MESOSCOPIC SIMULATION OF INCOMPRESSIBLE FLUID FLOW IN POROUS MEDIA

M.Y.Gokhale, Ignatius Fernandes

Abstract: Lattice Boltzmann method is used to simulate cavity driven fluid flow in porous media. A square cavity is considered with the top lid moving with uniform velocity and other sides kept stationary. Simulation is carried out for values of Darcy number ranging from 10-6 to10-2 at Reynolds number 10 and 100. Influence of Darcy number and Reynolds number is investigated on velocity profiles and the streamline plots. Half-way bounce back boundary conditions are employed in the numerical simulation. The numerical code is first verified with the results available in the literature and then used to simulate the Newtonian fluid flow in porous media. The Darcy number and the Reynolds number were observed to have great influence on the flow properties and the location of the primary vortex. Simulation was carried out for a 100?100 mesh grid and a fine agreement is established theories in incompressible fluid flow

Keywords: Lattice Boltzmann method, incompressible flow, porous media

DOI: https://doi.org/10.15623/ijret.2014.0302006