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Rossby Number

(Ro, Kibel Number)
(ratio of inertial to Coriolis force)

The Rossby Number (Ro) is a dimensionless number consisting of the ratio of internal to Coriolis Force. It is used in modeling Atmosphere and ocean dynamics. It is defined as:

Ro = U / Lf
  • U - characteristic velocity scale
  • L - characteristic length scale
  • f = 2 Ω sin φ - the Coriolis Frequency where Ω is the angular frequency of rotation and φ is the latitude.

The Convective Rossby Number, of interest in the study of convection in stars and planets and the resulting Dynamos, is the ratio of a buoyancy force to the Coriolis force.


(fluid dynamics,measure,atmosphere)
http://en.wikipedia.org/wiki/Rossby_number

Referenced by:
Rossby Radius of Deformation

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