Experiments in Fluids

, Volume 36, Issue 3, pp 384–392

An experimental study of a turbulent shear layer at a clean and contaminated free-surface

Original

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 

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Copyright information

© Springer-Verlag 2004

Authors and Affiliations

  1. 1.Department of Aerospace and Mechanical Engineering, Parks College of Engineering and AviationSaint Louis UniversitySt. LouisUSA

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