Droplet transport in a swirl-stabilized spray flame

Droplet transport processes that occur in fuel sprays and spray flames were examined using laser velocimetry, phase Doppler interferometry, and laser sheet beam photography. Droplet size and velocity (axial and radial) distributions were obtained in a swirl-stabilized, pressure-atomized kerosene spr...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Journal of propulsion and power 1994-09, Vol.10 (5), p.631-638
Hauptverfasser: Presser, C, Gupta, A. K, Semerjian, H. G, Avedisian, C. T
Format: Artikel
Sprache:eng
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
container_end_page 638
container_issue 5
container_start_page 631
container_title Journal of propulsion and power
container_volume 10
creator Presser, C
Gupta, A. K
Semerjian, H. G
Avedisian, C. T
description Droplet transport processes that occur in fuel sprays and spray flames were examined using laser velocimetry, phase Doppler interferometry, and laser sheet beam photography. Droplet size and velocity (axial and radial) distributions were obtained in a swirl-stabilized, pressure-atomized kerosene spray under nonburning and burning conditions. The results show that the introduction of swirl to the combustion air (under nonburning conditions) significantly modifies the spray structure and leads to the transport of smaller size droplets from downstream positions of the spray to upstream near the nozzle exit. Time-based velocity data at different spatial locations of the spray indicated some intermittency in the spray and clustering of droplets. In the center of the spray, near the nozzle exit, most of the droplets are recirculated; near the spray boundary, bimodal velocity distributions indicate the presence of recirculated droplets and droplets that arrive directly from the injector. Combustion results in a significant increase in droplet velocities, especially near the spray boundary where the flame sheet resides. The size of the recirculation zone is much reduced with combustion; however, a number of smaller droplets are still transported upstream. The data demonstrate the important role droplet transport plays in providing a fuel vapor feedback mechanism for flame stability. (Author)
doi_str_mv 10.2514/3.23773
format Article
fullrecord <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_journals_2312978942</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>2312978942</sourcerecordid><originalsourceid>FETCH-LOGICAL-a345t-8d2be0020fbbb601d69c3961288e163e7e73a61c7b9632fc6d215ffebc1d01093</originalsourceid><addsrcrecordid>eNpt0F9LwzAUBfAgCs4pfoWCovjQmeS2Sfoo8y8MfNHnkLQJZGRtTVJ0-_RWNxCGT_fh_jgcDkLnBM9oSYpbmFHgHA7QhJQAOQjODtEE80LkBSvFMTqJcYkxYYLxCYL70PXepCwF1ca-Cylzbaay-OmCz2NS2nm3MU0W-6DWmfVqZU7RkVU-mrPdnaL3x4e3-XO-eH16md8tcgVFmXLRUG0wpthqrRkmDatqqBihQhjCwHDDQTFSc10xoLZmDSWltUbXpMEEVzBFV9vcPnQfg4lJrlysjfeqNd0QJWUABaZ8hBd7cNkNoR27SQqEVlxUBR3V9VbVoYsxGCv74FYqrCXB8mc6CfJ3ulHebKVySv1l7d6yb6y0g_fJfKXRXv5n9yO_AXzGeII</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>2312978942</pqid></control><display><type>article</type><title>Droplet transport in a swirl-stabilized spray flame</title><source>Alma/SFX Local Collection</source><creator>Presser, C ; Gupta, A. K ; Semerjian, H. G ; Avedisian, C. T</creator><creatorcontrib>Presser, C ; Gupta, A. K ; Semerjian, H. G ; Avedisian, C. T</creatorcontrib><description>Droplet transport processes that occur in fuel sprays and spray flames were examined using laser velocimetry, phase Doppler interferometry, and laser sheet beam photography. Droplet size and velocity (axial and radial) distributions were obtained in a swirl-stabilized, pressure-atomized kerosene spray under nonburning and burning conditions. The results show that the introduction of swirl to the combustion air (under nonburning conditions) significantly modifies the spray structure and leads to the transport of smaller size droplets from downstream positions of the spray to upstream near