Results 21 to 30 of about 368,794 (339)
Detection and Analysis of an Alternate Flow Pattern in a Radial Vaned Diffuser
International Journal of Turbomachinery, Propulsion and Power, 2020 The flow in the vaned diffuser of an aeronautical centrifugal compressor designed by Safran Helicopter Engines is analyzed through steady and unsteady pressure measurements at different rotation speeds.
Victor Moënne-Loccoz +3 more
doaj +1 more source
Determination of Ranges of Unstable Operation of Axial Compressor for Aircraft Turbine Engines [PDF]
Problemy Mechatroniki, 2022 Currently, strict requirements are set for aircraft turbine engine performance, which requires introducing larger, more complex, and more loaded compressors.
Adam KOZAKIEWICZ +2 more
doaj +1 more source
Modeling the interplay between the shear layer and leading edge suction during dynamic stall
The Physics of Fluids, 2019 The dynamic stall development on a pitching airfoil at Re = 106 was investigated by time-resolved surface pressure and velocity field measurements. Two stages were identified in the dynamic stall development based on the shear layer evolution.
J. Deparday, K. Mulleners
semanticscholar +1 more source
Applied Sciences, 2020 A numerical study was conducted on the influence of turbulence intensity and Reynolds number on the mean topology and transition characteristics of flow separation to provide better understanding of the unsteady jet flow of turboelectric distributed ...
Yang Zhang, Zhou Zhou, Kelei Wang, Xu Li
doaj +1 more source
Flow Behavior Caused by Air Permeability of Ski Jumping Suit Fabric
Proceedings, 2020 The purpose of this study was to investigate the effect of the air permeability of ski jumping suit fabric on aerodynamic characteristics. In the study, four types of fabric with different air permeabilities were installed onto a fabric-clothed elliptic ...
Yuki Kataoka +4 more
doaj +1 more source
Unsteady Flow Physics of Airfoil Dynamic Stall
AIAA Journal, 2019 A series of wind-tunnel experiments was conducted on a dynamically pitching NACA 0012 airfoil in order to understand the unsteady flow physics associated with dynamic stall at a transitional Reynol...
Rohit Gupta, Phillip J. Ansell
semanticscholar +1 more source
Dynamic Stall of a Vertical-Axis Wind Turbine and Its Control Using Plasma Actuation
Energies, 2019 In this paper, a dynamic stall control scheme for vertical-axis wind turbine (VAWT) based on pulsed dielectric-barrier-discharge (DBD) plasma actuation is proposed using computational fluid dynamics (CFD).
Lu Ma +3 more
semanticscholar +1 more source
Applied Sciences, 2020 Flow separation is undesirable and lowers the efficiency of centrifugal impellers. In this study, the evolution characteristics of separated vortices in a centrifugal impeller are studied under the off-designed flow rate condition.
Shihao Zhou +3 more
doaj +1 more source
The Role of Tip Leakage Flow in Spike-Type Rotating Stall Inception
Journal of turbomachinery, 2017 This paper describes the role of tip leakage flow in creating the leading edge separation necessary for the onset of spike-type compressor rotating stall.
M. Hewkin-Smith +4 more
semanticscholar +1 more source
Cause specification of performance curve instability in mixed-flow pump by LES
Nihon Kikai Gakkai ronbunshu, 2016 A technique for high-accuracy predicting performance curve instability in pumps and clarification of the phenomenon in order to control the instability is required for designing high performance pumps.
Isao HAGIYA +4 more
doaj +1 more source