NUMERICAL SIMULATION OF TURBULENT WAVE BOUNDARY LAYERS

Proceedings of the International Conference on Coastal Engineering

J.H. Trowbridge¹  C.N. Kanetkar²  N.T. Wu¹ 

[1] Dept. of Civil Engrg. , University of Delaware;Central Water and Power Research Station

关键词: numerical simulation;    turbulent wave;    boundary layer;   

DOI  :  10.9753/icce.v20.%p

学科分类：建筑学

来源: Coastal Engineering Research Council

【 摘 要 】

This paper reports numerical computations of fully rough turbulent boundary layers produced by first and second order Stokes waves. The computations are based on a mixing length turbulence closure and on a slightly more sophisticated turbulent kinetic energy closure. The first order results compare well with existing laboratory results. Reversal of the second order steady streaming under relatively long waves, which has been predicted analytically, is also predicted in the numerical results, The steady second order velocity field is found to become fully established only after a development time on the order of a few hundred wave periods. Both the first and second order results indicate that advection and diffusion of turbulent kinetic energy play a minor role in determining the Reynolds averaged velocity field.

【 授权许可】

Unknown