Numerical study of turbulent flows over wavy boundaries |
| |
Authors: | Zhaoshun Zhang Zhan Cheng |
| |
Affiliation: | (1) Department of Engineering Tsinghua University, Tsinghua, China |
| |
Abstract: | The fully developed turbulent flows over wavy boundaries are investigated by means of thek-ε model. Predicted flow characteristics over rigid wavy walls are in good agreement with the vailable experimental data. Moreover drag reduction has been found in a 2-dimensional channel with periodical wavy walls. The energy input from turbulent wind to regular waves is also studied in the paper by the same turbulence model with carefully posed boundary conditions at wind-wave interface. Better agreement has been obtained in the predication of the growth rates of wind waves as compared with the previous theoretical and numerical results. The project supported by the National Natural Science Foundation of China. |
| |
Keywords: | turbulent flows wind wave generation drag reduction |
本文献已被 SpringerLink 等数据库收录! |