Velocity Inlet BC -- Flow Reversal -- CFD Online Discussion Forums

May 8, 2011, 06:45	Velocity Inlet BC -- Flow Reversal	#1
salihovic New Member selim Join Date: Sep 2009 Location: UK Posts: 19 Rep Power: 17	I have analyzed a flow field over a cylinder in pulsating flow (unsteady flow). At the inlet, we have periodic forcing with high amplitudes. Velocity inlet: u(t)=u0+2u0sin(wt); At some time the flow becomes reversal at the inlet because the time dependent amplitude is twice the steady state amplitude (u0). We have implied a velocity inlet for the inlet boundary condition* What are the possible problems for thsi type of bc in fluent? Can I trust the results? Are there any tutorials, notes for this type of BC and flow reversal at the inlet for FLUENT? Any help, Thanks,

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