[PDF] Top 20 Numerical Simulation over a backward facing step with OpenFOAM

... The circular cylinder cases where used to get a feeling for the setup of cases as well as to get familiar with OpenFOAM. The results found were, except in the LES case, quite good in comparison to the reference ... See full document

... processes. Numerical simulations are now recognized to be a part of the computer-aided engineering (CAE) spectrum of tools used extensively today in all industries, and its approach to modeling fluid flow ... See full document

... flow over dunes and ripples in rivers and oceans have been described by field and laboratory ex- periments (see Best, 2005, for an extensive review), as well as high-resolution, turbulence-resolving ... See full document

... layer is strongly dependent on the fraction of mass flow that is deflected upstream at the reattachment and supplies the recirculation. They also note the bifurca- tion that occurs in a symmetrically expanded channel ... See full document

... and numerical modelling of subcritical turbulent flow in an open channel with an inclined backward-facing ...The step with the inclination angle D = 20 o was placed in the water channel of the ... See full document

... accurate numerical convergence checks of two-dimensional ...a step is a well de ned unsteady ow which can serve in a convergence check of a two-dimensional numerical ...most ... See full document

... three-dimensional numerical simulation for flows over a backward-facing step at low Reynolds number in order to investigate the effects of the duct aspect ...Three-dimensional ... See full document

... inclined backward-facing step in a rectangular duct are presented to examine effects of baffle on flow, heat transfer and entropy generation distribu- ...the numerical solution of momentum and ... See full document

... direct numerical simulation – ...and numerical techniques which allow us to obtain leading (critical or near critical) eigenvalues and eigenmodes for the resulting large problems (Tuckerman & ... See full document

... the backward facing step and studied separating point and attachment point and vortex shedding mechanisms by changing aspect ratio for different types of ...the numerical simulation and ... See full document

... the backward-facing step flow throughout the laminar regime and found good agreement with the two- dimensional flows observed by Armaly et ...direct numerical simulations, primarily for the ... See full document

... present numerical computations related to the approaches presented in the previous ...sional backward facing ...the step and thus of the re-attachment length of laminar Navier-Stokes flow at ... See full document

... a numerical analysis of the thermodynamic second law is investigated for the laminar forced convection flow in a duct adjacent to two inclined backward facing ...of numerical results with the ... See full document

... A numerical investigation of entropy generation in laminar forced convection of gas flow over a backward facing step in a horizontal duct under bleeding condition is ...The ... See full document

... Abstract: The impact of the choice of inlet boundary condition treatment on the fluid flow is studied in this work. The correct representation of the turbulence at the inlet to the domain is essential for the accuracy of ... See full document

... this backward-facing step flow has received a lot of attention over the past decades, and it has also served as a test case for numerical ...as over airfoils and obstacles, such ... See full document

... flow over a BFS has been simulated in gambit ...the simulation (at high velocities, there is only a very slight variation in the reattachment length, or otherwise it is almost the ...the step height ... See full document

... Numerical simulations of 2D flow were performed on hybrid computational meshes constituted by quadrangles in 39 layers on the plate and wall, and by triangles in the remaining region. The non-dimensional thickness ... See full document

... The step angle in the microchannels has also been varied to predict the performance of sudden expansion zone for the higher Re range (say Re >5000) with different expansion ...Eddie Simulation approach ... See full document

... flow over back-ward facing step was simulated for investigation of the reattachment length by the experimental data of Eaton and Johnston ...of numerical modeling indicated that turbulence ... See full document