICApply)
 Initialization according to state given by initial conditions. More...
 
virtual int checkConsistency ()
 Performs consistency check. More...
 
virtual bool isActivated (TimeStep *tStep)
 
virtual bool isCast (TimeStep *tStep)
 
virtual void initForNewStep ()
 Initializes receivers state to new time step. More...
 
virtual Element_Geometry_Type giveGeometryType () const
 Returns the element geometry type. More...
 
virtual int giveSpatialDimension ()
 Returns the element spatial dimension (1, 2, or 3). More...
 
virtual int giveNumberOfBoundarySides ()
 
virtual int giveDefaultIntegrationRule () const
 Returns id of default integration rule. More...
 
virtual IntegrationRulegiveDefaultIntegrationRulePtr ()
 Access method for default integration rule. More...
 
int giveNumberOfIntegrationRules ()
 
virtual IntegrationRulegiveIntegrationRule (int i)
 
std::vector< std::unique_ptr< IntegrationRule > > & giveIntegrationRulesArray ()
 
virtual int testElementExtension (ElementExtension ext)
 Tests if the element implements required extension. More...
 
virtual int giveIPValue (FloatArray &answer, GaussPoint *gp, InternalStateType type, TimeStep *tStep)
 Returns the integration point corresponding value in full form. More...
 
int giveGlobalIPValue (FloatArray &answer, GaussPoint *gp, InternalStateType type, TimeStep *tStep)
 
virtual double giveLengthInDir (const FloatArray &normalToCrackPlane)
 Default implementation returns length of element projection into specified direction. More...
 
virtual double giveCharacteristicLength (const FloatArray &normalToCrackPlane)
 Returns the size of element in the given direction, in some cases adjusted (e.g. More...
 
double giveCharacteristicLengthForPlaneElements (const FloatArray &normalToCrackPlane)
 Returns the size of element in the given direction if the direction is in the XY plane, otherwise gives the mean size defined as the square root of the element area. More...
 
double giveCharacteristicLengthForAxisymmElements (const FloatArray &normalToCrackPlane)
 Returns the size of an axisymmetric element in the given direction if the direction is in the XY plane, otherwise gives the mean distance vrom the symmetry axis multiplied by pi. More...
 
virtual double giveCharacteristicSize (GaussPoint *gp, FloatArray &normalToCrackPlane, ElementCharSizeMethod method)
 Returns characteristic element size for a given integration point and given direction. More...
 
virtual double giveParentElSize () const
 Returns the size (length, area or volume depending on element type) of the parent element. More...
 
virtual void updateBeforeNonlocalAverage (TimeStep *tStep)
 Updates internal element state (in all integration points of receiver) before nonlocal averaging takes place. More...
 
virtual int computeGlobalCoordinates (FloatArray &answer, const FloatArray &lcoords)
 Computes the global coordinates from given element's local coordinates. More...
 
virtual bool computeLocalCoordinates (FloatArray &answer, const FloatArray &gcoords)
 Computes the element local coordinates from given global coordinates. More...
 
virtual int giveLocalCoordinateSystem (FloatMatrix &answer)
 Returns local coordinate system of receiver Required by material models with ortho- and anisotrophy. More...
 
virtual void computeMidPlaneNormal (FloatArray &answer, const GaussPoint *gp)
 Computes mid-plane normal of receiver at integration point. More...
 
virtual int adaptiveMap (Domain *oldd, TimeStep *tStep)
 Initializes the internal state variables stored in all IPs according to state in given domain. More...
 
virtual int mapStateVariables (Domain &iOldDom, const TimeStep &iTStep)
 Maps the internal state variables stored in all IPs from the old domain to the new domain. More...
 
virtual int adaptiveUpdate (TimeStep *tStep)
 Updates the internal state variables stored in all IPs according to already mapped state. More...
 
virtual int adaptiveFinish (TimeStep *tStep)
 Finishes the mapping for given time step. More...
 
virtual void updateLocalNumbering (EntityRenumberingFunctor &f)
 Local renumbering support. More...
 
template<class T >
void ipEvaluator (T *src, void(T::*f)(GaussPoint *gp))
 Integration point evaluator, loops over receiver IP's and calls given function (passed as f parameter) on them. The IP is parameter to function f. More...
 
template<class T , class S >
void ipEvaluator (T *src, void(T::*f)(GaussPoint *, S &), S &_val)
 Integration point evaluator, loops over receiver IP's and calls given function (passed as f parameter) on them. The IP is parameter to function f as well as additional array. More...
 
