Experimental investigation of pressure-swirl atomizers with a modification in a geometry of spill-return orifice

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F15%3APU115595" target="_blank" >RIV/00216305:26210/15:PU115595 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Experimental investigation of pressure-swirl atomizers with a modification in a geometry of spill-return orifice
Original language description
This study investigates characteristics of spray generated by a pressure swirl atomizer (spill-return type) which is designed for a small-sized jet engine using shadowgraphy and Phase-Doppler Anemometry (PDA). The purpose of this study is to find out aninfluence of a spill-return orifice geometry on (an) atomization quality. Two different geometries of the spill-return orifice were tested in terms of spray stability on a cold test bench. The former atomizer uses the direct axial spill-return orifice located in a centre of a swirl chamber, whileere the modified atomizer contains an obstacle blocking axial flow through the spill-return orifice. PDA measurement yields drop-size distribution and velocity data, whileere the shadowgraphy unveils a break-upprocess in detail. Performed measurements reveals significant differences in spray characteristics as well as differences in spraybreak-up stability. Results of this study showleadsato necessity of more detailed investigation (in the area
Czech name
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Czech description
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Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
34th Conference of Departments of Fluids Mechanics and Thermomechanics Proceedings of Extended Abstracts
ISBN
978-80-7414-912-2
ISSN
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e-ISSN
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Number of pages
2
Pages from-to
1-2
Publisher name
Neuveden
Place of publication
Litoměřice
Event location
Litoměřice
Event date
Jun 22, 2015
Type of event by nationality
CST - Celostátní akce
UT code for WoS article
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