Figure 26: Line1ht element in (x,y,z) space.
Two node linear isoparametric element for for heat transfer problems. Each node has 1 degree of freedom. The cross section property “area” is requested from the cross section. The element geometry is specified in (x,y,z) plane. The element features are summarized in Table 56. Stabilization through lumped capacity matrix is suggested in transient transport problems, using lumped.
| Keyword | Line1ht |
| Description | Line (truss-like) finite element with linear approximation for heat transfer problems |
| Specific parameters | - |
| Unknowns | Single dof (T_f - temperature) is required in each node. |
| Approximation | Linear approximation of temperature. |
| Integration | Integration using one point gauss integration formula. |
| Loads | Body loads are supported. Boundary loads are unsupported. |
| Features | - |
| CS properties | Area |
| Status | Reliable |
| Tests/Examples | |
Line (truss-like) finite element with linear approximation of moisture. Other features are the same as for Line1ht in Section 3.1.1.
Line (truss-like) finite element with linear approximations of temperature and moisture. Other features are the same as for Tr1ht in Section 3.1.1.