{"created":"2023-06-20T15:05:07.579651+00:00","id":34375,"links":{},"metadata":{"_buckets":{"deposit":"082cc091-2d78-4d65-bf02-0d9ca242deef"},"_deposit":{"created_by":1,"id":"34375","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"34375"},"status":"published"},"_oai":{"id":"oai:jaxa.repo.nii.ac.jp:00034375","sets":["1887:1890","1896:1898:1899:1992"]},"author_link":["419489","419490","419488"],"item_9_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"1965-01","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"3","bibliographicPageEnd":"100","bibliographicPageStart":"83","bibliographicVolumeNumber":"30","bibliographic_titles":[{},{"bibliographic_title":"ISAS report/Institute of Space and Aeronautical Science,University of Tokyo","bibliographic_titleLang":"en"}]}]},"item_9_description_17":{"attribute_name":"抄録（英）","attribute_value_mlt":[{"subitem_description":"First the flow survey is made for the low-density hypersonic flow, which is achieved by a low-density operation of the gun tunnel (or free piston compression). In particular the measurements of flow velocity and, hence, of stagnation temperature are worked out by means of an explosion-wire technique and the flow survey done by traversing a free molecule calorimeter in the test flow region. With these diagnostics the characteristic feature of the test flow is investigated. It is found that, by a low-density operation of the present gun tunnel, the test flow of Mach number 10 and Reynolds number 650 (per cm) is achieved, which is applicable to experimental studies on low-density hypersonic flow problems. Secondly an experimental study is made concerning the shock-layer structure ahead of a sphere in a low-density hypersonic flow, achieved by the present gun tunnel. The scanning-electron-beam densitometer is developed to obtain a density distribution along a scanning path of the beam during one shot of the gun tunnel. By means of this device the density distribution across the shock layer is measured for a sphere of 12.4mm in radius, in which case the Reynolds Re_∞ is about 800. The present data exhibit a qualitative agreement with Lcvinsky-Yoshihara profile which was computed for argon flow of Mach number M=10 and Re_∞=10^3 and 10^2.","subitem_description_type":"Other"}]},"item_9_description_32":{"attribute_name":"資料番号","attribute_value_mlt":[{"subitem_description":"資料番号: SA2400496000","subitem_description_type":"Other"}]},"item_9_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"東京大学宇宙航空研究所"}]},"item_9_publisher_9":{"attribute_name":"出版者（英）","attribute_value_mlt":[{"subitem_publisher":"Institute of Space and Aeronautical Science,University of Tokyo"}]},"item_9_source_id_21":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"0372-1418","subitem_source_identifier_type":"ISSN"}]},"item_9_source_id_24":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AA00675986","subitem_source_identifier_type":"NCID"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"OGUCHI, Hakuro","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"HONMA, Hiroki","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"FUNABIKI, Katsushi","creatorNameLang":"en"}],"nameIdentifiers":[{}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2020-01-24"}],"displaytype":"detail","filename":"SA2400496.pdf","filesize":[{"value":"1.2 MB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"SA2400496.pdf","url":"https://jaxa.repo.nii.ac.jp/record/34375/files/SA2400496.pdf"},"version_id":"c357cd14-8fc3-4dc8-8932-0febd679339c"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"eng"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourcetype":"departmental bulletin paper","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"Experimental Studies in a Low Density Gun Tunnel Stream","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Experimental Studies in a Low Density Gun Tunnel Stream","subitem_title_language":"en"}]},"item_type_id":"9","owner":"1","path":["1890","1992"],"pubdate":{"attribute_name":"公開日","attribute_value":"2015-03-26"},"publish_date":"2015-03-26","publish_status":"0","recid":"34375","relation_version_is_last":true,"title":["Experimental Studies in a Low Density Gun Tunnel Stream"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-06-20T23:43:17.486181+00:00"}