The effects of vegetation density on wave propagation through emergent communities

研究成果: Conference contribution

抜粋

In this paper, we develop an analytic model for wave propagation through an emergent vegetation community to investigate the effects of vegetation density on the wave dynamics. The model is based on the mass and momentum conservation equations with drag and inertia forces associated with the vegetation stems. After normalizing the basic equations and the corresponding boundary conditions by using representative physical variables of an incident wave, we obtain the dimensionless forms of the equations with governing parameters, including the dimensionless vegetation density, dimensionless wave amplitude of the incident wave, and the Froude number. By solving the equations with a linear approximation of the drag force, wave characteristics through the vegetation community, such as a decay rate of wave height, wavelength, celerity, group velocity, and wave energy, are derived explicitly with respect to the dimensionless governing parameters. The result of sensitivity analysis shows that the drag force is more important for wave attenuation in the vegetation community compared with the inertia force. It is also obvious that the decay rate of the wave height and energy, wave number, and celerity are much influenced by the vegetation population density as well as the wave amplitude of the incident wave.

元の言語English
ホスト出版物のタイトル31st IAHR Congress 2005
ホスト出版物のサブタイトルWater Engineering for the Future, Choices and Challenges
編集者Jun Byong-Ho, Il Lee Sang, Seo Il Won, Choi Gye-Woon
出版者Korea Water Resources Association
ページ3992-4001
ページ数10
ISBN(電子版)8987898245, 9788987898247
出版物ステータスPublished - 2005 1 1
外部発表Yes
イベント31st IAHR Congress 2005: Water Engineering for the Future, Choices and Challenges - Seoul, Korea, Republic of
継続期間: 2005 9 112005 9 16

出版物シリーズ

名前31st IAHR Congress 2005: Water Engineering for the Future, Choices and Challenges

Conference

Conference31st IAHR Congress 2005: Water Engineering for the Future, Choices and Challenges
Korea, Republic of
Seoul
期間05/9/1105/9/16

ASJC Scopus subject areas

  • Engineering (miscellaneous)
  • Environmental Science (miscellaneous)
  • Water Science and Technology

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  • これを引用

    Miyamoto, H. (2005). The effects of vegetation density on wave propagation through emergent communities. : J. Byong-Ho, I. L. Sang, S. I. Won, & C. Gye-Woon (版), 31st IAHR Congress 2005: Water Engineering for the Future, Choices and Challenges (pp. 3992-4001). (31st IAHR Congress 2005: Water Engineering for the Future, Choices and Challenges). Korea Water Resources Association.