Rectangular jets in a crossflow

Journal Article · Fri Sep 01 00:00:00 EDT 1989 · Journal of Aircraft; (USA)

DOI:https://doi.org/10.2514/3.45843· OSTI ID:5370616

Kavsaoglu, M S; Schetz, J A; Jakubowski, A K ^[1]

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1. Virginia Polytechnic Institute and State Univ., Blacksburg (USA)

Rectangular jets injected from a flat plate into a crossflow at large angles have been studied. Results were obtained as surface pressure distributions, mean velocity vector plots, turbulence intensities, and Reynolds stresses in the jet plume. The length-to-width ratio of the jets was 4, and the jets were aligned streamwise as single and side-by-side dual jets. The jet injection angles were 90 and 60 deg. Surface pressure distribution results were obtained for jet-to-freestream velocity ratios of 2.2, 4, and 8. Mean flow and turbulence flowfield data were obtained for the side-by-side dual jets, mainly for the jet-to-freestream velocity ratio of 4. The jets featured strong negative pressure peaks near the front nozzle corners. The 60-deg jets produced lower magnitude negative pressures, which are distributed over a lesser area when compared to the 90-deg jets. 26 refs.

• OSTI ID: 5370616
• Journal Information: Journal of Aircraft; (USA), Journal Name: Journal of Aircraft; (USA) Vol. 26; ISSN 0021-8669; ISSN JAIRA
• Country of Publication: United States
• Language: English

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CROSSFLOW SYSTEMS
FLUID FLOW
FLUID INJECTION
FUEL INJECTION SYSTEMS
FUEL SYSTEMS
JETS
NOZZLES
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TURBULENT FLOW