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how to set initial velocity field expressed with cylindrical coordinate

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Old   November 14, 2013, 02:09
Default how to set initial velocity field expressed with cylindrical coordinate
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卢建芳
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hello everyone
I am a new foamer. I want to set a initial velocity field with funkySetFields. But the initial velocity field is given with cylindrical coordinate.
The expression is:
Code:
U_z=0//axialVelocity
U_r=0//radialVelocity
U_theta=4/(2*3.1415926*r)//tangentVelocity, r=sqrt(x*x+y*y)
I don't know how to realize this.I hope you can give me some suggestion.

Thank you very much!

regards!

lujianfang
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