2D modelling of flow past a rotating cylinder

pds24 · February 18, 2011, 11:57

Hi,

I am trying to model flow past a cylinder, initially in 2D, in Fluent. I am trying to plot the lift and drag coefficients against dimensionless time (tU/R) however I have so far only been able to plot agains time or flow time so far. Could anyone help me with this?
Also, I have been using an unsteady k-e model so far, but haven't been able to obtain vortex shedding (at Re=200) which was seen by Mittal and Kumar (2003). Does anyone have any suggestions or tips I might implement?

Cheers
Phill

Oula · August 21, 2015, 11:50

Hi Phill

I am also trying to model a flow passing a rotating cylinder , 2D, in Fluent. I need just to detect the effect of rotation on Von Karman street. I changed the wall boundary condition and I got nothing. Could you please give some tips and advices to achieve this.

Thanks

Regards

February 18, 2011, 11:57	2D modelling of flow past a rotating cylinder	#1
pds24 New Member Phill Join Date: Feb 2011 Posts: 1 Rep Power: 0	Hi, I am trying to model flow past a cylinder, initially in 2D, in Fluent. I am trying to plot the lift and drag coefficients against dimensionless time (tU/R) however I have so far only been able to plot agains time or flow time so far. Could anyone help me with this? Also, I have been using an unsteady k-e model so far, but haven't been able to obtain vortex shedding (at Re=200) which was seen by Mittal and Kumar (2003). Does anyone have any suggestions or tips I might implement? Cheers Phill Oula likes this.

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August 21, 2015, 11:50		#2
Oula Member Oula Join Date: Apr 2015 Location: United Kingdom Posts: 81 Rep Power: 12	Hi Phill I am also trying to model a flow passing a rotating cylinder , 2D, in Fluent. I need just to detect the effect of rotation on Von Karman street. I changed the wall boundary condition and I got nothing. Could you please give some tips and advices to achieve this. Thanks Regards