Co-Simulation Interactions

Co-simulation interactions allow you to use your physics simulations in a multiphysics experiment in the Multiscale Experiment Creation app.

You define these interactions to connect different simulation types; for example, a mechanical/structural scenario and a fluid flow scenario. During a fluid-structure interaction (FSI) co-simulation, the movement and behavior of the fluid or gas and its effect on the solid structure is computed. For example, the motion of the fluid might cause stress, strain, and deformation in the structural component. Other physical phenomena such as thermal effects might contribute to the result.

The main purpose of an FSI port region is to identify the surface at the interface boundary between the fluid domain and the structure; for example, the inner wall of a pipe or outer surface of a car. The port region also couples the mechanical or structural step sequence with the flow step sequence and vice versa. This coupling allows the co-simulation that is executed simultaneously by the Multiscale Experiment Creation app, exchanging data at certain time intervals between the flow simulation and the mechanical/structural simulation.

Input ports and output ports define scalar variable connections between components in a co-simulation experiment.

Port information is published to the 3DEXPERIENCE platform database for use in the Multiscale Experiment Creation co-simulation app. In Multiscale Experiment Creation, the port regions that you define in the physics simulation apps become region-to-region connections between components. These connections specify the exchange of field output variables recorded during the physics simulations (in both Abaqus solvers). For example, variables such as displacement and temperature can be exchanged.