{"_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": ["1890", "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_9_text_34": {"attribute_name": "メタデータ提供者", "attribute_value_mlt": [{"subitem_text_value": "メタデータ提供者: ISASNII"}]}, "item_9_text_35": {"attribute_name": "JAXAカテゴリ", "attribute_value_mlt": [{"subitem_text_value": "JAXAカテゴリ: 宇宙科学研究所"}]}, "item_9_text_43": {"attribute_name": "DSpaceコレクション番号", "attribute_value_mlt": [{"subitem_text_value": "DSpaceコレクション番号: 6"}]}, "item_creator": {"attribute_name": "著者", "attribute_type": "creator", "attribute_value_mlt": [{"creatorNames": [{"creatorName": "OGUCHI, Hakuro", "creatorNameLang": "en"}], "nameIdentifiers": [{"nameIdentifier": "419488", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "HONMA, Hiroki", "creatorNameLang": "en"}], "nameIdentifiers": [{"nameIdentifier": "419489", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "FUNABIKI, Katsushi", "creatorNameLang": "en"}], "nameIdentifiers": [{"nameIdentifier": "419490", "nameIdentifierScheme": "WEKO"}]}]}, "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", "download_preview_message": "", "file_order": 0, "filename": "SA2400496.pdf", "filesize": [{"value": "1.2 MB"}], "format": "application/pdf", "future_date_message": "", "is_thumbnail": false, "licensetype": "license_free", "mimetype": "application/pdf", "size": 1200000.0, "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"], "permalink_uri": "https://jaxa.repo.nii.ac.jp/records/34375", "pubdate": {"attribute_name": "公開日", "attribute_value": "2015-03-26"}, "publish_date": "2015-03-26", "publish_status": "0", "recid": "34375", "relation": {}, "relation_version_is_last": true, "title": ["Experimental Studies in a Low Density Gun Tunnel Stream"], "weko_shared_id": -1}