Why ANSYS FLUENT gives me a wrong answer???? -- CFD Online Discussion Forums

August 22, 2018, 07:12	Why ANSYS FLUENT gives me a wrong answer????	#1
TomFord New Member Tom Ford Join Date: Aug 2018 Posts: 2 Rep Power: 0	Hello, I am Tom Ford. I am working on Vortex Induced Vibrations of Circular Cylinder in ANSYS Fluent. I am using a UDF (DEFINE_CG_MOTION) for this problem. I get a right answer from the FLUENT 6.3, But when I use the ANSYS FLUENT version 16, 17, or 18, they give me some answers, but they are all wrong!!!!! I dont know why!!! I use the same simulation, mesh, and setup in every version of fluent. I think I have installed a correct version of VISUAL STUDIO for every version of FLUENT. Can any one help me? What is wrong? Thanks.

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