reference values - for Coefficient of drag and Drag

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  • Last Post 22 February 2019
VSK1989 posted this 22 February 2019

Dear Team Ansys ,

Greetings .

I am unable to obtain good solution in Fluent due to reference values . Not sure about how to calculate for the following geometry.

Thanks and regards ,

 

v shravan koundinya 

 

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rwoolhou posted this 22 February 2019

The result is correct: report the forces.  Lift & drag and pressure coefficients are dependent on the reference values so need to be calculated for the model. 

VSK1989 posted this 22 February 2019

Hi ,

 

I am getting drag as 10 newtons and Drag coefficient as 1.55. But for 3D model drag is only 1.98 newtons . Please let me know what values to be taken.

rwoolhou posted this 22 February 2019

2d assumes the domain is 1m thick; 3d and you have a defined thickness. If you account for the 2d "thickness" how does it compare? 

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