- Public Member Functions inherited from oofem::FEMComponent
 FEMComponent (int n, Domain *d)
 Regular constructor, creates component with given number and belonging to given domain. More...
 
virtual ~FEMComponent ()
 Virtual destructor. More...
 
DomaingiveDomain () const
 
virtual void setDomain (Domain *d)
 Sets associated Domain. More...
 
int giveNumber () const
 
void setNumber (int num)
 Sets number of receiver. More...
 
virtual void printYourself ()
 Prints receiver state on stdout. Useful for debugging. More...
 
std::string errorInfo (const char *func) const
 Returns string for prepending output (used by error reporting macros). More...
 
- Public Member Functions inherited from oofem::NodalAveragingRecoveryModelInterface
 NodalAveragingRecoveryModelInterface ()
 Constructor. More...
 
- Public Member Functions inherited from oofem::Interface
 Interface ()
 Constructor. More...
 
virtual ~Interface ()
 
- Public Member Functions inherited from oofem::ZZNodalRecoveryModelInterface
 ZZNodalRecoveryModelInterface (Element *element)
 Constructor. More...
 
virtual bool ZZNodalRecoveryMI_computeNValProduct (FloatMatrix &answer, InternalStateType type, TimeStep *tStep)
 Computes the element contribution to $ \int_\Omega N^{\mathrm{T}}\alpha\;\mathrm{d}\Omega $, where $ \alpha $ is quantity to be recovered (for example stress or strain vector). More...
 
virtual void ZZNodalRecoveryMI_computeNNMatrix (FloatArray &answer, InternalStateType type)
 Computes the element contribution to $\int_\Omega N^{\mathrm{T}} \cdot N\;\mathrm{d}\Omega $ term. More...
 
- Public Member Functions inherited from oofem::SpatialLocalizerInterface
 SpatialLocalizerInterface (Element *element)
 
virtual int SpatialLocalizerI_containsPoint (const FloatArray &coords)
 Checks if element contains specified coordinate. More...
 
int SpatialLocalizerI_BBoxContainsPoint (const FloatArray &coords)
 Creates a bounding box of the nodes and checks if it includes the given coordinate. More...
 
virtual void SpatialLocalizerI_giveBBox (FloatArray &bb0, FloatArray &bb1)
 Creates a bounding box of the nodes and checks if it includes the given coordinate. More...
 
virtual double SpatialLocalizerI_giveClosestPoint (FloatArray &lcoords, FloatArray &closest, const FloatArray &gcoords)
 Gives the closest point on the element. More...
 

Static Protected Attributes

static FEI2dTrLin interpolation_lin
 Interpolation for pressure. More...
 
static FEI2dTrQuad interpolation_quad
 Interpolation for geometry and velocity. More...
 
static IntArray momentum_ordering = {1, 2, 4, 5, 7, 8, 10, 11, 12, 13, 14, 15}
 Ordering of dofs in element. Used to assemble the element stiffness. More...
 
static IntArray conservation_ordering = {3, 6, 9}
 
static IntArray edge_ordering [3]
 Ordering of dofs on edges. Used to assemble edge loads. More...
 

Additional Inherited Members

- Protected Attributes inherited from oofem::Element
int numberOfDofMans
 Number of dofmanagers. More...
 
IntArray dofManArray
 Array containing dofmanager numbers. More...
 
int material
 Number of associated material. More...
 
int crossSection
 Number of associated cross section. More...
 
IntArray bodyLoadArray
 Array containing indexes of loads (body loads and boundary loads are kept separately), that apply on receiver. More...
 
IntArray boundaryLoadArray
 
std::vector< std::unique_ptr< IntegrationRule > > integrationRulesArray
 List of integration rules of receiver (each integration rule contains associated integration points also). More...
 
FloatMatrix elemLocalCS
 Transformation material matrix, used in orthotropic and anisotropic materials, global->local transformation. More...
 
int activityTimeFunction
 Element activity time function. If defined, nonzero value indicates active receiver, zero value inactive element. More...
 
int globalNumber
 In parallel mode, globalNumber contains globally unique DoFManager number. More...
 
int numberOfGaussPoints
 Number of integration points as specified by nip. More...
 
elementParallelMode parallel_mode
 Determines the parallel mode of the element. More...
 
