Boundary layer flow over gentle curvilinear topography with a sudden change in surface roughness | Zendy

Lo A. K. | Zendy; McBean G. A. | Zendy

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Boundary layer flow over gentle curvilinear topography with a sudden change in surface roughness

Author(s) -

Lo A. K.,

McBean G. A.

Publication year - 1977

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.49710343514

Subject(s) - curvilinear coordinates , elevation (ballistics) , boundary layer , geology , displacement (psychology) , flow (mathematics) , surface finish , geometry , boundary (topology) , mechanics , geodesy , mathematics , physics , materials science , mathematical analysis , psychology , composite material , psychotherapist

A new approach using a curvilinear coordinate system that enables incorporation of a change of roughness with a zero‐plane displacement or elevation change in a boundary‐layer model is presented. the effect of topography together with the rapid development of an internal boundary layer produce vertical wind speeds that reach a maximum value of about 25 % of the horizontal component. It is found that perturbations due to a smooth‐to‐rough transition together with an increase of elevation are stronger than those generated from a rough‐to‐smooth transition with a decrease of elevation.

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