{"id":16266,"date":"2024-04-12T13:38:03","date_gmt":"2024-04-12T13:38:03","guid":{"rendered":"https:\/\/aerospacerepository.org\/?p=16266"},"modified":"2024-04-12T18:30:57","modified_gmt":"2024-04-12T18:30:57","slug":"experimental-investigation-of-the-effect-of-steps-and-gaps-on-hypersonicvehicles","status":"publish","type":"post","link":"https:\/\/aerospacerepository.org\/index.php\/2024\/04\/12\/experimental-investigation-of-the-effect-of-steps-and-gaps-on-hypersonicvehicles\/","title":{"rendered":"Experimental Investigation of the Effect of Steps and Gaps on Hypersonic Vehicles"},"content":{"rendered":"\n<p><strong>William Ivison, Chris Hambidge, Matthew McGilvray, Jim Merrifield, Johan Steelant<\/strong><\/p>\n\n\n\n<p><strong>DOI Number XXX-YYY-ZZZ<\/strong><\/p>\n\n\n\n<p><strong>Conference Number HiSST-2022-398<\/strong><\/p>\n\n\n\n<p>The design of hypersonic vehicles typically incorporates the use of simple, geometric shapes with smooth<br>surfaces. There are many reasons why aircraft cannot have perfectly smooth surfaces with small,<br>unavoidable imperfections frequently being present. These can appear in many forms, such as gaps<br>between tiles and rivets joining different panels. Surface features like this are mainly detrimental to<br>aircraft performance for two reasons: they can cause premature boundary layer transition, leading to<br>higher integrated heat loads and unexpected aerodynamic loads\u037e and they cause highly localised areas<br>of heat flux augmentation \u2013 up to many times the undisturbed level. This work is part of a project<br>which aims to characterise some of these effects using a combination of experimental and numerical<br>techniques with the overall aim being to produce useful engineering level correlations for use in vehicle<br>design. This paper presents initial experiments performed in the Oxford High Density Tunnel (HDT).<br>Heat flux and pressure data have been acquired for a range of step and cavity geometries, and capability<br>of a sophisticated experimental model has been shown.<\/p>\n\n\n\n<p><a href=\"https:\/\/aerospacerepository.org\/wp-content\/uploads\/2023\/10\/HiSST-2022-398.pdf\" data-type=\"link\" data-id=\"https:\/\/aerospacerepository.org\/wp-content\/uploads\/2023\/10\/HiSST-2022-398.pdf\">Read the full paper ><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p><b>William Ivison, Chris Hambidge, Matthew McGilvray, Jim Merrifield, Johan Steelant<\/b><\/p>\n<p>DOI Number XXX-YYY-ZZZ<\/p>\n<p>Conference Number HiSST-2022-398<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[993,1008,1006],"tags":[1235,502,480,1236],"class_list":["post-16266","post","type-post","status-publish","format-standard","hentry","category-events","category-high-speed-aerodynamics-and-aerothermodynamics-hisst-2022","category-hisst-2022","tag-boundary-layer-transition","tag-flat-plate","tag-heat-flux","tag-step","category-993","category-1008","category-1006","description-off"],"_links":{"self":[{"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/posts\/16266","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=16266"}],"version-history":[{"count":2,"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/posts\/16266\/revisions"}],"predecessor-version":[{"id":16269,"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/posts\/16266\/revisions\/16269"}],"wp:attachment":[{"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/media?parent=16266"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/categories?post=16266"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/tags?post=16266"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}