IntArray partitions
 List of partition sharing the shared element or remote partition containing remote element counterpart. More...
 
- Protected Attributes inherited from oofem::FEMComponent
int number
 Component number. More...
 
Domaindomain
 Link to domain object, useful for communicating with other FEM components. More...
 

Detailed Description

Triangular Taylor-Hood element for Stokes flow.

Quadratic interpolation of geometry and velocity, and linear interpolation of pressures.

Author
Carl Sandström
Mikael Öhman

Definition at line 57 of file tr21stokes.h.

Constructor & Destructor Documentation

oofem::Tr21Stokes::~Tr21Stokes ( )
virtual

Definition at line 79 of file tr21stokes.C.

Member Function Documentation

void oofem::Tr21Stokes::computeBoundarySurfaceLoadVector ( FloatArray answer,
BoundaryLoad load,
int  boundary,
CharType  type,
ValueModeType  mode,
TimeStep tStep,
bool  global = true 
)
virtual

Computes the contribution of the given load at the given boundary surface in global coordinate system.

In general, the answer should include only relevant DOFs at the edge. The related is giveBoundaryLocationArray method, which should return corresponding code numbers.

Note
Elements which do not have an contribution should resize the vector to be empty.
Parameters
answerRequested contribution of load.
loadLoad to compute contribution from.
boundaryBoundary number.
typeType of the contribution.
modeDetermines mode of answer.
tStepTime step when answer is computed.
globalif true (default) then contribution is in global c.s., when false then contribution is in element local c.s.

Reimplemented from oofem::Element.

Definition at line 242 of file tr21stokes.C.

References oofem::FloatArray::assemble(), oofem::FEInterpolation2d::boundaryGiveTransformationJacobian(), oofem::FEInterpolation2d::boundaryLocal2Global(), oofem::FloatArray::clear(), oofem::BoundaryLoad::computeValueAt(), edge_ordering, oofem::FEI2dTrQuad::edgeEvalN(), oofem::Load::FT_Entity, oofem::BoundaryLoad::giveApproxOrder(), oofem::Load::giveFormulationType(), oofem::BoundaryLoad::giveType(), interpolation_quad, N, OOFEM_ERROR, oofem::FloatArray::resize(), oofem::GaussIntegrationRule::SetUpPointsOnLine(), oofem::TransmissionBC, and oofem::FloatArray::zero().

Referenced by computeExternalForcesVector().

void oofem::Tr21Stokes::computeField ( ValueModeType  mode,
TimeStep tStep,
const FloatArray lcoords,
FloatArray answer 
)
virtual

Computes the unknown vector interpolated at the specified local coordinates.

Used for exporting data and mapping fields.

See also
giveElementDofIDMask The unknown vector should match the element field as specified by the element dof IDs.
Parameters
modeMode (total, increment, etc) of the output
tStepTime step to evaluate at
lcoordsLocal coordinates to evaluate at
answerResults

Reimplemented from oofem::Element.

Definition at line 382 of file tr21stokes.C.

References oofem::FloatArray::at(), oofem::Element::computeVectorOf(), oofem::FEI2dTrQuad::evalN(), oofem::FEI2dTrLin::evalN(), oofem::FloatArray::giveSize(), interpolation_lin, interpolation_quad, oofem::FloatArray::resize(), and oofem::FloatArray::zero().

Referenced by giveMaterialMode().

void oofem::Tr21Stokes::computeGaussPoints ( )
virtual

Initializes the array of integration rules member variable.

Element can have multiple integration rules for different tasks. For example structural element family class uses this feature to implement transparent support for reduced and selective integration of some strain components. Must be defined by terminator classes.

See also
IntegrationRule

Reimplemented from oofem::Element.

Definition at line 82 of file tr21stokes.C.

References oofem::Element::giveCrossSection(), oofem::Element::integrationRulesArray, oofem::Element::numberOfGaussPoints, and oofem::CrossSection::setupIntegrationPoints().

void oofem::Tr21Stokes::computeLoadVector ( FloatArray answer,
BodyLoad load,
CharType  type,
ValueModeType  mode,
TimeStep tStep 
)
virtual

Computes the contribution of the given body load (volumetric).

