3D SUPG/PSGP Elements

3D SUPG/PSGP Elements

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 68.

Fig. 31 Tet1_3D_SUPG element.

Table 68 TET1SUPG element summary

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