Results 1 to 10 of about 102,014 (306)

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

Numerical analysis on the airflow organization of a blowing suction dust collector [PDF]

open access: yesScientific Reports
Small sweeper will become a very popular way to clean roads in cities if its dust removal efficiency could be improved by combining the dust collector of blowing-suction type. A new dust collector of blowing-suction type used in urban cleaning vehicle is
Wenhe Zhou, Guangmei Dai, Yapeng Jiang
doaj   +2 more sources

On the effect of low blowing ratio continuous jets on wingtip vortex characteristics [PDF]

open access: yes, 2018
Vortices are an unavoidable effect of flight, which appear behind the wing with a bounded length. The strength of these vortices, which are extremely stable, is due to the lift force [1]. That is the reason why this phenomenon is especially relevant during take-off and landing operations.
Blanco-Rodríguez, Francisco José   +3 more
openaire   +3 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

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

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

High-elastic and strong hexamethylene diisocyanate (HDI)-based thermoplastic polyurethane foams derived by microcellular foaming with co-blowing agents

open access: yesJournal of CO2 Utilization, 2023
Thermoplastic polyurethane (TPU) foams have exhibited promising prospect in many industries such as automobile, sportswear and packaging, due to their outstanding mechanical properties.
Chengming Yang   +6 more
doaj   +1 more source

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 charge-to-mass ratios
D. S. Schmidt, J. D. Dent, R. A. Schmidt
openaire   +1 more source

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