Results 21 to 30 of about 102,014 (306)

Numerical Investigation of the Effects of the Hole Inclination Angle and Blowing Ratio on the Characteristics of Cooling and Stress in an Impingement/Effusion Cooling System

open access: yesEnergies, 2023
Due to the uneven temperature field and temperature gradient introduced by an efficient cooling structure, the analysis of the stress field is necessary. In this study, the cooling characteristics and stress characteristics such as the thermal stress and
Haiwang Li   +4 more
doaj   +1 more source

Film Cooling From Two Staggered Holes Rows of Opposite Injection Angles with Downstream Row Embedded In Arc Trench [PDF]

open access: yesEngineering and Technology Journal, 2014
Experimental investigation of film cooling from two staggered rows holes,backward and forward; of opposite injection angles has been done. The forward holes row was embedded in arc trench.
Assim H Yousif, Humam Kareem Jalghaf
doaj   +1 more source

Influence of different blowing parameters on flow control on an airfoil

open access: yesJournal of Mechanical Engineering and Sciences, 2022
A numerical study on flow separation control is conducted for an airfoil with a blowing jet. In this regard, the effect of different parameters of air blowing on stall controlling and flow structure over NACA 0012 is followed.
S. Abbasi
doaj   +1 more source

A Transient Method Using Liquid Crystal for Film Cooling Over a Convex surface

open access: yesInternational Journal of Rotating Machinery, 2001
In order to explore the effect of blowing ratio on film cooling over a convex surface, the present study adopts the transient liquid crystal thermography for the film cooling measurement on a straight circular hole configuration.
Ping-Hei Chen   +2 more
doaj   +1 more source

Numerical Simulation of the Slag Splashing Process in A 120 Ton Top-Blown Converter

open access: yesMetals, 2023
Slag splashing operations at the end of the converter blow process can improve the furnace liner life and the converter operation rate. However, the effect of factors on slag splashing at actual dimensions is yet to be fully understood.
Guang Yang   +4 more
doaj   +1 more source

Local Heat Transfer Measurements on a Rotating Flat Blade Model with a Single Film Hole [PDF]

open access: yes, 2009
An experimental study was performed to measure the heat transfer coefficient distributions on a flat blade model under rotating operating conditions. A steady-state thermochromic liquid crystal technique was employed to measure the surface temperature ...
Tao, Z   +4 more
core   +2 more sources

Experimental Study of Two Rows Hybrid Film Cooling Holes Over Flat Plate Surface Using IR Technology

open access: yesJournal of Techniques, 2023
The study examines the effectiveness of two rows of hybrid film cooling holes over a plate surface using infrared technology and a thermal wind tunnel.
Ahmed A. Naji   +3 more
doaj   +1 more source

Air recovery assessment on high-pressure pneumatic systems [PDF]

open access: yes, 2016
A computational simulation and experimental work of the fluid flow through the pneumatic circuit used in a stretch blow moulding machine is presented in this paper.
Codina Macià, Esteban   +2 more
core   +2 more sources

The Effect of Using Ramps with Trench Cylindrical Holes on Film Cooling Effectiveness

open access: yesWasit Journal of Engineering Sciences, 2015
     The effect of introducing ramp with a cylindrical slot hole on the film cooling effectiveness has been investigated experimentally and numerically. The film cooling effectiveness measurements are obtained experimentally.
Ahmed A. Imram   +2 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.
Akanni S. D.   +22 more
core   +1 more source

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