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Profiles of u, k and eps in a pipe flow

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Old   April 6, 2006, 12:55
Default Profiles of u, k and eps in a pipe flow
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Hi all,

I am looking for the (experimental) profiles of velocity, turbulent kinetic energy (k) and it's dissipation rate (epsilon) in a fully developed pipe flow. I mean: U(r,Re), k(r,Re) and epsilon(r,Re). r is the radial coordinate and Re is the Reynolds number.

I want them to define the inlet of my simulation domain.

Can anybody provide any reference in this regard?

Thanks a lot
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Old   April 7, 2006, 09:00
Default Re: Profiles of u, k and eps in a pipe flow
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I don't know, but have a look on , that might help.
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Old   April 8, 2006, 22:40
Default Re: Profiles of u, k and eps in a pipe flow
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I usually run a separate calculation on a domain 100D with uniform inflow and constant k and epsilon set so that the turbulence Reynolds number = 10 * real Re. 100D is usually enough to attain dvelopped profiles for U, k nad epsilon. note that epsilon cannot be measured. runnningg 100d will give you consistent fields at the out flow. Use those as your boundray conditions
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