Fluid dynamic analyses using Abaqus/CFD – Integrated CFD-program for the simulation of incompressible flow

Under the CAE user-interface Abaqus/CFD serves as enhancement to the Abaqus/Standard and Abaqus/Explicit solvers and provides advanced capabilities for the analysis of coupled nonlinear problems in the area of fluid-structure-interaction, FSI. These include, inter alia, interactions between solids and fluids, including heat transfer with the fluid affecting the solids which, in turn, react upon the fluid. This applies e.g. to pressure, velocity, fluid flow and thermal flow.

Abaqus/CFD – capabilities

  • Laminar and turbulent steady-state and transient flow of Newtonian and Non-Newtonian fluids. For the modeling of the boundary conditions the following turbulence models are available:
    • Spalart-Allmaras
    • ILES
    • RNG k-epsilon.
  • Thermal fluid analysis with natural of forced convection
  • Any practice-relevant constellation with respect to the fluid flow, with the fluid flow being in solid structures or surrounding solid bodies; flow through porous media is possible as well as flow with moving boundary conditions and when dealing with problems induced by spatially varying body forces.

For fluid-structure-interaction SIMULIA/Abaqus offers the following analysis and modeling techniques

  • Partitioned approach
    The equations for continuums mechanics and CFD are solved separately, and the calculated boundary conditions and loads are transferred to the coupling points.
  • Special approach
    Coupled Euler-Lagrange-approach