{"id":16207,"date":"2024-04-12T12:25:20","date_gmt":"2024-04-12T12:25:20","guid":{"rendered":"https:\/\/aerospacerepository.org\/?p=16207"},"modified":"2024-04-12T12:25:21","modified_gmt":"2024-04-12T12:25:21","slug":"cfd-of-axis-symmetric-aft-wall-angle-cavities-in-scramjets","status":"publish","type":"post","link":"https:\/\/aerospacerepository.org\/index.php\/2024\/04\/12\/cfd-of-axis-symmetric-aft-wall-angle-cavities-in-scramjets\/","title":{"rendered":"CFD OF AXIS SYMMETRIC AFT WALL ANGLE CAVITIES IN SCRAMJETS\u00a0"},"content":{"rendered":"\n<p><strong>Naresh Relangi, Antonella Ingenito, Jeyakumar S<\/strong><\/p>\n\n\n\n<p><strong>DOI Number XXX-YYY-ZZZ<\/strong><\/p>\n\n\n\n<p><strong>Conference Number HiSST-2022-266<\/strong><\/p>\n\n\n\n<p>The interest in hypersonic flights lies in the possibility of reaching antipodal terrestrial distances in about<br>a couple of hours at Mach 8. To make this technology ready, some issues still need to be addressed.<br>At supersonic flight speeds, the air residence time is of the order of 1 millisecond: fuel and air must be<br>mixed and burned completely in a very short time. The flow field within the combustor of the scramjet<br>engine is very complex and poses a considerable challenge in the design and development of a<br>supersonic combustor with optimized geometry. This combustor must promote sufficient mixing of fuelair and flame stabilisation avoiding excessive pressure losses and consequently penalties in thrust<br>efficiency. Therefore, the development of scramjet engines poses considerable challenges and requires<br>multidisciplinary design, analysis, modeling, simulation and system optimization. Several studies have<br>been carried out worldwide, and various concepts have been suggested for scramjet combustor<br>configurations to overcome the limitations given by the short flow residence time. In this paper,<br>performance of an innovative axisymmetric configuration has been numerically investigated by means<br>of LES. Results show that a combustion efficiency of 80% may be attained assuming an upstream<br>injection into the cavity.<\/p>\n\n\n\n<p><a href=\"https:\/\/aerospacerepository.org\/wp-content\/uploads\/2023\/10\/HiSST-2022-266.pdf\" data-type=\"link\" data-id=\"https:\/\/aerospacerepository.org\/wp-content\/uploads\/2023\/10\/HiSST-2022-266.pdf\">Read the full paper > <\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p><b>Naresh Relangi, Antonella Ingenito, Jeyakumar S<\/b><\/p>\n<p>DOI Number XXX-YYY-ZZZ<\/p>\n<p>Conference Number HiSST-2022-266<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[993,1006,1010],"tags":[1170,1171,1167,1166,614,1169,1168],"class_list":["post-16207","post","type-post","status-publish","format-standard","hentry","category-events","category-hisst-2022","category-hypersonic-fundamentals-and-history-hisst-2022","tag-axisymmetric-aft-wall-cavity","tag-combustion-efficiency","tag-fueling-technique","tag-les","tag-scramjet","tag-vortex-shedding","tag-wall-pressure","category-993","category-1006","category-1010","description-off"],"_links":{"self":[{"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/posts\/16207","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\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/comments?post=16207"}],"version-history":[{"count":1,"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/posts\/16207\/revisions"}],"predecessor-version":[{"id":16208,"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/posts\/16207\/revisions\/16208"}],"wp:attachment":[{"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/media?parent=16207"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/categories?post=16207"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/tags?post=16207"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}