Lattice Boltzmann Simulation of Non-newtonian Fluid Flow in a Lid Driven Cavity
نویسنده
چکیده
Lattice Boltzmann Method (LBM) is used to simulate the lid driven cavity flow to explore the mechanism of non-Newtonian fluid flow. The power law model is used to represent the class of non-Newtonian fluids (shear-thinning and shear-thickening fluids) by considering a range of 0.8 to 1.6. Investigation is carried out to study the influence of power law index and Reynolds number on the variation of velocity profiles and streamlines plots. Velocity profiles and the streamline patterns for various values of power law index at Reynolds numbers ranging 100 to 3200 are presented. Half way bounce back boundary conditions are employed in the numerical method. The LBM code is validated against the results taken from the published sources for flow in lid driven cavity and the results show fine agreement with established theory and the rheological behavior of the fluids.
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