Products: Abaqus/CFD Abaqus/CAE
You must use Abaqus/CAE to prepare your Abaqus/CFD analysis for co-simulation. Preparing an Abaqus/CFD analysis for co-simulation involves creating a co-simulation interaction and doing the following:
identifying the analysis step for the co-simulation analysis;
identifying the interface regions in the Abaqus/CFD model; and
defining the rendezvousing scheme.
You must select a flow procedure for the analysis step to define the co-simulation interaction in Abaqus/CAE. There can be only one active co-simulation interaction in an analysis.
| Input File Usage: | You can generate the input file using Abaqus/CAE. |
| Abaqus/CAE Usage: | Interaction module: Create Interaction: Fluid-Structure Co-simulation boundary: Name: name: Step: select flow procedure |
Abaqus/CFD to Abaqus/Standard or to Abaqus/Explicit co-simulation can be used with the incompressible fluid dynamic procedure type in Abaqus/CFD (see “Incompressible fluid dynamic analysis,” Section 6.6.2). The supported procedure types for the coupled Abaqus/Standard or Abaqus/Explicit analysis are listed in “Supported procedure types for co-simulation with Abaqus/CFD” in “Preparing an Abaqus/Standard or Abaqus/Explicit analysis for co-simulation,” Section 14.1.2.
You specify an interface region using surfaces when coupling Abaqus/CFD to Abaqus/Standard or to Abaqus/Explicit. You must define an element-based surface. You may have dissimilar meshes in regions shared in the model definitions.
| Input File Usage: | You can generate the input file using Abaqus/CAE. |
| Abaqus/CAE Usage: | Interaction module: Create Interaction: Fluid-Structure Co-simulation boundary: select surface region |
In co-simulation with Abaqus/CFD the fields exchanged are determined automatically by Abaqus/CAE.
For coupling between Abaqus/CFD and Abaqus/Standard or Abaqus/Explicit, refer to “Abaqus/CFD to Abaqus/Standard or to Abaqus/Explicit co-simulation,” Section 14.1.5.
The coupling schemes provided are globally explicit; that is, the loads and boundary conditions for the next coupling step are determined based on the solution of the previous coupling step. Hence, the overall convergence of a coupled solution is expected to behave similarly to that of an explicit algorithm; transient problems require a suitable rendezvousing scheme such that data are exchanged with a frequency that ensures overall solution stability.