UFLUID

User subroutine to define fluid density and fluid compliance for hydrostatic fluid elements.

User subroutine UFLUID:

  • is called for each cavity for which a user-defined fluid constitutive model is being specified;

  • is called for every fluid element (About surface-based fluid cavities) and for every fluid exchange definition (Fluid exchange definition) connected to a cavity reference node;

  • requires that the fluid density, ρ(p,θ), and the fluid pressure compliance, Cp, be defined;

  • requires that the fluid temperature compliance, Cθ, be defined if the routine is to be used in a linear perturbation step and the fluid is subjected to a temperature excursion; and

  • ignores any data specified for the fluid constitutive model outside the user subroutine.

The following topics are discussed:

Related Topics
In Other Guides
Fluid cavity definition
*FLUID BEHAVIOR
UFLUID

ProductsAbaqus/Standard