Cell distribution in the backward facing step
Numerical simulation of the turbulent convective buoyant flow of sodium over a backward- facing step
... The steady-state, two-dimensional simulations have been performed using OpenFOAM. The SIMPLE algorithm for the pressure-velocity coupling has been used. Blended schemes with an order of accuracy between one and two have ...
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An experimental investigation of backward facing step flow
... investigate backward facing step flow an Eiffell type open circuit subsonic wind tunnel of ITU Trisonic Aerodynamics Laboratory was ...different step geometries were employed in a 20 m/s ...
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Numerical Simulation over a backward facing step with OpenFOAM
... To get some results for the backward facing step, the decision was made to change to a coarser grid. Two different types of simulations were performed on the coarse grid. The first one is the IDDES ...
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Comparison of Turbulence Models on 2D Backward Facing Step
... Regarding grid independency, if one observes Figure 10 to Figure 12, it is clear that the two meshes tested (59000-cell and 531000-cell) for grid independence give close results except those showed in ...
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Numerical Investigation of Backward Facing Step Flow over Various Step Angles
... In this study, based on an open source CFD package OpenFOAM we carried out a number of numerical simulations using Reynolds Averaged Navier-Stokes (RANS) and Large Eddy Simulation (LES) approaches. The numerical ...
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Three dimensional instability in flow over a backward facing step
... downstream distribution obviously depends on the dissipation of momentum in the core part of the ...computed distribution of C f for both a coarse and fine grid calculation at Re = ...entire ...
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Dynamics of flow behind backward-facing step in a narrow channel
... the backward- facing step was 25 mm defining ratio 1 : 4 with the channel ...on step height was approximately 3.5 10 4 . The back-facing step has been located very close to the ...
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Vortex flow over the flat plate and backward facing step
... this step flow rate to be set within the channel per the need, the speed of flow iscalculated by victimization the floating particle technique that was delineated higher ...this step amendment the model and ...
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Assessment of secondary bubble formation on a backward-facing step geometry
... FDS selects the time step size to ensure that the CFL is smaller than one. Physically, the criterion states that a fluid element should not traverse more than one cell within a time step. The ...
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Convective instability and transient growth in flow over a backward facing step
... rectangular backward-facing-step geometry with expansion ratio two are ...the step height and peak inflow speed are considered in the range 0–500, which is below the value for the onset of ...
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Influence of a Backward-Facing Step on Swept-Wing Boundary-Layer Transition
... of Step Height on Unsteady Disturbance Growth and Breakdown Results for the largest step height were discussed in detail by Eppink et ...other step heights. The velocity spectra downstream of the ...
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Direct numerical simulation of turbulent flow over a backward facing step
... 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 ...
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Experimental investigation of turbulent flow in a channel with the backward-facing inclined step
... THE BACKWARD-FACING INCLINED STEP Jaromír PÍHODA, Michal KOTEK, Václav URUBA, Václav KOPECKÝ, Ondej HLADÍK x Abstract: The work deals with the experimental investigation of turbulent flow in a closed ...
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Dynamics of secondary flow behind backward-facing step in a narrow channel
... 3.1. Experimental Techniques The time-resolved PIV method was used for the experiments. The measuring system DANTEC consists of a double-pulse laser with cylindrical optics and CCD camera. The software Dynamics Studio ...
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Large eddy simulation of turbulent flow downstream of a backward-facing step
... Abstract large eddy simulation is used to predict turbulent flow in the separated and reattached flow regions downstream of a backward-facing step.Simulations were carried out at a Reynolds number of 28 000 ...
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Comparative Study of LES and RANS Simulation of a Flow across a Backward Facing Step
... Assistant Professor, Department of Mechanical Engineering, Universal Engineering College, Thrissur, Kerala, India 1 Professor, Department of Mechanical Engineering, School of Engineering, CUSAT, Thrissur, Kerala, India 2 ...
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Active flow control over a backward-facing step using plasma actuation
... a backward-facing step to assess its effects on the separated turbulent shear layer and its reattachment ...the step and the reattachment ...the step separation ...
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Heat transfer and fluid flow over microscale backward and forward facing step: A review
... macroscale backward-facing and forward-facing steps on turbulent natural convection along a vertical heated flat plate was experimentally ...of backward-facing step or ...
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Research on Effects of Obstacles on Heat Transfer and Fluid Flow in Backward Facing Step Flow
... with backward facing step for predicting the flow characteristics and to augment the heat ...the backward facing step influence fluid flow and boosts heat ...in step ...
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Numerical Computation of Flow Reattachment Lengthovera Backward Facing Step at High Reynolds Number
... a step was simulated in a 2- D by using Computational Fluid ...over backward facing stepwere ...over backward facing ...increasing step angle, expansion ratio and Reynolds ...
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