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-   -   Appropriate flow velocity for basic 2d analysis (http://www.cfd-online.com/Forums/fluent/39617-appropriate-flow-velocity-basic-2d-analysis.html)

 Lukasz Mosakowski February 13, 2006 19:30

Appropriate flow velocity for basic 2d analysis

Hello. I am performing a 2d analysis of bluff bodies in addition to 3d analysis. I would like to know what an appropriate flow velocity would be for the most basic simulation. One shape is a 7 by 7 square for which the viscosity of the fluid is 0.000017894 kg/m-s ; density is 1.225 kg/m^3 and L = 7 cm. From my research, I have determined that a velocity between 1 m/s and 2 m/s would be most efficient for a basic simulation. However, the reynolds number still winds up being turbulent. Using 1 m/s, the RN is 4792 which is a low degree of turbulence. I can't seem to achieve laminarity with these conditions if i can only change the velocity. Please, what would you suggest.

 mariam February 14, 2006 09:58

proposal

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