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Separation effects in Ekman layer flow over ridges
Author(s) -
Mason P. J.,
Sykes R. I.
Publication year - 1979
Publication title -
quarterly journal of the royal meteorological society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.744
H-Index - 143
eISSN - 1477-870X
pISSN - 0035-9009
DOI - 10.1002/qj.49710544309
Subject(s) - ekman layer , boundary layer , mechanics , geology , flow (mathematics) , ridge , rossby number , ekman number , deck , physics , geometry , meteorology , mathematics , turbulence , oceanography , paleontology
Two‐dimensional numerical integrations of the Navier‐Stokes equations for flow of an Ekman layer ove a ridge on a range of length scales corresponding to large Rossby numbers are presented. The results are compared, where appropriate, with numerical solutions of the triple deck equations of boundary layer flow For steady flow agreement is good and, as predicted by triple deck theory, the net change in total force or the domain is small for homogeneous flow. An increase in force arises either through gravity wave radiation when triple deck predictions agree well, or when the ridge is sufficiently steep to give eddy shedding.