Flow-Structural Coupled Solution Parameters dialog box (Multiphysics)

Modeling Object
Name	Sets the name for the modeling object.
Label	Sets a unique numeric identifier for the modeling object.
Description	Lets you enter a description for the modeling object.
Coupling Control
Coupling Time Option	Controls the time step increment at which the software exchanges data between the solvers, up to the solution step End Time. The Simcenter Nastran solver and the Simcenter 3D Flow solver exchange data at coupling times. The End Time is always a coupling time.Smaller Time Step of Coupled SolversThe coupling times are at the smallest time step increment of the two solvers within the current solution step.Structural Time StepThe coupling times are at each of the structural solver time steps.Flow Time StepThe coupling times are at each of the flow solver time steps.Solution Step End TimeThe coupling time is only at the solution step End Time.User-Specified Time StepThe coupling times are at the time step increment that you enter in User-Specified Time Step box.
Mode	Specifies the coupling mode between the Simcenter Nastran and Flow solvers. Only sequential mode is available.SequentialThe structural and flow solvers pass information to each other once per coupling time and do not attempt to converge. The starting solver solves the solution until convergence is obtained, and then the next solver solves the other solution using the values from the first solution.The flow solver is the starting solver.
Additional Parameters
Pass Flow Boundary Condition Pressures and Shear Stresses to Structural Solver	Passes pressures and shear stresses exerted by the fluid domain on flow surfaces from the flow solver to Simcenter Nastran.
Pass Structural Displacements to Flow Solver	Passes displacements on flow surface nodes from Simcenter Nastran to the flow solver.

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Define coupled solution parameters

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Flow-Structural Coupled Solution Parameters dialog box (Multiphysics), Simcenter 3D 2021.1 Series

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