## 11.6. Solver Control of Rigid Bodies

The rigid body motion is controlled by the rigid body solver, which is called by the main flow solver. Each call to the rigid body solver is made immediately before the step of processing mesh motion.

You can choose when the rigid body solver is called. You can also change the convergence criteria and amount of under relaxation applied by the rigid body solver. For details, see Rigid Body Control Tab in the CFX-Pre User's Guide.

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