Introduce a perturbation during a simulation -- CFD Online Discussion Forums

November 25, 2013, 20:07

Introduce a perturbation during a simulation

ziggo

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Bart A.

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In this article on unsteady CFD analysis of von Karman vortex shedding the following is said on page 3, section 2.3:

Quote:

When the steady state solution is achieved within about 80 time steps, a jet normal to the mean flow direction is introduced in the vicinity of the trailing edge during 10 time steps.

This is done to accelerate the occurrence of the vortex shedding.
How do I introduce a local jet normal to the flow in Fluent for a certain amount of time steps?

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