{"id":22690,"date":"2025-10-22T15:26:18","date_gmt":"2025-10-22T15:26:18","guid":{"rendered":"https:\/\/aerospacerepository.org\/?p=22690"},"modified":"2025-10-22T15:26:19","modified_gmt":"2025-10-22T15:26:19","slug":"onera-cea-joint-research-effort-on-hypersonic-separated-flowstransition-an-experimental-and-computational-analysis","status":"publish","type":"post","link":"https:\/\/aerospacerepository.org\/index.php\/2025\/10\/22\/onera-cea-joint-research-effort-on-hypersonic-separated-flowstransition-an-experimental-and-computational-analysis\/","title":{"rendered":"ONERA\/CEA Joint Research Effort on Hypersonic Separated FlowsTransition : An Experimental and Computational Analysis"},"content":{"rendered":"\n<p><strong>Cl\u00e9ment CAILLAUD, Mathieu LUGRIN, S\u00e9bastien ESQUIEU<\/strong><\/p>\n\n\n\n<p><strong>DOI Number: N\/A<\/strong><\/p>\n\n\n\n<p><strong>Conference number: HiSST-2025-224<\/strong><\/p>\n\n\n\n<p>This study investigates the transition to turbulence for a Cone-Cylinder-Flare (CCF) geometry in the hypersonic regime at Mach 7. Experimental and numerical analyses were conducted in a joint collaboration between CEA and ONERA in order to probe flow dynamics across a wide range of Reynolds numbers. High-frequency wall-pressure and Schlieren measurements were used to identify key instabilities, including first- and second-mode waves, and their non-linear interactions. Resolvent analysis and global stability theory were employed to characterize the dominant mechanisms driving transition. The results highlight the role of Reynolds number and flow topology in determining transition scenarios, providing insights into hypersonic boundary layer instabilities and their implications for aerodynamic design.<\/p>\n\n\n\n<p><a href=\"https:\/\/aerospacerepository.org\/wp-content\/uploads\/2025\/10\/HISST2025_224_paper.pdf\">Read the full paper here<\/a><\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p><b>Cl\u00e9ment CAILLAUD, Mathieu LUGRIN, S\u00e9bastien ESQUIEU<\/b><\/p>\n<p>DOI Number: N\/A<\/p>\n<p>Conference number: HiSST-2025-224<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[993,3367,3361],"tags":[3549,440,1485,580],"class_list":["post-22690","post","type-post","status-publish","format-standard","hentry","category-events","category-high-speed-aerodynamics-and-aerothermodynamics-with-application-to-hypersonic-regimes","category-1-hisst-2025","tag-experiments","tag-hypersonic","tag-simulation","tag-transition","category-993","category-3367","category-3361","description-off"],"_links":{"self":[{"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/posts\/22690","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=22690"}],"version-history":[{"count":1,"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/posts\/22690\/revisions"}],"predecessor-version":[{"id":22692,"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/posts\/22690\/revisions\/22692"}],"wp:attachment":[{"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/media?parent=22690"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/categories?post=22690"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/tags?post=22690"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}