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Richardson number for swirling flow

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Old   March 15, 2002, 07:53
Default Richardson number for swirling flow
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Dear colleagues.

Could you inform me any articles about using Richardson number for modeling of swirling, rotating and recirculating flows?

Thank you.

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Old   March 15, 2002, 10:30
Default Re: Richardson number for swirling flow
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Beer,J.M.-Chigier,N.A.: Laminarization of Turbulent Flames in Rotating Environments; Comb.&Flame, Vol.16, 1971, pp.39-45


Beer,J.M.-Chigier,N.A.: Combustion aerodynamics; Applied Science, 1972

Ri = [(1/density)*(d(density)/dr)*(u(centripetal)**2/r)]/[(du(z)/dr)**2]
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Old   March 15, 2002, 12:16
Default Re: Richardson number for swirling flow
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A. Hellsten has proposed a definition that can be applied to any geometry. You can see the paper

Some Improvements in Menter's K-Omega SST Turbulence Model, Antti Hellsten, 29th AIAA Fluid Dynamics Conference, AIAA-98-2554
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Old   March 19, 2002, 08:57
Default Re: Richardson number for swirling flow
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Any expressions available for the prssure drop in a recirculating flow is requested to be communicated.Thanks.
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