Vortex Shedding

rishi_iyengar · April 5, 2011, 05:35

Dear All
i am doing an unsteady simulation of flow around a cylinder....i am trying to perturb the flow field in order to get vortex shedding as the inlet velocity is very less...can anyone suggest in which region exactly i can perturb the solution?

Thanks!!!

Rishikesh

lava12005 · April 9, 2011, 05:36

Hi,
I am doing simulations of flow around a cylinder also. A good code usually can get the shedding on its own.

It takes sometime for the flow to develop vortex shedding, and what Reynolds Number are you running on?

rishi_iyengar · April 11, 2011, 01:56

Hi

I am doing the simulation for Re=2370...and i think i agree with your observation that vortex shedding does require some time to develop....one more issue is the flow velocity is really less......5.75m/s....this will also be a factor.......

April 5, 2011, 05:35	Vortex Shedding	#1
rishi_iyengar New Member Rishikesh Join Date: Apr 2011 Posts: 4 Rep Power: 15	Dear All i am doing an unsteady simulation of flow around a cylinder....i am trying to perturb the flow field in order to get vortex shedding as the inlet velocity is very less...can anyone suggest in which region exactly i can perturb the solution? Thanks!!! Rishikesh

April 11, 2011, 01:56	Vortex Shedding	#3
rishi_iyengar New Member Rishikesh Join Date: Apr 2011 Posts: 4 Rep Power: 15	Hi I am doing the simulation for Re=2370...and i think i agree with your observation that vortex shedding does require some time to develop....one more issue is the flow velocity is really less......5.75m/s....this will also be a factor.......

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April 9, 2011, 05:36		#2
lava12005 Senior Member KHB Join Date: Aug 2010 Location: Singapore Posts: 118 Rep Power: 15	Hi, I am doing simulations of flow around a cylinder also. A good code usually can get the shedding on its own. It takes sometime for the flow to develop vortex shedding, and what Reynolds Number are you running on?