{"id":22450,"date":"2025-10-21T11:07:46","date_gmt":"2025-10-21T11:07:46","guid":{"rendered":"https:\/\/aerospacerepository.org\/?p=22450"},"modified":"2025-10-21T11:07:47","modified_gmt":"2025-10-21T11:07:47","slug":"ramjet-to-scramjet-transition-a-large-eddy-simulation-study","status":"publish","type":"post","link":"https:\/\/aerospacerepository.org\/index.php\/2025\/10\/21\/ramjet-to-scramjet-transition-a-large-eddy-simulation-study\/","title":{"rendered":"Ramjet to Scramjet Transition \u2013 A Large Eddy Simulation Study"},"content":{"rendered":"\n<p><strong>Christer FUREBY<\/strong><\/p>\n\n\n\n<p><strong>DOI Number: N\/A<\/strong><\/p>\n\n\n\n<p><strong>Conference number: HiSST-2025-334<\/strong><\/p>\n\n\n\n<p>The dual-mode ramjet engine is a key candidate for hypersonic propulsion due to its ability to operate across a wide Mach number range. It requires a turbojet for low-speed operations (Ma\u22722), while functioning as a thermally choked ramjet at moderate speeds (Ma\u22483 to 4) and as a scramjet at high speeds (Ma\u22485 to 8). Transitions between these modes are critical: the turbojet-to-ramjet shift is relatively controllable, but the ramjet-to-scramjet transition is complex and governed by aerothermodynamics. This study uses Large Eddy Simulations (LES) to support experimental work by Fotia &amp; Driscoll, aiming to deepen understanding of this transition. The simulations show good agreement with experimental<br>data and reveal detailed insights into flow behaviour and flame stabilization mechanisms during the ramjet to scramjet mode shift.<\/p>\n\n\n\n<p><a href=\"https:\/\/aerospacerepository.org\/wp-content\/uploads\/2025\/10\/HISST2025_334_paper.pdf\">Read the full paper here<\/a><\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p><b>Christer FUREBY<\/b><\/p>\n<p>DOI Number: N\/A<\/p>\n<p>Conference number: HiSST-2025-334<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[993,3361,3363],"tags":[469,3403],"class_list":["post-22450","post","type-post","status-publish","format-standard","hentry","category-events","category-1-hisst-2025","category-propulsion-systems-components","tag-large-eddy-simulation","tag-ramjet-to-scramjet-transition","category-993","category-3361","category-3363","description-off"],"_links":{"self":[{"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/posts\/22450","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=22450"}],"version-history":[{"count":1,"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/posts\/22450\/revisions"}],"predecessor-version":[{"id":22452,"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/posts\/22450\/revisions\/22452"}],"wp:attachment":[{"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/media?parent=22450"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/categories?post=22450"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/tags?post=22450"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}