Numerical Simulation of Vertical Forced Plume in a Crossflow of Stably Stratified Fluid

[+] Author and Article Information
Robert R. Hwang

Institute of Physics, Academia Sinaca, Taipei

T. P. Chiang

Department of Naval Architecture and Ocean Engineering, National Taiwan University, Taipei

J. Fluids Eng 117(4), 696-705 (Dec 01, 1995) (10 pages) doi:10.1115/1.2817325 History: Received April 13, 1994; Revised May 31, 1995; Online December 04, 2007


In this study, an investigation using a three-dimensional numerical model, which treats conservation of mass, momentum, and salinity simultaneously, was carried out to study the character of a vertical forced plume in a uniform cross-stream of stably linear stratified environment. A k-ε turbulence model was used to simulate the turbulent phenomena and close the solving problem. The performance of the three-dimensional model is evaluated by comparison of the numerical results with some available experimental measurements. Results indicate that the numerical computation simulates satisfactorily the plume behavior in a stratified crossflow. The secondary vortex pairs in the cross section induced by the primary one change as the plume flows downstream. This denotes the transformation of entrainment mechanism in stratified crossflow.

Copyright © 1995 by The American Society of Mechanical Engineers
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