Results 21 to 30 of about 24,380 (286)
Journal of Fluid Science and Technology, 2010 To predict unstable characteristic of mixed flow pump, two mixed flow pumps were experimentally and numerically investigated. Calculated characteristics agreed well with experimental ones.
Kiyotaka HIRADATE +3 more
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Stall Inception Control by Setting Groove Based on Its Formation Mechanism in Centrifugal Impeller [PDF]
Journal of Applied Fluid MechanicsStall, a complex flow phenomenon in centrifugal pump, plays a crucial role in pump safety and stability under part-load conditions. In this paper, a verified numerical simulation method is employed to analyze the three-dimensional flow field under the ...
X. D. Liu +4 more
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Stall Inception in a Boundary Layer Ingesting Fan [PDF]
Volume 2A: Turbomachinery, 2015 Jet engines with Boundary Layer Ingestion (BLI) could offer significant reductions in aircraft fuel burn compared with podded turbofans. However, the engine fans must run continuously with severe inlet distortion, which is known to reduce stability. In this paper an experimental study has been completed on a low-speed rig fan operating with a BLI-type ...
Perovic, D, Hall, CA, Gunn, EJ
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Effect of dynamic stall on the aerodynamics of vertical-axis wind turbines [PDF]
, 2011 Accurate simulations of the aerodynamic performance of vertical-axis wind turbines pose a significant challenge for computational fluid dynamics methods.
Angell R. K. +9 more
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Simulating the aerodynamic performance and wake dynamics of a vertical-axis wind turbine [PDF]
, 2011 The accurate prediction of the aerodynamics and performance of vertical-axis wind turbines is essential if their design is to be improved but poses a signifi cant challenge to numerical simulation tools.
Brown, Richard +2 more
core +1 more source
Simulation of Entropy Generation under Stall Conditions in a Centrifugal Fan
Entropy, 2014 Rotating stalls are generally the first instability met in turbomachinery, before surges. This 3D phenomenon is characterized by one or more stalled flow cells which rotate at a fraction of the impeller speed. The goal of the present work is to shed some
Lei Zhang +3 more
doaj +1 more source
Using Tip Injection to Stability Enhancement of a Transonic Centrifugal Impeller with Inlet Distortion [PDF]
Journal of Applied Fluid Mechanics, 2022 This paper aims to understand the effects of circumferential inlet distortion and tip injection on a transonic impeller performance and flow field. For distorted inflow, the impeller is subjected to a stationary 120-degrees circumferential total pressure
Z. Jahani, H. Khaleghi, S. Tabejamaat
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International Journal of Rotating Machinery, 2015 The present paper is an attempt in understanding the stall inception mechanism in a low speed, contra rotating axial flow fan stage, using wavelet transforms.
Tegegn Dejene Toge, A. M. Pradeep
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Stall Inception and Development in an Axial Flow Aeroengine [PDF]
Journal of Turbomachinery, 1993 This paper describes the phenomenon of stall and surge in an axial flow aeroengine using fast response static pressure measurements from the compressor of a Rolls-Royce VIPER engine. It details the growth of flow instability at various speeds, from a small zone of stalled fluid involving only a few blades into the violent surge motion of the entire ...
Alexander G. Wilson, Chris Freeman
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A new stall-onset criterion for low speed dynamic-stall [PDF]
, 2005 The Beddoes/Leishman dynamic-stall model has become one of the most popular for the provision of unsteady aerofoil data embedded in much larger codes.
Beddoes +20 more
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