Record Details

Mixing of coflowing jets in rivers

DSpace at IIT Bombay

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Field Value
 
Title Mixing of coflowing jets in rivers
 
Creator PANI, BS
LEE, JHW
LAI, ACH
 
Subject coflowing jets
reichardt's hypothesis
superposition method
jet dilution
multiple jets
 
Description Domestic and industrial wastewater effluents are often discharged into rivers after some treatment. An effective way of rapidly reducing effluent concentrations to acceptable levels within a mixing zone is to discharge the effluent in the form of multiple jets into a coflowing river flow at some distance from the riverbank. An accurate and efficient predictive model of multiple coflowing jets is required for impact and risk assessment of environmental discharges into rivers. In the present study, a new semi-analytical model for multiple coflowing jets is developed using the method of superposition based on Reichardt's hypothesis. Jet excess momentum fluxes are hypothesized to be Gaussian and additive, which is supported by both theory and experimental observations. The predicted jet mixing characteristics of multiple coflowing jets from the present model compares favorably with basic experimental data. The present model is able to predict the entire concentration field, and thus mixing zone, downstream of an effluent discharge, and has potential application in river discharges.
 
Publisher TSINGHUA UNIVERSITY PRESS
 
Date 2011-10-24T09:16:54Z
2011-12-15T09:11:33Z
2011-10-24T09:16:54Z
2011-12-15T09:11:33Z
2009
 
Type Proceedings Paper
 
Identifier ADVANCES IN WATER RESOURCES AND HYDRAULIC ENGINEERING, VOLS 1-6,651-655
978-7-302-18662-5
http://dx.doi.org/10.1007/978-3-540-89465-0_114
http://dspace.library.iitb.ac.in/xmlui/handle/10054/15374
http://hdl.handle.net/100/2141
 
Source 16th Asia and Pacific Division Congress of the International Association of Hydraulic Engineering and Research/3rd IAHR International Symposium on Hydraulic Structures,Nanjing, PEOPLES R CHINA,OCT 20-23, 2008
 
Language English