2008
DOI: 10.1007/s10652-008-9108-1
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k-ε Predictions of the initial mixing of desalination discharges

Abstract: Predictions from a k-ε model are compared with recently acquired experimental data from inclined negatively buoyant discharges. The k-ε model is part of a standard computational fluid dynamics package (CFX). Two approaches are taken when implementing the model. One involves using an essentially standard form of the model to predict flow behaviour. The other approach involves calibrating the model, through adjustment of the turbulent Schmidt number in the tracer transport equation, to achieve reasonable predict… Show more

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Cited by 55 publications
(29 citation statements)
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References 12 publications
(20 reference statements)
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“…A number of studies about the turbulent Schmidt number have dealt with the simulation of flow and tracer transport in open channels [22][23][24][25], while others have addressed those issues in contact or water tanks [26][27][28][29][30][31][32][33][34][35][36], inclined negatively-buoyant discharges [37], sediment-laden open channel flows [38][39][40][41][42][43][44][45][46][47][48], density stratified turbulence [49,50] and T-junction mixing experiments [51] ( Table 2). The terms "Exp" and "Num" mean the application of experimental and numerical methods, respectively, in each study.…”
Section: Water Systemsmentioning
confidence: 99%
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“…A number of studies about the turbulent Schmidt number have dealt with the simulation of flow and tracer transport in open channels [22][23][24][25], while others have addressed those issues in contact or water tanks [26][27][28][29][30][31][32][33][34][35][36], inclined negatively-buoyant discharges [37], sediment-laden open channel flows [38][39][40][41][42][43][44][45][46][47][48], density stratified turbulence [49,50] and T-junction mixing experiments [51] ( Table 2). The terms "Exp" and "Num" mean the application of experimental and numerical methods, respectively, in each study.…”
Section: Water Systemsmentioning
confidence: 99%
“…Oliver et al [37] applied the standard k-ε model to achieve reasonable predictions for positively-buoyant vertical discharges before using it to simulate inclined negatively-buoyant discharges. The numerical results were compared with experimental data.…”
Section: Water Systemsmentioning
confidence: 99%
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“…They employed the software CFX with the Reynolds Averaged Navier-Stokes (RANS) approach and k-e turbulence closure for the simulations. Oliver et al [14] conducted a more detailed numerical investigation also using the RANS approach with k-e turbulence closure. They compared their numerical results with those obtained from previous integral models and experimental observations, and concluded that the k-e predictions provided a more accurate representation of the mixing processes compared to the integral models.…”
Section: Introductionmentioning
confidence: 99%
“…Bombardelli et al, 2004, studied three-dimensional gravity currents using CFDs (Computational Fluid Mechanics) models, capturing small-scale turbulent phenomena, and comparing the results obtained using different commercial software. Oliver et al, 2008, discussed the mixing of a hypersaline plume with ambient fluid using a closure model for turbulent terms. Joongcheol Paik et al, 2009, used a three dimensional RANS equations model to simulate a two-dimensional plume, comparing experimental data with numerical results using different turbulence closure models.…”
Section: Research Related To Brine Discharge Behaviour and Modelling:mentioning
confidence: 99%