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Atomization and Sprays
Импакт фактор: 1.737 5-летний Импакт фактор: 1.518 SJR: 0.814 SNIP: 1.18 CiteScore™: 2.2

ISSN Печать: 1044-5110
ISSN Онлайн: 1936-2684

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Atomization and Sprays

DOI: 10.1615/AtomizSpr.v13.i23.80
11 pages

EFFECTS OF A SMALL STEP IN AN ORIFICE ON LIQUID JET BREAKUP

Thomas J. Hoverman
School of Aeronautics and Astronautics, Purdue University, 1375 Aviation Drive, West Lafayette, IN 47907-2015, USA
David Ong
School of Aeronautics and Astronautics, Purdue University, West Lafayette, Indiana, USA
Che-Ping Yeh
School of Aeronautics and Astronautics, Purdue University, West Lafayette, Indiana, USA
Steven Collicott
School of Aeronautics and Astronautics, Purdue University, 1375 Aviation Drive, West Lafayette, IN 47907-2015, USA

Краткое описание

Experiments demonstrate that a small steplike change in diameter placed near the orifice inlet has noticeable effects on the droplet size distribution in the resulting spray. Additionally, the driving pressure required to produce hydraulic flip is increased substantially, allowing greater mass flow through a given diameter orifice. Measurements show that the stream-wise extent of the cavitation at the inlet is substantially reduced by this step, leading to the increased operating pressure range. The fluid mechanisms creating the performance changes need to be investigated.


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