{"id":17258,"date":"2024-06-06T13:30:29","date_gmt":"2024-06-06T13:30:29","guid":{"rendered":"https:\/\/aerospacerepository.org\/?p=17258"},"modified":"2025-09-11T12:59:46","modified_gmt":"2025-09-11T12:59:46","slug":"eliminating-atomic-oxygen-from-rst-nozzle-simulations","status":"publish","type":"post","link":"https:\/\/aerospacerepository.org\/index.php\/2024\/06\/06\/eliminating-atomic-oxygen-from-rst-nozzle-simulations\/","title":{"rendered":"Eliminating Atomic Oxygen from RST Nozzle Simulations"},"content":{"rendered":"\n<p><strong>Tristan VANYAI, Nicholas GIBBONS<\/strong><\/p>\n\n\n\n<p><strong>DOI Number: N\/A<\/strong><\/p>\n\n\n\n<p><strong>Conference number: HiSST-2024-295<\/strong><\/p>\n\n\n\n<p>Correctly simulating the chemical composition in a test flow is a critical element of supersonic combustion experiments. Radicals generated in the stagnation region of a reflected shock tunnel could be seen as a key departure from the flow in flight experiments. However, there is evidence that only considering 5 chemical species in air gas models is artificially inflating the inferred concentration of atomic oxygen, O, in these test flows. By including a 6th species, NO2, the concentration of O is decreased by many orders of magnitude at conditions suitable for testing supersonic combustors. This paper presents comparisons between 5- and 6-species air schemes for simulations of nozzles and subsequent combustion experiments, that indicate the importance of including NO2 in reflected shock tunnel nozzle simulations.<\/p>\n\n\n\n<p><a href=\"https:\/\/aerospacerepository.org\/wp-content\/uploads\/2024\/06\/HiSST-2024-295.pdf\">Read the full paper here<\/a><\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p><b>Tristan VANYAI, Nicholas GIBBONS<\/b><\/p>\n<p>DOI Number: N\/A<\/p>\n<p>Conference number: HiSST-2024-295<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[993,1407,1414],"tags":[712,1852,546],"class_list":["post-17258","post","type-post","status-publish","format-standard","hentry","category-events","category-11-hisst-2024","category-propulsion-systems-and-components-11-hisst-2024","tag-combustion","tag-ground-testing-2","tag-hypersonics","category-993","category-1407","category-1414","description-off"],"_links":{"self":[{"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/posts\/17258","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=17258"}],"version-history":[{"count":2,"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/posts\/17258\/revisions"}],"predecessor-version":[{"id":20584,"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/posts\/17258\/revisions\/20584"}],"wp:attachment":[{"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/media?parent=17258"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/categories?post=17258"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/tags?post=17258"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}