Results 21 to 30 of about 102,556 (307)

Flow Separation Control of an Ultra-compact S-shaped Convergent-divergent Nozzle Using the Blowing Method [PDF]

open access: yesJournal of Applied Fluid Mechanics
To enhance the aerodynamic performance of an ultra-compact S-shaped convergent-divergent nozzle and mitigate flow separation, numerical simulations were conducted using FLUENT software.
J. W. Shi   +3 more
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.
Sarallah 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

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

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

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

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

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

Lift Enhancement for Low-Aspect-Ratio Wings with Periodic Excitation [PDF]

open access: yes, 2010
In an effort to enhance lift on low-aspect-ratio rectangular flat-plate wings in low-Reynolds-number post-stall flows, periodic injection of momentum is considered along the trailing edge in this numerical study.
Colonius, Tim   +3 more
core   +1 more source

Oscillation threshold of a clarinet model: a numerical continuation approach [PDF]

open access: yes, 2012
This paper focuses on the oscillation threshold of single reed instruments. Several characteristics such as blowing pressure at threshold, regime selection, and playing frequency are known to change radically when taking into account the reed dynamics ...
Almeida A.   +12 more
core   +2 more sources

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