科研之友
微信
新浪微博
Facebook
分享链接
摘要
A three-dimensional direct numerical simulation is applied to wind-driven turbulence with sheared gas-liquid interface, and turbulence structure in interfacial boundary layers on both gas and liquid sides and scalar transfer mechanism across the gas-liquid interface are investigated. In order to capture the deforming gas-liquid interface, an arbitrary Lagrangian-Eulerian formulation method is employed. The results show that fluid motions are strongly affected by wind waves with ripples on the liquid side. The wind waves and ripples enhance the turbulence on the liquid side. For the present wind speed of several meters per second, the scalar transfer across the sheared wavy gas-liquid interface is mainly controlled by the streamwise vortices related to the downward bursting motions on the liquid side.
- 出版日期2010
