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Emmanuel April 18, 2006 00:36

Obtaining Reynolds Number in FLUENT
Given Mach number (Fixed), angle of attack, chord length (1m), Reynolds number, I have modeled the flow of air around an airfoil using the Spalart-Allmaras model. I used the FLUENT tutorial, there is no way to input the Reynolds Number directly. How do I obtain the Reynolds number, and how do I vary the Reynolds number? I know Re = (U*L*rho)/mu, I used farfeild in the "Compute From" of the Reference Values. Should I just substitute with the numbers given there to obtain Reynolds Number?

Gurkan April 21, 2006 17:53

Re: Obtaining Reynolds Number in FLUENT

As you have written, you can change the density and/or viscosity. (If Mach no was not a concern, you could change the velocity and could still work with air)


Amit soni April 7, 2016 01:46

Mach number
But U is not matching when i calculated with M and Re

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