Title of article :
Simulation and Comparison of Non-Newtonian Fluid Models Using LBM in a Cavity
Author/Authors :
Mehdizadeh ، Alireza Department of Mechanical Engineering - University of Kashan , Rahmati ، AhmadReza Department of Mechanical Engineering - university of Kashan , Sheikhzadeh ، GhanbarAli Department of Mechanical Engineering - kashan university
From page :
115
To page :
125
Abstract :
In this paper, simulation of nonNewtonian fluid flow in a two dimension lid driven cavity is investigated. In this simulation Lattice Boltzmann method is used to solve computational fluid dynamics equations numerically. The particular approach of this research is to simulate nonNewtonian fluid flow by Sisko and Hershel Bulkley extended models for the first time beside other nonNewtonian models, by means of Lattice Boltzmann technique. The results of different models including x and y velocity profiles and streamlines were presented. Then the simulation results of different nonNewtonian fluid flow by Sisko and Hershel Bulkley extended models have been compared with Power Law, Herschel Bulkley and Bingham plastic models. Also, the effect of the Reynolds Number and Power Law parameter (n) on the velocity profiles were studied. Increase of n parameter and Reynolds number leads to moving center of main vortex toward center of cavity. By increasing the parameter n, the maximum value of velocity increases and this indicates while n parameter is increased, vortex strength is excessed
Keywords :
Lattice Boltzmann method , Power law , Herschel bulkley , Bingham plastic , Sisko , Herschel Bulkley Extended
Journal title :
Journal of Heat and Mass Transfer Research
Journal title :
Journal of Heat and Mass Transfer Research
Record number :
2629133
Link To Document :
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