The damping of gravity water-waves due to percolation

Philip L.F. Liu, Robert A. Dalrymple

研究成果: Article同行評審

41 引文 斯高帕斯(Scopus)

摘要

The problem of viscous damping of gravity water-waves over a permeable sea bed is re-examined. A generalized Darcy's law (Dagan, 1979) is adopted to describe the oscillatory flow motions in the sea bed. Boundary layers are required in the sea bed adjacent to boundaries due to the discontinuity of medium property. A boundary-layer-Poincaré method is used to derive the damping rate and to obtain in addition the small wave number shift due to viscosity. The damping rate is shown to increase with permeability for small permeability and then to decrease with permeability for large permeability. Laboratory results (Savage, 1953) are used to verify the theory.

原文English
頁(從 - 到)33-49
頁數17
期刊Coastal Engineering
8
發行號1
DOIs
出版狀態Published - 1984 2月

All Science Journal Classification (ASJC) codes

  • 環境工程
  • 海洋工程

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