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UDF for lift force on a bluff body

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Old   April 10, 2005, 01:36
Default UDF for lift force on a bluff body
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Hi, This is sawa. I'm working with a bluff body problem. I need to get the lift force acting on body inorder to calculate the response using udf. Could find the way to get a total force acting over the body using "valve.c" of udf tutorial. Is there any way to get only the lift force over the body. Thanks in advance. sawa
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Old   April 10, 2005, 04:05
Default Re: UDF for lift force on a bluff body
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Hi, If you wish to calculate the component of total force working on one axis (for example Z) it can be made so: begin_f_loop (f, t)


F_AREA (A, f, t);

force += F_P (f, t) * A[2];

} end_f_loop (f, t)

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Old   April 11, 2005, 03:06
Default Re: UDF for lift force on a bluff body
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Yes, thatěs right. But that works only for the segregated solver...Any idea for the ciupled solver?
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