Jet Integral–Particle Tracking Hybrid Model for Single Buoyant Jets
Publication: Journal of Hydraulic Engineering
Volume 128, Issue 8
Abstract
The mixing processes of a buoyant jet discharged from a submerged single port were analyzed using a three-dimensional hybrid model. In the proposed hybrid model, the initial mixing was simulated by a jet integral method, and the advection-diffusion process was simulated using a particle tracking method. Laboratory experiments were conducted for various flow conditions in order to verify the proposed model. The simulated horizontal concentration distributions and minimum dilutions at the water surface were generally in agreement with the observations. The vertical concentration distributions for coflowing jets were well simulated by both the jet integral and the particle tracking methods of the hybrid model. Trajectories simulated by the jet integral module of the hybrid model were in agreement with the measured trajectories when the velocity ratio was low. For cases where the velocity ratio was high, the hybrid model in which the vortex-pair distribution was used gave better results than the hybrid model with only Gaussian velocity distribution.
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Information
Published In
Journal of Hydraulic Engineering
Volume 128 • Issue 8 • August 2002
Pages: 753 - 760
Copyright
Copyright © 2002 American Society of Civil Engineers.
History
Received: Mar 15, 2001
Accepted: Jan 28, 2002
Published online: Jul 15, 2002
Published in print: Aug 2002
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