Results 11 to 20 of about 73,280 (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
Numerical investigation of recess casing treatments in axial flow fans [PDF]
, 2003 T he casing treatment technique for the axial fan has never been more significant since its potential applications were recognized in gas turbines, tunnel ventilation and many other industrial applications where the axial fan would benefit from the ...
Ghila, Abdurazag M.
core +7 more sources
Energies, 2021 The RANS (Reynolds-averaged Navier–Stokes equations) with CFD (Computational Fluid Dynamics) simulation method is used to analyze the head hump formation mechanism in the double-suction centrifugal pump under a part load condition.
Yong Liu +5 more
doaj +1 more source
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
Delaying the Stall of A Low-Wing Aircraft Using A Novel Powerful Vortex Generator
Inventions, 2022 In this study, a new aerodynamic surface concept is introduced, which is a powerful vortex generator (PVG). It can delay the stall point in a low-wing aircraft. This delay leads to a significant increase in the CLmax of an aircraft.
Mostafa Goharshadi, Masoud Mirzaei
doaj +1 more source
Boundary Layer Separation and Reattachment Detection on Airfoils by Thermal Flow Sensors
Sensors, 2012 A sensor concept for detection of boundary layer separation (flow separation, stall) and reattachment on airfoils is introduced in this paper. Boundary layer separation and reattachment are phenomena of fluid mechanics showing characteristics of ...
Peter Busche +4 more
doaj +1 more source
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
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