Parameters
answerRequested contribution of load.
loadLoad to compute contribution from.
typeType of the contribution.
modeDetermines mode of answer.
tStepTime step when answer is computed.

Reimplemented from oofem::Element.

Definition at line 209 of file tr21stokes.C.

References oofem::FloatArray::assemble(), oofem::FloatArray::clear(), oofem::Load::computeComponentArrayAt(), oofem::FEI2dTrQuad::evalN(), oofem::Material::give(), oofem::Element::giveCrossSection(), oofem::FloatArray::giveSize(), oofem::FEInterpolation::giveTransformationJacobian(), oofem::Element::integrationRulesArray, interpolation_quad, momentum_ordering, N, oofem::FloatArray::resize(), and oofem::FloatArray::zero().

Referenced by computeExternalForcesVector().

int oofem::Tr21Stokes::computeNumberOfDofs ( )
virtual

Computes or simply returns total number of element's local DOFs.

Must be defined by particular element.

Returns
Number of local DOFs of element.

Reimplemented from oofem::Element.

Definition at line 91 of file tr21stokes.C.

Referenced by giveMaterialMode().

double oofem::Tr21Stokes::computeVolumeAround ( GaussPoint gp)
virtual

Returns volume related to given integration point.

Used typically in subroutines, that perform integration over element volume. Should be implemented by particular elements.

See also
GaussPoint
Parameters
gpIntegration point for which volume is computed.
Returns
Volume for integration point.

Reimplemented from oofem::Element.

Definition at line 105 of file tr21stokes.C.

References oofem::GaussPoint::giveNaturalCoordinates(), oofem::FEInterpolation::giveTransformationJacobian(), oofem::GaussPoint::giveWeight(), and interpolation_quad.

void oofem::Tr21Stokes::giveCharacteristicMatrix ( FloatMatrix answer,
CharType  type,
TimeStep tStep 
)
virtual

Computes characteristic matrix of receiver of requested type in given time step.

Parameters
answerRequested characteristic matrix (stiffness, tangent, ...). If element has no capability to compute requested type of characteristic matrix error function is invoked.
typeId of characteristic component requested.
tStepTime step when answer is computed.

Reimplemented from oofem::Element.

Definition at line 124 of file tr21stokes.C.

References computeStiffnessMatrix(), and OOFEM_ERROR.

void oofem::Tr21Stokes::giveCharacteristicVector ( FloatArray answer,
CharType  type,
ValueModeType  mode,
TimeStep tStep 
)
virtual

Computes characteristic vector of receiver of requested type in given time step.

If element has no capability to compute requested type of characteristic vector error function is invoked.

Parameters
answerRequested characteristic vector.
typeId of characteristic component requested.
modeDetermines mode of answer.
tStepTime step when answer is computed.

Reimplemented from oofem::Element.

Definition at line 111 of file tr21stokes.C.

References computeExternalForcesVector(), computeInternalForcesVector(), and OOFEM_ERROR.

virtual const char* oofem::Tr21Stokes::giveClassName ( ) const
inlinevirtual
Returns
Class name of the receiver.

Reimplemented from oofem::Element.

Definition at line 90 of file tr21stokes.h.

void oofem::Tr21Stokes::giveDofManDofIDMask ( int  inode,
IntArray answer 
) const
virtual

Gives the dof ID mask for the element.

This element (Taylor-Hood) has V_u, V_v, P_f in node 1,2,3 and V_u, V_v in node 4,5,6.

Parameters
inodeNode to check.
answerList of dof IDs.

Reimplemented from oofem::Element.

Definition at line 96 of file tr21stokes.C.

Referenced by giveMaterialMode().

virtual const char* oofem::Tr21Stokes::giveInputRecordName ( ) const
inlinevirtual
Returns
Input record name of the receiver.

Implements oofem::FEMComponent.

Definition at line 91 of file tr21stokes.h.

References _IFT_Tr21Stokes_Name.

Interface * oofem::Tr21Stokes::giveInterface ( InterfaceType  t)
virtual

Interface requesting service.

See also
InterfaceType
Returns
Requested interface if implemented, otherwise NULL.

Reimplemented from oofem::FEMComponent.

Definition at line 365 of file tr21stokes.C.

References oofem::FEMComponent::giveInterface(), oofem::NodalAveragingRecoveryModelInterfaceType, oofem::SpatialLocalizerInterfaceType, and oofem::ZZNodalRecoveryModelInterfaceType.

