【摘要】 海洋湍流模型研究自二十世纪 70年代中发展至今 ,在海洋动力学研究中 ,特别是关于混合 /层化研究中广泛应用 ,近年来由于认识到湍流对海洋生物过程的重要影响 ,对海洋湍流的客观描述更加关注。文中详细介绍了几个主要海洋动力学模型中的湍流封闭模式 ,如 HAMSOM中的Prandtl混合长模型、Johns模式中的 k-方程模型、POM中的 k- kl模型、水动力学中常用的 k-ε模型等等 ,介绍了海洋湍流模型的应用。对于湍流模型的使用提出针对具体问题选择的原则 ,复杂的并非最优的。更多还原

【Abstract】 Turbulence closure model is widely used in ocean hydrodynamics, especially in the study of mixing and stratification. Turbulence has an important effect on ocean biological processes. More and more attention has been focused on the turbulence model. Prandtl’s Mixing Length Hypotheses are applied in HAMSOM. K Equation is used in John’s research on tide and storm surge. A complicated k kl model is used in POM which is valid in the study of biroclinic processes. The basic concepts of turbulence closure model, closure models and their applications in the hydrodynamics of the ocean are introduced in this paper. The characters of these models widely used in ordinary hydrodynamic simulations are analyzed. A turbulence closure model and its boundary condition should be chosen according to the researching problems and the model should be calibrated by observation and experiments.更多还原