Results 41 to 50 of about 59,594 (307)
A study of rotating stall in a vaneless diffuser of radial flow pump [PDF]
, 2018 Rotating stall in a vaneless diffuser of radial flow pump is studied. The measurements consist of: (i) unsteady pressure measurements delivered by two microphones; and (ii) nine steady pressure taps mounted in one radial line to measure the pressure ...
DAZIN, Antoine +7 more
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Thickness effect of Naca foils on hydrodynamic global parameters, boundary layer states and stall establishment [PDF]
, 2010 The present study investigates experimentally the hydrodynamic behavior of 2D NACA (15, 25, 35%) symmetric hydrofoils at Reynolds number 0.5 106 . A particular attention is paid on the hysteretic behavior at static stall angle and a detailed cartography
Billard, Jean-Yves +3 more
core +1 more source
Implementation and validation of a numerical model for dynamic stall simulation in helicopter airfoils [PDF]
, 2022 Dynamic stall is one of the most complex aerodynamic phenomenon and it affects the perfor- mance of a wide variety of fluid machinery. Previous works show a lack of reliability and accuracy in the development of a stable CFD prediction model.
Ciavarella, Christopher
core
Influence of Distributed Leading-Edge Roughness on Stall Characteristics of NACA0012 Airfoil
Shanghai Jiaotong Daxue xuebao, 2022 The influence of the distributed leading-edge roughness on the stall characteristics of NACA0012 airfoil is analyzed in full turbulence flow or transition flow.
LI Yi, BAI Junqiang, ZHANG Yanjun, ZHAO Ke
doaj +1 more source
A Zonal Detached Eddy Simulation of the Trailing Edge Stall Process of a LS0417 Airfoil
AerospaceA Zonal Detached Eddy Simulation (ZDES) based on the SST turbulence model is implemented to the numerical investigation of the trailing edge stall of a LS-0417 airfoil, which includes multiple DES modes for different classifications of flow separation ...
Wenbo Shi, Heng Zhang, Yuanxiang Li
doaj +1 more source
Journal of Fluid Science and Technology, 2011 Radial-vaned air separators produce strong stall improvement effect in axial flow fans. Changes in the fan internal flow patterns achieved by the device are confirmed by Pitot traverse measurements. For the air separator condition, with a decrease in the
Nobuyuki YAMAGUCHI +2 more
doaj +1 more source
Investigating the CREDIT History of Supernova Remnants as Cosmic-Ray Sources
The Astrophysical Journal LettersSupernova remnants (SNRs) have long been suspected to be the primary sources of Galactic cosmic rays. Over the past decades, great strides have been made in the modeling of particle acceleration, magnetic field amplification, and escape from SNRs.
Anton Stall +2 more
doaj +1 more source
Journal of Fluid Science and Technology, 2014 The effect of 3-dimensional blade on the turbine characteristics has been investigated experimentally by model testing under steady flow conditions and simulated numerically by quasi-steady analysis under sinusoidal flow conditions, in order to improve ...
Manabu TAKAO +3 more
doaj +1 more source
Computational research on the formation mechanism of double humps in pump–turbines
Engineering Applications of Computational Fluid Mechanics, 2021 The hump formation mechanism has not been fully understood so far, mainly because of two difficulties in analysis. The first one is how to find the most important external characteristic factor inducing humps, and the other is how to avoid too many ...
Yong Liu, Dezhong Wang, Hongjuan Ran
doaj +1 more source
Effect of dynamic stall on the aerodynamics of vertical-axis wind turbines
, 2011 Accurate simulations of the aerodynamic performance of vertical-axis wind turbines pose a significant challenge for computational fluid dynamics methods.
Richard E. Brown +4 more
core +1 more source