Numerical simulation of vertical forced plume in a crossflow of stably stratified fluid

Journal Article · Fri Dec 01 04:00:00 EST 1995 · Journal of Fluids Engineering

DOI:https://doi.org/10.1115/1.2817325· OSTI ID:194278

Hwang, R R ^[1]; Chiang, T P ^[2]

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1. Academia Sinica, Taipei (Taiwan, Province of China). Inst. of Physics
2. National Taiwan Univ., Taipei (Taiwan, Province of China). Dept. of Naval Architecture and Ocean Engineering

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 {kappa}-{epsilon} 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.

• Sponsoring Organization: USDOE
• OSTI ID: 194278
• Journal Information: Journal of Fluids Engineering, Journal Name: Journal of Fluids Engineering Journal Issue: 4 Vol. 117; ISSN JFEGA4; ISSN 0098-2202
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
CHIMNEYS
COMPUTERIZED SIMULATION
CROSSFLOW SYSTEMS
FLOW MODELS
JETS
NATURAL CONVECTION
PLUMES
TURBULENT FLOW