Department of Mechanical Engineering,Sharif University of Technology
Abstract
Abstract. The accuracy of Reynolds Averaged Navier-Stokes (RANS) turbulence models to predict
the behavior of 2-D density currents has been examined. In this work, a steady density current is simulated
by the k ???? ", k ???? " RNG, two-layer k ???? " and modi ed 2 ???? f model, all of which are compared with the
experimental data. Density currents, with a uniform velocity and concentration, enter a channel via a
sluice gate into a lighter ambient
uid and move forward down-slope. The eddy-viscosity concept cannot
accurately simulate this
ow because of two stress production structures found within it. Results show
that all isotropic models have a weak outcome on this current, but by improving the ability of the models,
the results will improve.
Firoozabadi,B and Mehdizadeh,A . (2009). Simulation of a Density Current Turbulent Flow Employing Di erent RANS Models: A Comparison Study. (e2990). Scientia Iranica, 16(1), e2990
MLA
Firoozabadi,B , and Mehdizadeh,A . "Simulation of a Density Current Turbulent Flow Employing Di erent RANS Models: A Comparison Study" .e2990 , Scientia Iranica, 16, 1, 2009, e2990.
HARVARD
Firoozabadi B, Mehdizadeh A. (2009). 'Simulation of a Density Current Turbulent Flow Employing Di erent RANS Models: A Comparison Study', Scientia Iranica, 16(1), e2990.
CHICAGO
B Firoozabadi and A Mehdizadeh, "Simulation of a Density Current Turbulent Flow Employing Di erent RANS Models: A Comparison Study," Scientia Iranica, 16 1 (2009): e2990,
VANCOUVER
Firoozabadi B, Mehdizadeh A. Simulation of a Density Current Turbulent Flow Employing Di erent RANS Models: A Comparison Study. Scientia Iranica. 2009;16(1):e2990.