Referenced by giveMaterialMode().

FEInterpolation * oofem::Tr21Stokes::giveInterpolation ( ) const
virtual
Returns
Interpolation of the element geometry, or NULL if none exist.

Reimplemented from oofem::Element.

Definition at line 344 of file tr21stokes.C.

References interpolation_quad.

Referenced by giveMaterialMode().

FEInterpolation * oofem::Tr21Stokes::giveInterpolation ( DofIDItem  id) const
virtual

Returns the interpolation for the specific dof id.

Special elements which uses a mixed interpolation should reimplement this method.

Parameters
idID of the dof for the for the requested interpolation.
Returns
Appropriate interpolation, or NULL if none exists.

Reimplemented from oofem::Element.

Definition at line 349 of file tr21stokes.C.

References interpolation_lin, and interpolation_quad.

virtual MaterialMode oofem::Tr21Stokes::giveMaterialMode ( )
inlinevirtual

Returns material mode for receiver integration points.

Should be specialized.

Returns
Material mode of element.

Reimplemented from oofem::Element.

Definition at line 92 of file tr21stokes.h.

References computeField(), computeNumberOfDofs(), giveDofManDofIDMask(), giveInterface(), giveInterpolation(), NodalAveragingRecoveryMI_computeNodalValue(), and updateYourself().

void oofem::Tr21Stokes::NodalAveragingRecoveryMI_computeNodalValue ( FloatArray answer,
int  node,
InternalStateType  type,
TimeStep tStep 
)
virtual

Computes the element value in given node.

Parameters
answerContains the result.
nodeElement node number.
typeDetermines the type of internal variable to be recovered.
tStepTime step.

Implements oofem::NodalAveragingRecoveryModelInterface.

Definition at line 403 of file tr21stokes.C.

References oofem::FloatArray::at(), oofem::FloatArray::clear(), oofem::DofManager::giveDofWithID(), oofem::Element::giveNode(), oofem::Dof::giveUnknown(), and oofem::FloatArray::resize().

Referenced by giveMaterialMode().

void oofem::Tr21Stokes::updateYourself ( TimeStep tStep)
virtual

Updates element state after equilibrium in time step has been reached.

Default implementation updates all integration rules defined by integrationRulesArray member variable. Doing this, all integration points and their material statuses are updated also. All temporary history variables, which now describe equilibrium state are copied into equilibrium ones. The existing internal state is used for update.

Parameters
tStepTime step for newly reached state.
See also
Material::updateYourself
IntegrationRule::updateYourself
GaussPoint::updateYourself
Element::updateInternalState

Reimplemented from oofem::Element.

Definition at line 358 of file tr21stokes.C.

References oofem::Element::updateYourself().

Referenced by giveMaterialMode().

Member Data Documentation

IntArray oofem::Tr21Stokes::conservation_ordering = {3, 6, 9}
staticprotected

Definition at line 68 of file tr21stokes.h.

Referenced by computeInternalForcesVector(), and computeStiffnessMatrix().

IntArray oofem::Tr21Stokes::edge_ordering
staticprotected
Initial value:
= {
{1, 2, 4, 5, 10, 11},
{4, 5, 7, 8, 12, 13},
{7, 8, 1, 2, 14, 15}
}

Ordering of dofs on edges. Used to assemble edge loads.

Definition at line 70 of file tr21stokes.h.

Referenced by computeBoundarySurfaceLoadVector().

FEI2dTrLin oofem::Tr21Stokes::interpolation_lin
staticprotected

Interpolation for pressure.

Definition at line 64 of file tr21stokes.h.

Referenced by computeField(), computeInternalForcesVector(), computeStiffnessMatrix(), and giveInterpolation().

FEI2dTrQuad oofem::Tr21Stokes::interpolation_quad
staticprotected
IntArray oofem::Tr21Stokes::momentum_ordering = {1, 2, 4, 5, 7, 8, 10, 11, 12, 13, 14, 15}
staticprotected

Ordering of dofs in element. Used to assemble the element stiffness.

Definition at line 68 of file tr21stokes.h.

Referenced by computeInternalForcesVector(), computeLoadVector(), and computeStiffnessMatrix().


The documentation for this class was generated from the following files:

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Project e-mail: info@oofem.org
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