[PDF] Top 20 Direct numerical simulation of turbulent flow over a backward facing step

... BFS flow has received significant attention from experimental ...the turbulent flow in a channel with a sudden expansion on either one or both ...separated turbulent flow: a three ... See full document

... Three-dimensional flow separations can be found in many engineering applications, ranging from low-speed liquid flows to high-speed aerodynamic ...and numerical studies have been carried out for a ... See full document

... Abstract. Turbulent non-isothermal fully developed channel flow with solid particles was investigated through Direct Numerical Simulation combined with the point-particle ... See full document

... or direct numerical simulations is complicated by several ...core flow, the variety of geometries used in previous studies (expansion ratio, aspect ratio, sidewalls, no sidewalls), different upstream ... 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 ... See full document

... and numerical studies about laminar convection flow over BFS in a duct by several ...The flow measurements covered a Reynolds number range between ...the step, were presented. Their ... See full document

... the turbulent flow of a viscoelastic liquid through an axisymmetric sudden expansion, how the flow is varying across the geometry for different fluids was described by ...the flow ... See full document

... of turbulent 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, ... See full document

... this direct linear stability analysis in analogy to the usage direct numerical simulation – ...and numerical techniques which allow us to obtain leading (critical or near critical) ... 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

... separated flow over a backward-facing step that generates a recirculation ...the step height and the channel ...the flow over a backward-facing ... See full document

... the simulation resources for reasonably accurate flow computations are ...of turbulent flows cannot be achieved using RANS ...mean flow, and the effect of turbulence on the mean flow ... See full document

... confronting step was performed by Abu-Mulaweh, Armaly, and Chen ...the flow and its relevant heat stream fields (Alawi, Azwadi, Kazi, & Abdolbaqi, 2016; Kherbeet et ...a direct result of a ... See full document

... a turbulent flow is studied, the structures observed are irregular both in space and time (see the structures in figures ...of turbulent flow problems and the design processes. The ... See full document

... the backward-facing step and by the outlet ...character flow in the middle part of the channel and the relative length L 1 /H 1 = 90 ensures the developed channel flow at the ... 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

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

... the flow between parallel plates and is extended to conduct numerical experimentation of flow over forward-backward facing step in ...the numerical model have been ... See full document

... 2D numerical model for examining the fluid flow behaviours (pertaining to density, vorticity and Mach number distributions) over a backward facing sharp edge step deploying the ... See full document

... fluid flow by reduced order models (ROM) and carrying out an exact optimization for the reduced ...of flow over the backward facing step in the context of stationary ... See full document