Numerical study on the effects of progressive gravity waves on turbulence

作     者：Anqing(Elliott) XUAN Bingqing DENG Tao CAO Lian SHEN 

作者机构：Department of Mechanical Engineering and Saint Anthony Falls Laboratory University of Minnesota 

出 版 物：《Journal of Hydrodynamics》 (水动力学研究与进展B辑（英文版）)

年 卷 期：2016年第28卷第6期

页      面：1011-1017页

核心收录：

学科分类：080704[工学-流体机械及工程] 080103[工学-流体力学] 08[工学] 0807[工学-动力工程及工程热物理] 0801[工学-力学（可授工学、理学学位）] 

基　　金：supported by the NSF (Grant Nos. 1341062, 1341063 and 1605080) the ONR CASPER MURI project 

主　　题：wave-ocean interaction Langmuir circulation wave-wind interaction numerical simulation 

摘      要：The wind-wave-ocean system, which contains complex interactive processes, is of great importance for the momentum, heat and mass transport in the atmosphere and ocean and at their interface. In this work, we perform wave-coupled phase-resolved numerical simulations to investigate the effect of progressive gravity waves on wind and ocean turbulence. Initially homogeneous turbulence under a finite-amplitude monochromatic surface wave is simulated to reveal how the wave influences the subsurface turbulence. For the interaction between wind-driven waves and shear turbulence in the ocean, new wave-phase-resolved simulation approaches are developed to capture Langmuir cells. Lastly, wind turbulence over one and two progressive waves is simulated to elucidate the dynamics of turbulence coherent structures impacted by surface waves for improved understanding of wind-wave growth mechanism.