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Drag coefficent and Drag force

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Old   March 8, 2013, 17:55
Default Drag coefficent and Drag force
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Daniel
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I'm trying to calculate the drag coefficent and drag force on a sphere with diameter 500mm (I'm using mm as measure). My fluid is water and the Reynold coefficient is Re=0.025 and the velocity is 5.0E-5 because I need a laminar behaviour in my simulation and I used the code to put in the controlDict file. The problem that I have is the results of the drag coefficent is very big, like 1.3E+11. I'm don't know what is happenig because I have reviewed all data.

If somebody can help me, it would be terrific.
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Old   March 22, 2013, 05:28
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Ilya
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If you have physically reasonable pressure distribution, just check Aref and Lref in forceCoeffs section of your controlDict.

Or show controlDict here at least.
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