udf in fluent

arun__1985 · June 2, 2012, 02:58

Hello to everyone..

This is my first post in CFD online.. I am trying to simulate pitching airfoil problem in fluent using the udf posted in this forum. The problem i am facing is that the airfoil starts oscillating either above or below the chord line at zero angle of attack ie, it is no showing sine function variation in its motion.. I am new to udf programming.. couldn't sort out the exact problem of it.. please provide me some guidance in regard to this.. Thanks..

samcfd · January 31, 2013, 00:27

hello arun,

i'm trying to simulate the same. i Really have no idea how to write UDF for the same. can u send me ur UDF so that i can try n use it for my problem. i would be greatful.

Thanks
samrat

June 2, 2012, 02:58	udf in fluent	#1
arun__1985 New Member arun kumar Join Date: Mar 2012 Posts: 2 Rep Power: 0	Hello to everyone.. This is my first post in CFD online.. I am trying to simulate pitching airfoil problem in fluent using the udf posted in this forum. The problem i am facing is that the airfoil starts oscillating either above or below the chord line at zero angle of attack ie, it is no showing sine function variation in its motion.. I am new to udf programming.. couldn't sort out the exact problem of it.. please provide me some guidance in regard to this.. Thanks..

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January 31, 2013, 00:27		#2
samcfd Member samrat himvanth nanduri Join Date: May 2012 Posts: 30 Rep Power: 13	hello arun, i'm trying to simulate the same. i Really have no idea how to write UDF for the same. can u send me ur UDF so that i can try n use it for my problem. i would be greatful. Thanks samrat