CFD Online Discussion Forums

CFD Online Discussion Forums (https://www.cfd-online.com/Forums/)
-   Main CFD Forum (https://www.cfd-online.com/Forums/main/)
-   -   flow reversal at inlet (https://www.cfd-online.com/Forums/main/88158-flow-reversal-inlet.html)

salihovic May 10, 2011 03:56

flow reversal at inlet
 
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+2*u0*sin(w*t);


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,


All times are GMT -4. The time now is 06:05.