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Could it be possible to do LES on a prototype geometry

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Old   March 2, 2006, 15:48
Default I have a tank with dimensions
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Xiaofeng Liu
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I have a tank with dimensions of 20m long, 5m wide and 3m deep.
Is it possible to do a LES simulation on it? I know it would be extremely expensive and will take a very very long time. I have access to supercomputer resource. But still I have no idea wether this would be crazy.

I know many of you have experience on LES. Any information will be good.
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Old   March 2, 2006, 16:01
Default Whats in the tank?
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Whats in the tank?
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Old   March 2, 2006, 16:12
Default What's the Reynolds number?
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What's the Reynolds number?
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Old   March 2, 2006, 16:12
Default For test, only water is consid
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For test, only water is considered. If it's feasible, some particles will be added into it.

I am interested in the density current.
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Old   March 2, 2006, 16:18
Default Considering the dimensions, Re
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Considering the dimensions, Reynolds number should be very big.
The inlet velocity is in the order of 0.02m/s. So Re=0.02*20/1E-6=4E+5.
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Old   March 2, 2006, 18:50
Default I doubt very much your largest
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I doubt very much your largest length scale will be 20m in a 20x5x3 tank. Even so, I have done LES (DES actually) of a complete automobiles at 140km/h with OpenFOAM. Thats a Re of ~40*5/1.4e-5 = 14e6.

So go ahead, I don't think you will need a supercomputer though.
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Old   March 2, 2006, 22:08
Default That's a good news. I will g
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That's a good news.
I will go ahead to give it a try.
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