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Old   January 4, 2012, 07:29
Unhappy I need help in udf ,please.
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鹏程
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I want to have Numerical simulation of 0012 airfoil in fluent .But only a section of the wall of the 0012 airfoil is changing like cosine curve,that is only the y coordinate of this section is changing. Could you tell me how to achieve it? I had

to try to use the udf,but i didn't know how to achieve it. Thank

you for your help.
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Old   January 4, 2012, 11:12
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nobody?i need help.............
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Old   January 4, 2012, 14:17
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Could you explain you problem clearly. Is airfoil moving or stationary? What do you mean by only section of airfoil is moving.
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Old   January 5, 2012, 11:26
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Quote:
Originally Posted by duri View Post
Could you explain you problem clearly. Is airfoil moving or stationary? What do you mean by only section of airfoil is moving.
thank you .airfoil isn't moving. i mean that only a piece of wall is sinusoidal and the sinusoidal is function of time.
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Old   January 7, 2012, 09:47
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You want change a solid wall geometry and hence deform the grid?
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Old   January 7, 2012, 11:09
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You want change a solid wall geometry and hence deform the grid?
yes,but i don't know how to use the DEFINE_GRID_MOTION of UDF ...
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