{"id":2721,"date":"2021-07-12T23:25:35","date_gmt":"2021-07-12T14:25:35","guid":{"rendered":"https:\/\/c-mng.cwh.hokudai.ac.jp\/stl.eng\/Root\/?page_id=2721"},"modified":"2023-11-14T15:04:34","modified_gmt":"2023-11-14T06:04:34","slug":"aerodynamic_instability","status":"publish","type":"page","link":"https:\/\/c-mng.cwh.hokudai.ac.jp\/stl.eng\/Root\/en\/research\/aerodynamic_instability.html","title":{"rendered":"Aerodynamic instability"},"content":{"rendered":"<p><span style=\"color: #a0283a;\"><strong>Aerodynamic instability of capsule with thin and large aeroshell<img loading=\"lazy\" class=\" wp-image-2543 alignright\" src=\"https:\/\/c-mng.cwh.hokudai.ac.jp\/stl.eng\/Root\/wp-content\/uploads\/2021\/07\/OpensSRC1-300x133.png\" alt=\"\" width=\"219\" height=\"98\" srcset=\"https:\/\/c-mng.cwh.hokudai.ac.jp\/stl.eng\/Root\/wp-content\/uploads\/2021\/07\/OpensSRC1-300x133.png 300w, https:\/\/c-mng.cwh.hokudai.ac.jp\/stl.eng\/Root\/wp-content\/uploads\/2021\/07\/OpensSRC1-644x287.png 644w, https:\/\/c-mng.cwh.hokudai.ac.jp\/stl.eng\/Root\/wp-content\/uploads\/2021\/07\/OpensSRC1-768x342.png 768w, https:\/\/c-mng.cwh.hokudai.ac.jp\/stl.eng\/Root\/wp-content\/uploads\/2021\/07\/OpensSRC1.png 845w\" sizes=\"(max-width: 219px) 100vw, 219px\" \/><\/strong><\/span><br \/>\nA thin, large aeroshell technology has been proposed for an innovative reentry capsule. We are investigating the aerodynamic instability and mitigation methods using a coupled analysis approach.<\/p>\n<p style=\"text-align: center;\"><img loading=\"lazy\" class=\"alignnone size-full wp-image-2544\" src=\"https:\/\/c-mng.cwh.hokudai.ac.jp\/stl.eng\/Root\/wp-content\/uploads\/2021\/07\/anigif_50per.gif\" alt=\"\" width=\"400\" height=\"257\" \/><br \/>\nFlow field around capsule with thin and large aeroshell (Density distribution).<\/p>\n<p><span style=\"color: #a0283a;\"><strong>Aerodynamic simulation for Hayabusa-type reentry capsule<\/strong><\/span><br \/>\nHayabusa-type sample return capsule (SRC) is a candidate for application in future sample return missions. However, SRC exhibits aerodynamic instability in the transonic region. We are also investigating instability using high-performance computers and computational science approaches to mitigate it.<\/p>\n<p style=\"text-align: center;\"><img loading=\"lazy\" class=\"alignnone wp-image-1863\" src=\"https:\/\/cfml.eng.hokudai.ac.jp\/wp-content\/uploads\/2020\/01\/For_homepage-300x138.png\" alt=\"\" width=\"272\" height=\"125\" \/> <img loading=\"lazy\" class=\"alignnone wp-image-1864\" src=\"https:\/\/cfml.eng.hokudai.ac.jp\/wp-content\/uploads\/2020\/01\/For_homepage2-300x138.png\" alt=\"\" width=\"272\" height=\"125\" \/><\/p>\n<p style=\"text-align: center;\">Flow field around Hayabusa SRC at transonic speed.<\/p>\n<p><strong><span style=\"color: #a0283a;\">Related paper<\/span><\/strong><\/p>\n<ul>\n<li>Yusuke Takahashi and Kazuhiko Yamada, \u201cAerodynamic Heating Analysis of Sample Return Capsule in Future Trojan Asteroid Exploration\u201d, Journal of Thermophysics and Heat Transfer, American Institute of Aeronautics and Astronautics, Vol. 32, No. 3, July 2018, pp. 547- 559. DOI: 10.2514\/1.T4837.<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Aerodynamic instability of capsule with thin and large aeroshell A thin, large aeroshell technology has been p&#8230;<\/p>\n","protected":false},"author":2,"featured_media":0,"parent":2646,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_locale":"en_US","_original_post":"https:\/\/c-mng.cwh.hokudai.ac.jp\/stl.eng\/Root\/?page_id=2474"},"_links":{"self":[{"href":"https:\/\/c-mng.cwh.hokudai.ac.jp\/stl.eng\/Root\/wp-json\/wp\/v2\/pages\/2721"}],"collection":[{"href":"https:\/\/c-mng.cwh.hokudai.ac.jp\/stl.eng\/Root\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/c-mng.cwh.hokudai.ac.jp\/stl.eng\/Root\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/c-mng.cwh.hokudai.ac.jp\/stl.eng\/Root\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/c-mng.cwh.hokudai.ac.jp\/stl.eng\/Root\/wp-json\/wp\/v2\/comments?post=2721"}],"version-history":[{"count":7,"href":"https:\/\/c-mng.cwh.hokudai.ac.jp\/stl.eng\/Root\/wp-json\/wp\/v2\/pages\/2721\/revisions"}],"predecessor-version":[{"id":3181,"href":"https:\/\/c-mng.cwh.hokudai.ac.jp\/stl.eng\/Root\/wp-json\/wp\/v2\/pages\/2721\/revisions\/3181"}],"up":[{"embeddable":true,"href":"https:\/\/c-mng.cwh.hokudai.ac.jp\/stl.eng\/Root\/wp-json\/wp\/v2\/pages\/2646"}],"wp:attachment":[{"href":"https:\/\/c-mng.cwh.hokudai.ac.jp\/stl.eng\/Root\/wp-json\/wp\/v2\/media?parent=2721"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}