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contributor authorMcKelvy, Aubrey J.
contributor authorBraun, James
contributor authorPaniagua, Guillermo
contributor authorAndre, Thierry
contributor authorChoquet, Etienne
contributor authorFalempin, Francois
date accessioned2024-12-24T18:52:05Z
date available2024-12-24T18:52:05Z
date copyright1/4/2024 12:00:00 AM
date issued2024
identifier issn0742-4795
identifier othergtp_146_06_061014.pdf
identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4302895
description abstractA quantifiable, reproducible, and repeatable definition of the three-dimensional spray width and depth for a canonical jet in an open-source supersonic crossflow is presented. An expanding Mach 2 dry-air crossflow is generated through a converging-diverging nozzle with a 25.4 mm by 230 mm wide throat area. A one-millimeter injector with ethanol seeding provides the liquid injection. Injector characteristics and losses are quantified through a calibrated cavitating venturi. Momentum flux ratios ranged from 0.1 to 20, and Reynolds number scaled by the injector diameter ranged from 5000 to 40,000. A shadowgraph setup with a telecentric lens provides uniform magnification for precise and repeatable measurements from injection to 150 mm downstream of the jet. A Phantom v2012 camera with a frame rate of 20 kHz and shutter time of 285 ns was employed. Light transmittance is defined and calculated for each image pixel with a ratio method paired with no-spray images collected immediately before injection. These values are then related to an attenuation coefficient by incorporating spray width profiles collected with cross-sectional Mie-scatter imaging at multiple axial locations with a burst mode laser.
publisherThe American Society of Mechanical Engineers (ASME)
titleQuantitative Definition of Spray Edge With Extinction Diagnostics and Evaluation of Attenuation Coefficient for Liquid Jets in Supersonic Crossflow
typeJournal Paper
journal volume146
journal issue6
journal titleJournal of Engineering for Gas Turbines and Power
identifier doi10.1115/1.4063887
journal fristpage61014-1
journal lastpage61014-11
page11
treeJournal of Engineering for Gas Turbines and Power:;2024:;volume( 146 ):;issue: 006
contenttypeFulltext


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