Results 11 to 20 of about 172,746 (245)
Control of rotorcraft retreating blade stall using air-jet vortex generators [PDF]
, 2006 A series of low-speed wind tunnel tests were carried out on an oscillating airfoil fitted with two rows of air-jet vortex generators (AJVGs). The airfoil used had an RAE 9645 section and the two spanwise arrays of AJVGs were located at x/c=0.12 and 0.62.
Kokkalis, A. +5 more
core +9 more sources
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.
Scheurich, Frank, Brown, Richard
core +4 more sources
Rotating stall inception in fans of low hub-tip ratio [PDF]
, 1991 An investigation was carried out to study the process of rotating stall inception in a low hub-tip ratio fan. Such fans are expected, based on an elementary analysis, to stall from the root.
Soundranayagam, M.
core +7 more sources
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.
Sheng, W. +7 more
core +1 more source
Effect of Non-Uniformity of Rotor Stagger Angle on the Stability of a Low-Speed Axial Compressor
Energies, 2022 It is well known that variations in stagger angle between rotor blades affect compressor performance. In this paper, the stagger angle of blade No. 8 is increased or decreased by six degrees for non-uniformity, and the influence of rotor non-uniformity ...
Shuai Ma, Jun Hu, Xuegao Wang, Jiajia Ji
doaj +1 more source
Energies, 2018 It is of great value to study the impact of abnormal blade installation angle on the inducement mechanism of rotating stall to achieve the active control of rotating stall in an axial fan.
Lei Zhang +5 more
doaj +1 more source
Experimental and model investigations of SPS casing treatment on a two-stage compressor
Propulsion and Power Research, 2021 This paper will first carry out experimental investigations on a test compressor which is a large-scale, two-stage and low-speed axial one to evaluate the participation of a novel casing treatment (stall precursor-suppressed casing treatment, SPS CT ...
Xu Dong +3 more
doaj +1 more source
Observations of the Growth and Decay of Stall Cells during Stall and Surge in an Axial Compressor
International Journal of Rotating Machinery, 2017 This research investigated unsteady events such as stall inception, stall-cell development, and surge. Stall is characterized by a decrease in overall pressure rise and nonaxisymmetric throughflow.
Adam R. Hickman, Scott C. Morris
doaj +1 more source
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
doaj +1 more source
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
doaj +1 more source