𝔖 Bobbio Scriptorium
✦   LIBER   ✦

On the net forces produced by surface-mounted obstacles

✍ Scribed by P. J. Mason; R. I. Sykes

Publisher
John Wiley and Sons
Year
1979
Tongue
English
Weight
891 KB
Volume
105
Category
Article
ISSN
0035-9009

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✦ Synopsis

Abstract

Numerical calculations of the forces involved in Ekman layer flow past three‐dimensional topography are presented. The forces are obtained from finite‐difference solutions of the Navier‐Stokes equations. The results confirm expectations from earlier two‐dimensional work that many flows produce no significant change in total momentum transfer between the fluid and the surface. Only flows generating some form of trailing vortex system appear capable of changing the total force on the lower boundary. The effects of Ekman boundary layer instabilities, and their interaction with topography, are also discussed.

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