tailorcrete:examples:v-funnel
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tailorcrete:examples:v-funnel [2012/07/26 11:43] – kolarfil | tailorcrete:examples:v-funnel [2012/09/13 09:14] (current) – bp | ||
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- | ==== V-funnel simulation ==== | + | ===== V-funnel simulation |
- | === Test setup and Geometry === | + | ==== Test setup and Geometry |
- | V-funnel problem is one of the first problem, that was modeled. It is focused on boundary condition influence. In it's easiest form is modeled | + | V-funnel problem |
- | {{: | + | |{{: |
+ | | Fig. 1.a: Geometry of the test | Fig. 1.b: Boundary conditions | ||
- | === Computational Model === | + | \\ |
- | Scheme of two-dimensional | + | |
- | *yield stress 60 Pa | + | ==== Computational Model ==== |
- | *plastic viscosity 20 Pa*s. | + | {{ : |
+ | The setup of 2D computational model is illustrated in Fig. 1b. The problem is modeled as a two-phase flow problem, consisting of two inmissible fluids: one representing | ||
+ | *yield stress 60 [Pa] | ||
+ | *plastic viscosity 20 [Pa*s] | ||
So called "Slip with friction" | So called "Slip with friction" | ||
- | {{: | + | The next picture ilustrates the computational mesh. The lower part is refined in order to improve accuracy of predicted flow pattern near the neck. The mesh contains 2907 nodes and 5567 tringular elements with linear interpolation (same approximation used for both velocity and pressure field). Since such element is not satisfying LBB condition, PSPG stabilization is used for preventing oscilations in pressure field. SUPG stabilization improving accuracy in connection with non-linear convective term is also used. For further information, |
- | On the next picture is mesh used for simulation. It is devided into two parts. Lower part is finer to improve accuracy of the flow near the neck. The mesh contains 2907 nodes and 5567 elements. It is solved using linear triangular elements (linear both in velocity and pressure field). Since that element is not satisfying LBB condition, PSPG stabilization is used for preventing oscilations in pressure field. SUPG stabilization improving accuracy in connection with non-linear convective term is also used. For further information, | + | The link below contains |
- | + | ||
- | {{: | + | |
- | + | ||
- | The link below contains input file of V-funnel simulation | + | |
{{: | {{: | ||
- | Description of input file can be found here: [[tailorcrete: | + | The general |
- | === Results === | + | ==== Results |
On the video below, motion of concrete-air interface is shown. The characteristic " | On the video below, motion of concrete-air interface is shown. The characteristic " | ||
- | {{: | + | {{video> |
- | + | ||
- | === References === | + | |
- | [1] BARTH, T.; SETHIAN, J.A. (2009), Numerical Schemes for the HamiltonJacobi and Level Set Equations on Triangu- lated Domains. Journal of computational physics, 145 1-40. | + | ==== References ==== |
- | [2] TEZDUYAR, T : Stabilized Finite Element Formulations for Incompressible Flow Computations, | + | - BARTH, T.; SETHIAN, J.A. (2009), Numerical Schemes for the HamiltonJacobi and Level Set Equations on Triangulated Domains. Journal of computational physics, 145 1-40. |
+ | - TEZDUYAR, T : Stabilized Finite Element Formulations for Incompressible Flow Computations, |
tailorcrete/examples/v-funnel.1343295812.txt.gz · Last modified: 2012/07/26 11:43 by kolarfil