A numerical study has been done through an Al2O3–water in a double lid-driven  square  cavity with various  inclination  angles  and discrete heat sources. The top and right moving walls are at low temperature. Half of  the  left and bottom walls are  insulated and  the  temperatures of the other half are kept at high. A large number of simulations for a wide  range  of Richardson  number ...

In this work, numerical solutions of the two dimensional time dependent incompressible ow, in a driven cavity at high Reynolds number Re, are presented. At high Re, there is a controversy. Some studies predicted that the ow is steady, others found time dependent non-steady ow, either periodic or aperiodic. In this study, the driven lid cavity is successfully solved using a very ne grid mesh, fo...

Abstract   Due to restrictions on the choice of relaxation time in single relaxation time (SRT) models, simulation of flows is generally limited base on this method. In this paper, the SRT lattice Boltzmann equation was used to simulate lid driven cavity flow at different Reynolds numbers (100-5000) and three aspect ratios, K=1, 1.5 and 4. The point which is vital in convergence of this scheme ...

In the following paper, we discuss the exhaustive use and implementation of stabilization finite element methods for the resolution of the 3D time-dependent incompressible Navier–Stokes equations. The proposed method starts by the use of a finite element variational multiscale (VMS) method, which consists in here of a decomposition for both the velocity and the pressure fields into coarse/resol...

Both steady and unsteady turbulent mixed convection heat transfer in a 3D lid-driven enclosure, which has constant heat flux on the middle of bottom wall and with isothermal moving sidewalls, is reported in this paper for working fluid with Prandtl number Pr = 0.71. The other walls are adiabatic and stationary. The dimensionless parameters used in this research are Reynolds number, Re = 5000, 1...

The aim of this study is to investigate the effect of boundary conditions on the accuracy and stability of the numerical solution of fluid flows in the context of single relaxation time Lattice Boltzmann method (SRT-LBM). The fluid flows are simulated using regularized, no-slip, Zou-He and bounce back boundary conditions for straight surfaces in a lid driven cavity and the two-dimensional flow ...

0045-7930/$ see front matter 2010 Elsevier Ltd. A doi:10.1016/j.compfluid.2010.08.009 ⇑ Corresponding author. E-mail address: [email protected] (Yu. Feldma A parallel implementation of a fully pressure–velocity coupled multigrid solver based on analytical solution accelerated coupled line Gauss Seidel (ASA-CLGS) smoother with grid partitioning is carried out. The parallelized algorithm is...

Direct simulations of spherical particle motion in Bingham liquids Prashant, J. J. Derksen Chemical & Materials Engineering Department, University of Alberta, Edmonton, Alberta, T6G 2G6 Canada Submitted to Computers & Chemical Engineering, October 2009 Accepted: September 2010 Abstract The present work deals with the development of a direct simulation strategy for solving the motion of spherica...

The current research presents a numerical investigation of the mixed convection inside horizontal rectangular duct combined with an open trapezoidal cavity. region in bottom wall cavity is heated by using two discrete heat sources. cold airflow enters horizontally at fixed velocity and constant temperature. All other walls are adiabatic. Throughout this study, four various cases were investigat...