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Evolution of Near and Intermediate Field in A Negatively Buoyant Jet

Bashitialshaaer, Raed LU and Persson, Kenneth M LU (2011) 1st International Conference on Desalination and Environment: A water Summit In 1st International Conference on Desalination and Environment: A water Summit-Abu Dhabi, UAE
Abstract
The purpose of this study is to explore the behavior of a dense jet and bottom plume, composed of brine water of heavier effluent into a quiescent homogeneous ambient, discharged into a receiving body of lighter fresh water (tank). This situation is common in connection with freshwater production from sea water (desalination), which produces a brine waste stream, usually discharged back into sea water. In this study, a mathematical model was developed to simulate the jet and plume behavior in order to determine the optimum discharge conditions for different scenarios. The model was divided into two sub-models, describing respectively the near and intermediate field properties of the discharge for different inclinations and bottom slope.... (More)
The purpose of this study is to explore the behavior of a dense jet and bottom plume, composed of brine water of heavier effluent into a quiescent homogeneous ambient, discharged into a receiving body of lighter fresh water (tank). This situation is common in connection with freshwater production from sea water (desalination), which produces a brine waste stream, usually discharged back into sea water. In this study, a mathematical model was developed to simulate the jet and plume behavior in order to determine the optimum discharge conditions for different scenarios. The model was divided into two sub-models, describing respectively the near and intermediate field properties of the discharge for different inclinations and bottom slope. The lateral spreading and electrical conductivity was also described through a generalization of measured data.

The predictions of the model were compared with experimental data collected in lab as well as results obtained with a commercial software CORMIX. A Matlab code was also developed describing the lateral spreading and centerline dilution of buoyant jet and plumes for near and intermediate field was developed. The model produces results in acceptable agreement with data and observations, even though some improvements should be made in order to give the correct weight to the bottom slope parameter and to reduce the need for user calibration.

This study has limited result for only 16% bottom slope and 30 degrees inclination. Concentration was improved with the bottom slope by 10% than the horizontal bottoms and improved by about 40% with bottom slope together with inclination of 30 degrees. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
Tank tilting, Negatively buoyant, CORMIX, MATLAB, Desalination, Concentration
in
1st International Conference on Desalination and Environment: A water Summit-Abu Dhabi, UAE
editor
Watson, Fiona and
pages
18 pages
publisher
Elsevier
conference name
1st International Conference on Desalination and Environment: A water Summit
language
English
LU publication?
yes
id
be521bcd-51ca-4c17-aca2-5be5b9011fd9 (old id 2064297)
date added to LUP
2011-08-18 13:08:39
date last changed
2016-09-23 15:15:44
@inproceedings{be521bcd-51ca-4c17-aca2-5be5b9011fd9,
  abstract     = {The purpose of this study is to explore the behavior of a dense jet and bottom plume, composed of brine water of heavier effluent into a quiescent homogeneous ambient, discharged into a receiving body of lighter fresh water (tank). This situation is common in connection with freshwater production from sea water (desalination), which produces a brine waste stream, usually discharged back into sea water. In this study, a mathematical model was developed to simulate the jet and plume behavior in order to determine the optimum discharge conditions for different scenarios. The model was divided into two sub-models, describing respectively the near and intermediate field properties of the discharge for different inclinations and bottom slope. The lateral spreading and electrical conductivity was also described through a generalization of measured data.<br/><br>
The predictions of the model were compared with experimental data collected in lab as well as results obtained with a commercial software CORMIX. A Matlab code was also developed describing the lateral spreading and centerline dilution of buoyant jet and plumes for near and intermediate field was developed. The model produces results in acceptable agreement with data and observations, even though some improvements should be made in order to give the correct weight to the bottom slope parameter and to reduce the need for user calibration. <br/><br>
This study has limited result for only 16% bottom slope and 30 degrees inclination. Concentration was improved with the bottom slope by 10% than the horizontal bottoms and improved by about 40% with bottom slope together with inclination of 30 degrees.},
  author       = {Bashitialshaaer, Raed and Persson, Kenneth M},
  booktitle    = {1st International Conference on Desalination and Environment: A water Summit-Abu Dhabi, UAE},
  editor       = {Watson, Fiona},
  keyword      = {Tank tilting,Negatively buoyant,CORMIX,MATLAB,Desalination,Concentration},
  language     = {eng},
  pages        = {18},
  publisher    = {Elsevier},
  title        = {Evolution of Near and Intermediate Field in A Negatively Buoyant Jet},
  year         = {2011},
}