首页 | 本学科首页   官方微博 | 高级检索  
     检索      


An experimental study of a turbulent shear layer at a clean and contaminated free-surface
Authors:Email author" target="_blank">Amy?Warncke?LangEmail author  Carlos?E?Manglano
Institution:(1) Department of Aerospace and Mechanical Engineering, Parks College of Engineering and Aviation, Saint Louis University, 3450 Lindell Blvd., St. Louis, MO 63103, USA
Abstract:An experimental study was performed to measure the flow properties of a vertically-orientated shear layer in the vicinity of a free-surface. The effect of surface contamination on the near surface flow field was also determined. Digital Particle Image Velocimetry was used to measure instantaneous and averaged velocity, vorticity, and Reynolds stresses. Results show that the presence of surfactants can cause directional shifts of the shear layer, as well as an overall damping of the turbulence in the vicinity of the free-surface, except in the vicinity of a Reynolds ridge where an increase in Reynolds stress was observed.
Keywords:Turbulent shear layer  Surfactants  Free-surface
本文献已被 SpringerLink 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号