{"id":16951,"date":"2024-05-24T13:37:55","date_gmt":"2024-05-24T13:37:55","guid":{"rendered":"https:\/\/aerospacerepository.org\/?p=16951"},"modified":"2025-09-21T14:27:56","modified_gmt":"2025-09-21T14:27:56","slug":"development-of-an-empirical-correlation-for-ethanol-jet-in-crossflow-spray-profiles-in-transonic-and-supersonic-flows","status":"publish","type":"post","link":"https:\/\/aerospacerepository.org\/index.php\/2024\/05\/24\/development-of-an-empirical-correlation-for-ethanol-jet-in-crossflow-spray-profiles-in-transonic-and-supersonic-flows\/","title":{"rendered":"Development of an Empirical Correlation for Ethanol Jet in Crossflow Spray Profiles in Transonic and Supersonic Flows"},"content":{"rendered":"\n<p><strong>Aubrey MCKELVY, James BRAUN, Guillermo PANIAGUA-PEREZ, Etienne CHOQUET, Thierry ANDR\u00c9, Fran\u00e7ois FALEMPIN<\/strong><\/p>\n\n\n\n<p><strong>DOI Number: 10.82241\/ceas-hisst-2024-153<\/strong><\/p>\n\n\n\n<p><strong>Conference number: HiSST-2024-153<\/strong><\/p>\n\n\n\n<p>The complexity of two-phase interactions in the atomization process has resulted in the use of empirical correlations for the determination of spray features relevant to engine designers. This paper details the development of a correlation for liquid ethanol spray penetration from a plain-orifice injector with experimental validity across both the transonic and supersonic crossflow regimes. Penetration heights and spray transmittance are measured in a 23x17x54 cm linear test section with crossflow Mach numbers ranging from 0.3 to 0.8. Contoured 2D converging-diverging nozzles are inserted into the bottom of the test section to produce supersonic flow with a conically expanding flow path providing Mach 2 crossflows at the injector. An analytical derivation for a momentum flux ratio correction factor is used to collapse penetration heights across both the subsonic and supersonic regimes. The correlation utilizes a physics-based form to account for both near-field (x\/d 0-50) and far-field (x\/d 50-200) spray patterns that power-law correlations fail to capture. The performance of the correlation is finally compared to a selection of published correlations that are valid for similar flow conditions.<\/p>\n\n\n\n<p><a href=\"https:\/\/aerospacerepository.org\/wp-content\/uploads\/2024\/05\/HiSST-2024-153.pdf\">Read the full paper here<\/a><\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p><b>Aubrey MCKELVY, James BRAUN, Guillermo PANIAGUA-PEREZ, Etienne CHOQUET, Thierry ANDR\u00c9, Fran\u00e7ois FALEMPIN<\/b><\/p>\n<p>DOI Number: https:\/\/doi.org\/10.82241\/ceas-hisst-2024-153<\/p>\n<p>Conference number: HiSST-2024-153<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[993,1407,1414],"tags":[1654,1653,1655,1656],"class_list":["post-16951","post","type-post","status-publish","format-standard","hentry","category-events","category-11-hisst-2024","category-propulsion-systems-and-components-11-hisst-2024","tag-jet-in-crossflow","tag-penetration-depth","tag-spray-correlation","tag-transonic-flow","category-993","category-1407","category-1414","description-off"],"_links":{"self":[{"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/posts\/16951","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/comments?post=16951"}],"version-history":[{"count":4,"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/posts\/16951\/revisions"}],"predecessor-version":[{"id":21273,"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/posts\/16951\/revisions\/21273"}],"wp:attachment":[{"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/media?parent=16951"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/categories?post=16951"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/tags?post=16951"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}