波流耦合作用的缓坡方程数学模型研究

作者：白志刚 周锡礽

单位：天津大学建筑工程学院 天津大学建筑工程学院 天津　300072   天津　300072

关键词：波流耦合作用  缓坡方程  裂流

分类号：TV139.2

出版年,卷(期):页码：2003,27(4):16-18

摘要：

依据Kirby和Dalrymple提出的既适用于浅水又适用于深水的波浪非线性弥散关系,建立一种包含折、绕射,浅水变形以及破碎的波流联合作用的缓坡方程模式,有效地解决波浪与流速的耦合作用。通过Berkhoff经典实验检验了该模式的正确性,得出了令人信服的结果,并将该模式应用到一裂流模型。本模式可用于模拟任意不规则海底的波流耦合作用场,并可考虑近岸波浪浅水变形、折射、绕射和能量耗散的影响。

According to the wave nonlinear dispersion relationship proposed by Kirby and Dalrymple,which suits for both shallow and deep waters. The present paper establishes a mildslope model combining current by wave with effects of refraction,diffraction,dissipation due to wave breaking.The model is verified by comparison with Berkhoff classical experience results,and applied to a ripple research.Not only can wavecurrent field at arbitrary sea topography be calculated,but also the effects of refraction,diffraction and even energy dissipation can be considered.

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参考文献：

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