Description: You can use Abaqus/CFD to solve the following types of incompressible flow problems:

• Internal or external flows that are steady-state or transient, span a broad Reynolds number range, and involve complex geometry can be simulated with Abaqus/CFD. This includes flow problems induced by spatially varying distributed body forces.

• Problems that involve heat transfer and require an energy equation and that may involve buoyancy-driven flows (i.e., natural convection) can also be solved with Abaqus/CFD. This type of problem includes turbulent heat transfer for a broad range of Prandtl numbers.

• Abaqus/CFD includes the ability to perform deforming-mesh analyses using an arbitrary Lagrangian Eulerian (ALE) description of the equations of motion, heat transfer, and turbulent transport. Deforming-mesh problems may include prescribed boundary motion that induces fluid flow or FSI problems where the boundary motion is relatively independent of the fluid flow.

• Hybrid FVM (finite volume method) and FEM approach for laminar and turbulent flows.

• Time-accurate methods.

• Scalable parallel linear equation solvers include Krylov solvers for transport equations (momentum, turbulence, energy, etc.) and algebraic multigrid (AMG) preconditioned Krylov solvers for pressure-Poisson equations.

• Energy equation for thermal analysis provides temperature-based energy equation and buoyancy-driven flows (natural convection).

• Domain-based parallelism (i.e., message-passing paradigm) where parallel domain decomposition and dynamic load balancing are activated as needed.

• Arbitrary Lagrangian Eulerian (ALE) adaptive meshing for deforming meshes and moving boundary problems.

• Restart (recovery and continuation within a subsequent step).

• Multistep analysis to model laminar to turbulent flow.

• Turbulence models include implicit large-eddy simulation (ILES) and Spalart-Allmaras (steady-state and transient) and provide full support for turbulent energy transport.

Step module: 
    Create Step: General: Flow