the nozzle exit. Time-based velocity data at different spatial locations of the spray indicated some intermittency in the spray and clustering of droplets. In the center of the spray, near the nozzle exit, most of the droplets are recirculated; near the spray boundary, bimodal velocity distributions indicate the presence of recirculated droplets and droplets that arrive directly from the injector. Combustion results in a significant increase in droplet velocities, especially near the spray boundary where the flame sheet resides. The size of the recirculation zone is much reduced with combustion; however, a number of smaller droplets are still transported upstream. The data demonstrate the important role droplet transport plays in providing a fuel vapor feedback mechanism for flame stability. (Author)</description><identifier>ISSN: 0748-4658</identifier><identifier>EISSN: 1533-3876</identifier><identifier>DOI: 10.2514/3.23773</identifier><language>eng</language><publisher>Reston: American Institute of Aeronautics and Astronautics</publisher><ispartof>Journal of propulsion and power, 1994-09, Vol.10 (5), p.631-638</ispartof><rights>Copyright American Institute of Aeronautics and Astronautics Sep/Oct 1994</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a345t-8d2be0020fbbb601d69c3961288e163e7e73a61c7b9632fc6d215ffebc1d01093</citedby><cites>FETCH-LOGICAL-a345t-8d2be0020fbbb601d69c3961288e163e7e73a61c7b9632fc6d215ffebc1d01093</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids></links><search><creatorcontrib>Presser, C</creatorcontrib><creatorcontrib>Gupta, A. K</creatorcontrib><creatorcontrib>Semerjian, H. G</creatorcontrib><creatorcontrib>Avedisian, C. T</creatorcontrib><title>Droplet transport in a swirl-stabilized spray flame</title><title>Journal of propulsion and power</title><description>Droplet transport processes that occur in fuel sprays and spray flames were examined using laser velocimetry, phase Doppler interferometry, and laser sheet beam photography. Droplet size and velocity (axial and radial) distributions were obtained in a swirl-stabilized, pressure-atomized kerosene spray under nonburning and burning conditions. The results show that the introduction of swirl to the combustion air (under nonburning conditions) significantly modifies the spray structure and leads to the transport of smaller size droplets from downstream positions of the spray to upstream near the nozzle exit. Time-based velocity data at different spatial locations of the spray indicated some intermittency in the spray and clustering of droplets. In the center of the spray, near the nozzle exit, most of the droplets are recirculated; near the spray boundary, bimodal velocity distributions indicate the presence of recirculated droplets and droplets that arrive directly from the injector. Combustion results in a significant increase in droplet velocities, especially near the spray boundary where the flame sheet resides. The size of the recirculation zone is much reduced with combustion; however, a number of smaller droplets are still transported upstream. The data demonstrate the important role droplet transport plays in providing a fuel vapor feedback mechanism for flame stability. (Author)</description><issn>0748-4658</issn><issn>1533-3876</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1994</creationdate><recordtype>article</recordtype><recordid>eNpt0F9LwzAUBfAgCs4pfoWCovjQmeS2Sfoo8y8MfNHnkLQJZGRtTVJ0-_RWNxCGT_fh_jgcDkLnBM9oSYpbmFHgHA7QhJQAOQjODtEE80LkBSvFMTqJcYkxYYLxCYL70PXepCwF1ca-Cylzbaay-OmCz2NS2nm3MU0W-6DWmfVqZU7RkVU-mrPdnaL3x4e3-XO-eH16md8tcgVFmXLRUG0wpthqrRkmDatqqBihQhjCwHDDQTFSc10xoLZmDSWltUbXpMEEVzBFV9vcPnQfg4lJrlysjfeqNd0QJWUABaZ8hBd7cNkNoR27SQqEVlxUBR3V9VbVoYsxGCv74FYqrCXB8mc6CfJ3ulHebKVySv1l7d6yb6y0g_fJfKXRXv5n9yO_AXzGeII</recordid><startdate>19940901</startdate><enddate>19940901</enddate><creator>Presser, C</creator><creator>Gupta, A. K</creator><creator>Semerjian, H. G</creator><creator>Avedisian, C. T</creator><general>American