Results 11 to 20 of about 2,805,705 (290)

Charge-to-mass ratio of individual blowing-snow particles [PDF]

open access: yesAnnals of Glaciology, 1998
Determining the electrostatic force acting on saltating snow particles requires knowledge of the electric field in the saltation region and the charge on the particle. To date, measurements of average charge-to-mass ratios for blowing-snow samples have been made but Schmidt and Schmidt (1993) have indicated these may underestimate ...
D. S. Schmidt, J. D. Dent, R. A. Schmidt
core   +3 more sources

Film cooling performance analysis of different multi-row cooling hole configurations [PDF]

open access: yesScientific Reports
This paper investigates film cooling flow over a flat plate with five different cooling hole configurations. These configurations include a combined arrangement of cylindrical and fan-shaped holes.
Devendra Pratap Singh   +2 more
doaj   +2 more sources

Examination of three candidate technologies for high-lift devices on an aircraft wing [PDF]

open access: yes, 2005
A research programme was initiated to examine three candidate high-lift technologies, which would, if implemented, simplify the mechanical complexity of the multiple component trailing-edge devices traditionally employed on civil transport aircraft ...
Knepper, Angela Marie
core   +7 more sources

Effects of Simultaneous Suction and Blowing over an Airfoil on Flow Behavior and Aerodynamic Coefficients [PDF]

open access: yesIranica Journal of Energy and Environment, 2022
In this study, the simultaneous effect of suction and blowing on the boundary layer and the effect of control parameters on the flow separation from a NACA 0012 airfoil is numerically analyzed.
S. Abbasi, S. Esmailzadeh Vali
doaj   +1 more source

Research on the Hole Length Ratio of Fan-Shaped Holes in Flat Plate Film Cooling

open access: yesFrontiers in Energy Research, 2021
To study the influence of different hole length ratios on the flow structure and film cooling efficiency, a calculation model of fan-shaped hole was constructed and numerically studied. The effect of different hole length ratios on the cooling efficiency
Xun Zhou, Runxuan Qin, Le Cai
doaj   +1 more source

Effect of Multistage Circulation Control on Blade Aerodynamic Performance

open access: yesEnergies, 2022
To improve the low aerodynamic efficiency and reduce the high energy consumption of a single-stage circulation control wing, a multistage circulation control wing was designed.
Hai Du   +4 more
doaj   +1 more source

Estimation of phosphorus distribution ratio at the end of blowing in BOF

open access: yesMetallurgical and Materials Engineering, 2021
In integrated steel plants, the removal of phosphorous normally takes place during the primary basic oxygen furnace (BOF) steelmaking process. Phosphorous is usually introduced to the integrated steelmaking process through blast furnace additions, such as iron ore, coke, sinter, and fluxes.
Slovic, Z. M.   +3 more
openaire   +3 more sources

Experimental Investigation on the Transpiration Cooling Characteristics of Sintered Wire Mesh in Plain Weave

open access: yesMicromachines, 2022
We experimentally investigate the transpiration cooling characteristics of a porous material, sintered wire mesh. Three samples with different porosities in a plain weave structure are tested with various blowing ratios in an open-loop wind tunnel with a
Yubo Peng   +4 more
doaj   +1 more source

Control of rotorcraft retreating blade stall using air-jet vortex generators [PDF]

open access: yes, 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   +17 more
core   +8 more sources

Comparison of turbine blade film cooling efficiency between PSP and TLC techniques in a stationary wind tunnel

open access: yesAIP Advances, 2021
In general, pressure sensitive paint (PSP) and thermochromic liquid crystal (TLC) are used to indicate film cooling efficiency. However, due to the mechanisms of PSP and TLC being different, their results are not consistent in some cases. Thus, analyzing
Xiaojian He   +3 more
doaj   +1 more source

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