Richardson number for swirling flow
 

Dear colleagues.

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

Thank you.

Victor.

Re: Richardson number for swirling flow
 

Beer,J.M.-Chigier,N.A.: Laminarization of Turbulent Flames in Rotating Environments; Comb.&Flame, Vol.16, 1971, pp.39-45

or

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]

Re: Richardson number for swirling flow
 

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

Re: Richardson number for swirling flow
 

Any expressions available for the prssure drop in a recirculating flow is requested to be communicated.Thanks.