{"id":22890,"date":"2025-10-24T12:13:12","date_gmt":"2025-10-24T12:13:12","guid":{"rendered":"https:\/\/aerospacerepository.org\/?p=22890"},"modified":"2025-10-24T12:13:13","modified_gmt":"2025-10-24T12:13:13","slug":"experimental-investigation-of-a-disk-shaped-rdre-operating-with-liquid-propane-and-liquid-nitrous-oxide","status":"publish","type":"post","link":"https:\/\/aerospacerepository.org\/index.php\/2025\/10\/24\/experimental-investigation-of-a-disk-shaped-rdre-operating-with-liquid-propane-and-liquid-nitrous-oxide\/","title":{"rendered":"Experimental Investigation of a Disk-Shaped RDRE Operating with Liquid Propane and Liquid Nitrous Oxide"},"content":{"rendered":"\n<p><strong>Gyeong-Ui MO, Keon-Hyeong LEE, Su-Wan CHOI, Min-Seon JO, Jeong-Yeol CHOI<\/strong><\/p>\n\n\n\n<p><strong>DOI Number: N\/A<\/strong><\/p>\n\n\n\n<p><strong>Conference number: HiSST-2025-145<\/strong><\/p>\n\n\n\n<p>This study experimentally investigates the operating characteristics of a disk-shaped rotating detonation rocket engine (Disk-RDRE) fueled with liquid nitrous oxide (N\u2082O) and propane (C\u2083H\u2088), exploiting their inherent self-pressurizing properties. Two operating conditions were examined by varying the total mass flow rate while maintaining a fixed equivalence ratio of 1.18. Combustion dynamics were captured using high-speed imaging in conjunction with FFT and STFT analyses to assess detonation wave propagation and frequency characteristics. In both cases, the engine sustained a stable single-wave detonation mode, with operating frequencies on the order of 6\u20137 kHz and propagation velocities<br>reaching approximately 80% of the theoretical Chapman\u2013Jouguet (C\u2013J) velocity. Visualization further confirmed that the detonation front preserved a consistent rotational direction and propagated tangentially along the combustor wall. These results experimentally validate the feasibility of stable liquid-propellant operation in a disk-shaped RDE and provide a foundation for the future development of liquid-based detonation propulsion systems.<\/p>\n\n\n\n<p><a href=\"https:\/\/aerospacerepository.org\/wp-content\/uploads\/2025\/10\/HISST2025_145_paper.pdf\">Read the full paper here<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p><b>Gyeong-Ui MO, Keon-Hyeong LEE, Su-Wan CHOI, Min-Seon JO, Jeong-Yeol CHOI<\/b><\/p>\n<p>DOI Number: N\/A<\/p>\n<p>Conference number: HiSST-2025-145<\/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":[3632,3631,3630,3629],"class_list":["post-22890","post","type-post","status-publish","format-standard","hentry","category-events","category-1-hisst-2025","category-propulsion-systems-components","tag-detonation-wave-propagation","tag-disk-rdre","tag-liquid-propellant","tag-self-pressurized-propellant","category-993","category-3361","category-3363","description-off"],"_links":{"self":[{"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/posts\/22890","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=22890"}],"version-history":[{"count":1,"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/posts\/22890\/revisions"}],"predecessor-version":[{"id":22892,"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/posts\/22890\/revisions\/22892"}],"wp:attachment":[{"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/media?parent=22890"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/categories?post=22890"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/tags?post=22890"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}