Results 11 to 20 of about 458,946 (359)
The onset of instability in unsteady boundary-layer separation [PDF]
, 1996 The process of unsteady two-dimensional boundary-layer separation at high Reynolds number is considered. Solutions of the unsteady non-interactive boundary-layer equations are known to develop a generic separation singularity in regions where the ...
Cassel, KW, Smith, FT, Walker, JDA
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Flow Control Methods and Their Applicability in Low-Reynolds-Number Centrifugal Compressors—A Review
International Journal of Turbomachinery, Propulsion and Power, 2017 The decrease in the performance of centrifugal compressors operating at low Reynolds numbers (e.g., unmanned aerial vehicles at high altitudes or small turbomachines) can reach 10% due to increased friction.
Jonna Tiainen +3 more
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Investigation into boundary layer transition using wall-resolved large-eddy simulations and modeled inflow turbulence [PDF]
Wind Energy Science, 2022 The objective of the present paper is to investigate the transition scenario of the flow around a typical section of a wind turbine blade exposed to different levels of inflow turbulence.
B. A. Lobo +2 more
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Open Physics, 2022 This article aims to conduct a numerical investigation of phenomena induced by gas expansion in chemical propulsion nozzles. A numerical simulation of full-scale flat convergent-divergent nozzle geometry using the finite volume method on structured ...
Dehane Rabie +6 more
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Direct numerical simulations of transition in a compressor cascade: The influence of free-stream turbulence [PDF]
, 2010 Copyright © Cambridge University Press 2010.The flow through a compressor passage without and with incoming free-stream grid turbulence is simulated.
Durbin, PA +3 more
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Vietnam Journal of Mechanics, 2011 For compressible flows, the transonic state depends on the geometry, Mach number and the incidence. This effect can produce shock wave. Some studies showed that the interaction between shock wave and boundary layer concerns separation phenomenon. Studies
Hoang Thi Bich Ngoc, Nguyen Manh Hung
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Numerical study of the effect of sidewalls on shock train behaviour
Flow, 2023 Strongly coupled sequences of shock waves, known as shock trains, are present in high-speed propulsion systems, where the presence of sidewalls substantially modifies the boundary layer thickness, skin friction and streamwise pressure distribution.
Alexander Gillespie, Neil D. Sandham
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Active Boundary Layer Control on a Highly Loaded Turbine Exit Case Profile
International Journal of Turbomachinery, Propulsion and Power, 2018 A highly loaded turbine exit guide vane with active boundary layer control was investigated experimentally in the High Speed Cascade Wind Tunnel at the University of the German Federal Armed Forces, Munich.
Julia Kurz +2 more
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Advances in Mechanical Engineering, 2019 At hypersonic speeds, the external wall temperatures of an aerospace vehicle vary significantly. As a result, there is a considerable heat transfer variation between the boundary layer and the wall of the hypersonic vehicle.
Amjad A Pasha, Khalid A Juhany
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Implementation of a correction factor for the Pohlhausen laminar boundary layer applied on the CEVA curved wall jet model [PDF]
INCAS Bulletin, 2013 Curved wall jets have many technical applications, ranging from aeronautical circulation controlled wings to micro-fluidics and cryogenics. This paper addresses the issue of correctly estimating the boundary layer separation for laminar curved wall jets.
Valeriu DRAGAN
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