Figure 29: Tet1_3D_SUPG element.
Represents 3D linear pyramid element for transient incompressible flow analysis using SUPG/PSPG stabilization with equal order approximation of velocity and pressure fields. Each node has 3 degrees of freedoms (two components of velocity and pressure). The element features are summarized in Table 64.
| Keyword | TET1SUPG |
| Description | linear equal order approximation axisymmetric element |
| Specific parameters | [vof #(rn)][pvof #(rn)] |
| Unknowns | Three velocity components (V_u, V_v, and V_w) and pressure (P_f) are required in each node. |
| Approximation | Linear approximation of velocity and pressure fields. |
| Integration | exact |
| Loads | Constant boundary tractions are supported. Body loads representing the self-weight load are supported. |
| Multi-fluid analysis | The element has support for solving problems with two immiscible fluids in a fixed spatial domain. In the present implementation, a LevelSet tracking algorithm is used to track the position of interface. The material model should be of type Keyword: twofluidmat, that supports modelling of two immiscible fluids. |
| Status |
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