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periodic boundary condition in taylor-coutte flow

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Old   November 21, 2007, 07:38
Default periodic boundary condition in taylor-coutte flow
  #1
jaysree
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Greetings to everybody. I work on 2D cfd simulation of taylor coutte flow using Fluent vs-6. In my problem, the outer cylinder is staionary and inner is rotating.Can anybody help me how to give rotational velocity to the inner cylinder while defining boundary condition in fluent. I define inner cylinder as periodic but could not give a specific value to the rotational velocity.

Thanks for your kind help. Jaysree

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Old   November 24, 2007, 00:25
Default Re: periodic boundary condition in taylor-coutte f
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liz1
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Try to defined the problem as 2D axisymmetric instead of periodic.
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Old   November 26, 2007, 04:33
Default Re: periodic boundary condition in taylor-coutte f
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jaysree
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Thankyou very much for ur help. But whenever I am using 2D-axisymmetric model it is the following error- divergence detected in AMG solver: x-momentum

What to do further? Any idea please.

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Old   November 27, 2007, 17:53
Default Re: periodic boundary condition in taylor-coutte f
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raj
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Change BC if possible... play with ur initial conditions...and solver...if using turbulence, then try to change the default values to min then increase gradualy to max to get convergence...

Gud Luck

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Old   December 3, 2007, 04:00
Default Re: periodic boundary condition in taylor-coutte f
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Ramesh.K
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Hi,

u can try for a 3d case more easily than struggling for a 2d case for this simple geometry

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