My watch list
my.chemeurope.com  

my.chemeurope.com

With an accout for my.chemeurope.com you can always see everything at a glance – and you can configure your own website and individual newsletter.

  • My watch list
  • My saved searches
  • My saved topics
  • My newsletter
Register free of charge
Login  
eng  
DeutschEnglishFrançaisEspañol

Roshko number



In fluid mechanics, the Roshko number is a dimensionless number describing oscillating flow mechanisms. It is given 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.

See also

References

  • Olim, A. M., Riethmuller, M. L., and Gameiro da Silva, M. C., 2002, "Flowfield characterization in the wake of a low-velocity heated sphere anemometer", Exp. Fluids, 32, pp. 645-651.
  • Ormieres, D., and Provansal, M., 1999, “Transition to turbulence in the wake of a sphere”, Phys. Rev. Lett., 83, pp. 80-83.
v • d • e
Dimensionless numbers in fluid dynamics
Archimedes • Bagnold • Biot • Bond • Brinkman • Capillary • Damköhler • Dean • Deborah • Eckert • Ekman • Eötvös • Euler • Froude • Galilei • Grashof • Hagen • Knudsen • Laplace • Lewis • Mach • Magnetic Reynolds • Marangoni • Morton • Nusselt • Ohnesorge • Péclet • Prandtl • Rayleigh • Reynolds • Richardson • Roshko • Rossby• Ruark • Schmidt • Sherwood • Stanton • Stokes • Strouhal • Suratman • Taylor • Weber • Weissenberg • Womersley
 
This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Roshko_number". A list of authors is available in Wikipedia.
Your browser is not current. Microsoft Internet Explorer 6.0 does not support some functions on Chemie.DE