Application of a 'Radiation-type' boundary condition to the wave, porous bed problem.

C. R. McClain, L. J. Pietrafesa, N. E. Huang

研究成果: 雜誌貢獻期刊論文同行評審

7 引文 斯高帕斯(Scopus)

摘要

The problem of a small-amplitude wave propagating over a flat porous bed is reanalyzed subject to a bottom boundary condition which is of the form of a 'radiation-type' condition commonly encountered in heat conduction problems. The important physical quantities (velocity, velocity potential, streamfunction, shear stress and energy dissipation) have been derived and are presented, subject to natural condition. The bottom boundary layer is represented by the linearized Navier-Stokes equations under the usual boundary layer approximation. It is found that the boundary layer velocity distribution and shear stress can be greatly altered from impermeable bed predictions. Theoretical results for energy dissipation and shear stress are compared to existing data and are found to agree very well. The predictions of classical small-amplitude wave theory are not appreciably modified away from the boundary. (A)

原文???core.languages.en_GB???
頁(從 - 到)823-835
頁數13
期刊Journal of Physical Oceanography
7
發行號6 , Nov.1977
DOIs
出版狀態已出版 - 1977

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