Roshko number
In fluid mechanics, the Roshko number is a dimensionless number describing oscillating flow mechanisms. It is named after the American Professor of Aeronautics Anatol Roshko. It is defined as
\[ \mathit{Ro} = {St} {Re} = {f L^{2}\over \nu} \]
where Ro is the dimensionless Roshko number, St is the dimensionless Strouhal number, Re is the Reynolds number, f is the frequency of vortex shedding, L is the characteristic length (for example hydraulic diameter) and ν is the kinematic viscosity of the fluid.
References
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External links
- On the Development of Turbulent Wakes From Vortex Streets PhD. Thesis by Anatol Roshko (hosted on Caltech Site).