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| 用混合紊流模型求解沿岸流和离岸流 | |
| 引用本文： | 金忠青. 用混合紊流模型求解沿岸流和离岸流[J]. 河海大学学报(自然科学版), 1988, 0(2) |
| 作者姓名： | 金忠青 |
| 作者单位： | 河海大学水力发电工程系 |
| 摘 要： | 本文从水深平均的纳维埃-斯托克斯方程出发,以Longuet-Higgins模型为基础,引入波浪驱动力、紊动粘性和底部切应力,并适当调整紊动粘性系数的分布和底部切应力,构成混合紊流模型,以求解港池中的沿岸流和离岸流.数值计算结果与实验资料符合甚好,表明本文提出的混合紊流模型是求解近岸流的行之有效的方法、 |
| 关 键 词： | 纳维埃-斯托克斯方程 紊流模型 沿岸流 离岸流 数值计算方法 |
A Hybrid Turbulence Model for Numerical Solution of Longshore Current and Rip Current |
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| Jin Zhongqing. A Hybrid Turbulence Model for Numerical Solution of Longshore Current and Rip Current[J]. Journal of Hohai University (Natural Sciences ), 1988, 0(2) | |
| Authors: | Jin Zhongqing |
| Affiliation: | Jin Zhongqing |
| Abstract: | Presented in this paper is a hybrid turbulence model for numerical solution of longshore current and rip current in a basin. Starting from the depth-averaged Navier-Stokes equations, employing concepts of wave thrust, turbulent viscosity and bottom shear, and taking the Longuet-Higgins model as the basis, the hybrid model is established mainly by adjusting the distribution of turbulent viscosity and bottom shear. Good agreement between numerical results and experimental data has been achieved, which implies that the hybrid turbulence model is applicable to offshore current problems. |
| Keywords: | Navier-Stokes equations turbulence model coast current rip current numerical method |
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