Research Article
Jun 1976
Experimental Study of Turbulent Stratified Shearing Flow
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VIEW THE REPLYAuthors: Vincent H. Chu, M.ASCE, and Madanlal R. VanvariAuthor Affiliations
Publication: Journal of the Hydraulics Division
Volume 102, Issue 6
Abstract
Two-dimensional turbulent stratified shearing flow was simulated in the laboratory by letting fresh water flow over the surface of an otherwise stationary body of saline water. The behavior of the turbulent surface layer was observed to depend on upstream condition as well as downstream condition in a manner similar to free surface flow in open channel. Velocity and concentration were measured by hot-film anemometer and conductivity probe in a region upstream of a density jump where flow is jet-like and is supercritical. The velocity scale for turbulent intensity, relative to the mean velocity scale, was found to diminish to zero at an overall Richardson number approximately equal to 0.15. Turbulent entrainment velocity, obtained from numerical integration of the mean velocity profiles, was found to be approximately proportional to the velocity scale of longitudinal turbulent intensity.
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Published In
Journal of the Hydraulics Division
Volume 102 • Issue 6 • June 1976
Pages: 691 - 706
Copyright
© 1976 American Society of Civil Engineers.
History
Published in print: Jun 1976
Published online: Feb 3, 2021
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Vincent H. Chu, M.ASCE
Asst. Prof., Dept. of Civ. Engrg. and Applied Mechanics. McGill Univ., Montreal, Canada
Madanlal R. Vanvari
Grad. Student. Dept. of Civ. Engrg. and Applied Mechanics, McGill Univ., Montreal, Canada
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