{"id":16220,"date":"2024-04-12T12:48:47","date_gmt":"2024-04-12T12:48:47","guid":{"rendered":"https:\/\/aerospacerepository.org\/?p=16220"},"modified":"2024-04-12T12:48:48","modified_gmt":"2024-04-12T12:48:48","slug":"global-linear-stability-of-laminar-supersonic-flow-over-planar-and-axisymmetric-compression-corners","status":"publish","type":"post","link":"https:\/\/aerospacerepository.org\/index.php\/2024\/04\/12\/global-linear-stability-of-laminar-supersonic-flow-over-planar-and-axisymmetric-compression-corners\/","title":{"rendered":"Global linear stability of laminar, supersonic flow over planar and axisymmetric compression corners"},"content":{"rendered":"\n<p><strong>Nicolas Cerulus, Helio Quintanilha Jr, Vassilis Theofilis<\/strong><\/p>\n\n\n\n<p><strong>DOI Number XXX-YYY-ZZZ<\/strong><\/p>\n\n\n\n<p><strong>Conference Number HiSST-2022-301<\/strong><\/p>\n\n\n\n<p>Linear modal global instability analyses of planar and axisymmetric, laminar compression corner flows<br>are discussed at supersonic conditions. Steady basic flows have been computed with the OpenFOAM<br>package and results were compared with existing literature and independently performed high-order<br>direct numerical simulations. Global stability analysis reveals the leading two- and three-dimensional<br>eigenmodes in both planar and axisymmetric compression corners and permits comparisons of the respective amplitude functions. The existence of increasingly complex viscous structures inside the laminar separation bubble, confined underneath the shock layer, is demonstrated, and the communication<br>between these structures and the shock layer, recently also seen in kinetic theory simulations [40], is<br>established. This qualitative behaviour is found to be consistently present in both planar and axisymmetric compression corners, the main quantitative difference between the two configurations being that,<br>at the same nominal free-stream conditions, pressure relief makes the axisymmetric flow more stable<br>than its planar counterpart.<\/p>\n\n\n\n<p><a href=\"https:\/\/aerospacerepository.org\/wp-content\/uploads\/2023\/10\/HiSST-2022-301.pdf\" data-type=\"link\" data-id=\"https:\/\/aerospacerepository.org\/wp-content\/uploads\/2023\/10\/HiSST-2022-301.pdf\">Read the full paper ><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p><b>Nicolas Cerulus, Helio Quintanilha Jr, Vassilis Theofilis<\/b><\/p>\n<p>DOI Number XXX-YYY-ZZZ<\/p>\n<p>Conference Number HiSST-2022-301<\/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":[],"class_list":["post-16220","post","type-post","status-publish","format-standard","hentry","category-events","category-hisst-2022","category-hypersonic-fundamentals-and-history-hisst-2022","category-993","category-1006","category-1010","description-off"],"_links":{"self":[{"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/posts\/16220","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=16220"}],"version-history":[{"count":1,"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/posts\/16220\/revisions"}],"predecessor-version":[{"id":16221,"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/posts\/16220\/revisions\/16221"}],"wp:attachment":[{"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/media?parent=16220"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/categories?post=16220"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/tags?post=16220"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}