On Turbulent Contribution to Frictional Drag in Wall-Bounded Turbulent Flow

作     者：李凤臣 KAWAGUCHI Yasuo HISHIDA Koichi OSHIMA Marie 

作者机构：School of Energy Science and Engineering Harbin Institute of Technology Harbin 150001 Institute of Industrial Science The University of Tokyo Komaba 4-6-1 Meguro-ku Tokyo 153-8505 Japan Department of Mechanical Engineering Tokyo University of Science Yamazaki 2641 Noda Chiba 278-8510 Japan Department of System Design Engineering Keio University Yokohama 223-8522 Japan 

出 版 物：《Chinese Physics Letters》 (中国物理快报（英文版）)

年 卷 期：2006年第23卷第5期

页      面：1226-1229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] 0805[工学-材料科学与工程（可授工学、理学学位）] 0704[理学-天文学] 0801[工学-力学（可授工学、理学学位）] 

基　　金：日本文部科学省项目 

主　　题：DIRECT NUMERICAL-SIMULATION PARTICLE IMAGE VELOCIMETRY LOW-REYNOLDS-NUMBER CHANNEL FLOW LAYER STRESS EXCHANGE PACKETS MOTIONS GROWTH 

摘      要：We propose a simple model for turbulent contribution to the frictional drag in a wall-bounded turbulent flow based on the characteristic parameters of turbulent bursting events, it is verified on water and drag-reducing surfactant solution flows investigated by particle image velocimetry in experiments. It is obtained that the turbulent contribution to the skin friction factor is linearly proportional to the product of the spatial frequency and strength of turbulent bursts originated from the wall.