Institute of Aeronautics and Astronautics</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7TB</scope><scope>8FD</scope><scope>FR3</scope><scope>H8D</scope><scope>L7M</scope></search><sort><creationdate>19940901</creationdate><title>Droplet transport in a swirl-stabilized spray flame</title><author>Presser, C ; Gupta, A. K ; Semerjian, H. G ; Avedisian, C. T</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a345t-8d2be0020fbbb601d69c3961288e163e7e73a61c7b9632fc6d215ffebc1d01093</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1994</creationdate><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Presser, C</creatorcontrib><creatorcontrib>Gupta, A. K</creatorcontrib><creatorcontrib>Semerjian, H. G</creatorcontrib><creatorcontrib>Avedisian, C. T</creatorcontrib><collection>CrossRef</collection><collection>Mechanical &amp; Transportation Engineering Abstracts</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Journal of propulsion and power</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Presser, C</au><au>Gupta, A. K</au><au>Semerjian, H. G</au><au>Avedisian, C. T</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Droplet transport in a swirl-stabilized spray flame</atitle><jtitle>Journal of propulsion and power</jtitle><date>1994-09-01</date><risdate>1994</risdate><volume>10</volume><issue>5</issue><spage>631</spage><epage>638</epage><pages>631-638</pages><issn>0748-4658</issn><eissn>1533-3876</eissn><abstract>Droplet transport processes that occur in fuel sprays and spray flames were examined using laser velocimetry, phase Doppler interferometry, and laser sheet beam photography. Droplet size and velocity (axial and radial) distributions were obtained in a swirl-stabilized, pressure-atomized kerosene spray under nonburning and burning conditions. The results show that the introduction of swirl to the combustion air (under nonburning conditions) significantly modifies the spray structure and leads to the transport of smaller size droplets from downstream positions of the spray to upstream near the nozzle exit. Time-based velocity data at different spatial locations of the spray indicated some intermittency in the spray and clustering of droplets. In the center of the spray, near the nozzle exit, most of the droplets are recirculated; near the spray boundary, bimodal velocity distributions indicate the presence of recirculated droplets and droplets that arrive directly from the injector. Combustion results in a significant increase in droplet velocities, especially near the spray boundary where the flame sheet resides. The size of the recirculation zone is much reduced with combustion; however, a number of smaller droplets are still transported upstream. The data demonstrate the important role droplet transport plays in providing a fuel vapor feedback mechanism for flame stability. (Author)</abstract><cop>Reston</cop><pub>American Institute of Aeronautics and Astronautics</pub><doi>10.2514/3.23773</doi><tpages>8</tpages></addata></record>
fulltext fulltext
identifier ISSN: 0748-4658
ispartof Journal of propulsion and power, 1994-09, Vol.10 (5), p.631-638
issn 0748-4658
1533-3876
language eng
recordid cdi_proquest_journals_2312978942
source Alma/SFX Local Collection
title Droplet transport in a swirl-stabilized spray flame
url https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2024-12-23T03%3A35%3A54IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_cross&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Droplet%20transport%20in%20a%20swirl-stabilized%20spray%20flame&rft.jtitle=Journal%20of%20propulsion%20and%20power&rft.au=Presser,%20C&rft.date=1994-09-01&rft.volume=10&rft.issue=5&rft.spage=631&rft.epage=638&rft.pages=631-638&rft.issn=0748-4658&rft.eissn=1533-3876&rft_id=info:doi/10.2514/3.23773&rft_dat=%3Cproquest_cross%3E2312978942%3C/proquest_cross%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=2312978942&rft_id=info:pmid/&rfr_iscdi=true