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Same conditions but different reynolds number

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Old   March 17, 2008, 12:57
Default Same conditions but different reynolds number
Luis Díaz
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I'm trying to study CD for airship envelope shapes depending on different paramenters: length/diameter, volume,etc.

I have data for different reynolds numbers o check my results, but I have to carry out the simulations without changing the velocity magnitude, density and viscosity. How can I do that?

What length I have to set as characteristic length to get the Reynolds number: The envelope length or the sphere diameter where I put inside the envelope for the simulations?


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