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RISLarge Eddy Simulation on the Interactions of Wake and Film Cooling Near a Leading Edge
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The unsteady flow physics due to interactions between a separated shear layer and film cooling jet apart from excitation of periodic passing wake are studied using large eddy simulation (LES). An aerofoil of constant ...
Effect of Vortex Generators on Film Cooling Effectiveness
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Film cooling is often adopted, where coolant jets are ejected to form a protective layer on the surface against the hot combustor gases. The bending of jets in crossflow results in counter rotating vortex pair (CRVP), which ...
Effects of Free Stream Turbulence on Transition of a Separated Boundary Layer Over the Leading Edge of a Constant Thickness Airfoil
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper describes the change in the transition mechanism of a separated boundary layer formed from the semicircular leadingedge of a constant thickness airfoil as the freestream turbulence (fst) increases. Experiments ...
Features of a Laminar Separated Boundary Layer Near the Leading-Edge of a Model Airfoil for Different Angles of Attack: An Experimental Study
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The evolution of a separated boundary layer over a model airfoil with semicircular leading-edge has been illustrated for angles of attack (α) varying from −3 deg to 10 deg, where the Reynolds number (Rec) based on chord ...
Excitation of Shear Layer Due to Surface Roughness Near the Leading Edge: An Experiment
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In this paper, a comprehensive study has been performed to address the excitation of a separated boundary layer near the leading edge due to surface roughness. Experiments are performed on a model airfoil with the semicircular ...
Excitation of a Separated Flow by a Series of Protuberances Near the Leading Edge of a Model Aerofoil
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This article documents the manifestation of a shear layer under the excitation of a series of hemispherical protuberances near the leading edge of a constant-thickness airfoil. The experiments are performed at a Reynolds ...
Large Eddy Simulation of Self-Sustained Cavity Oscillation for Subsonic and Supersonic Flows
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The primary objective is to perform a large eddy simulation (LES) using shear improved Smagorinsky model (SISM) to resolve the large-scale structures, which are primarily responsible for shear layer oscillations and acoustic ...
Interactions of Separation Bubble With Oncoming Wakes by Large Eddy Simulation
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The unsteady flow physics and heat transfer characteristics due to interactions of periodic passing wakes with a separated boundary layer are studied using largeeddy simulation (LES). A series of airfoils of constant ...
Diurnal Warm Layers in the Ocean: Energetics, Nondimensional Scaling, and Parameterization
Publisher: American Meteorological Society
Computation of the Flow Over a Sphere at Re = 3700: A Comparison of Uniform and Turbulent Inflow Conditions
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A highly resolved computation of the flow past a sphere at Reynolds number Re = 3700 using a finite element method (FEM)based residualbased variational multiscale (RBVMS) formulation is performed. Both uniform and ...