Wall jets created by single and twin high pressure jet impingement

Miller, P. C. H.; Wilson, Michael L.

doi:10.1017/s0001924000025173

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Cited by 7 publications

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VSTOLIntegration

Curtis

2010

Encyclopedia of Aerospace Engineering

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Vertical and/or short takeoff and landing (VSTOL) aircraft have a number of unique propulsion integration challenges ranging from the design of engine inlets that have to work at optimum efficiency from zero forward speed up to the maximum design speed of the aircraft; the control of the aircraft at speeds too low for aerodynamic control effectiveness; aerodynamic suckdown in powered lift flight; and, not least, the issue of controlling the propulsive jets once they hit the ground. This article gives some background to each of these issues and illustrates how designers have tackled the problems they pose in a range of different aircraft.

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VSTOLIntegration

Curtis

2010

Encyclopedia of Aerospace Engineering

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Laser Doppler velocimetry measurements of twin-jet impingement flow for validation of computational models

Behrouzi

McGuirk

1998

Optics and Lasers in Engineering

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A study of wall jets resulting from single and multiple inclined jet impingement

Miller

1995

Aeronaut. j.

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An experimental investigation into the wall jets created by a single inclined, twin inclined and a four inclined jet impingement arrangement is described. Wall jet velocity profiles were recorded at various azimuthal and radial locations for a range of nozzle heights at jet pressures representative of current V/Stol technology. Use was made of wall jet properties established for a normal jet impingement to provide a means of comparing the attributes of the various configurations. Non-splayed twin inclined impinging jets generate symmetry plane reinforcement and weakening in regions remote from the interaction. Splayed jet geometries show significant height effects on ground plane flow development. The four-jet configuration also demonstrates velocity reinforcement at the lines of wall jet interaction, together with a weakening of the flows remote from the interaction planes. Reinforcement velocities for the four-jet case are significantly lower than those expected from the constituent twin-jet flows.

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Wall jets created by single and twin high pressure jet impingement

Cited by 7 publications

References 6 publications

VSTOLIntegration

VSTOLIntegration

Laser Doppler velocimetry measurements of twin-jet impingement flow for validation of computational models

A study of wall jets resulting from single and multiple inclined jet impingement

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