{"created":"2023-06-20T14:37:25.961306+00:00","id":3842,"links":{},"metadata":{"_buckets":{"deposit":"ec1788be-eb5b-4ebc-aca1-82c30ec68767"},"_deposit":{"created_by":1,"id":"3842","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"3842"},"status":"published"},"_oai":{"id":"oai:jaxa.repo.nii.ac.jp:00003842","sets":["1398:1530:1535","1543:1874:1879","1887:1891","9:789:855:859"]},"author_link":["16191","16189","16188","16190"],"item_5_alternative_title_2":{"attribute_name":"その他のタイトル（英）","attribute_value_mlt":[{"subitem_alternative_title":"Numerical Study on Rise Time Prediction of Sonic Boom with Thermal Nonequilibrium"}]},"item_5_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2015-03-25","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"40","bibliographicPageStart":"35","bibliographicVolumeNumber":"JAXA-SP-14-010","bibliographic_titles":[{"bibliographic_title":"宇宙航空研究開発機構特別資料: 第46回流体力学講演会/第32回航空宇宙数値シミュレーション技術シンポジウム論文集"},{"bibliographic_title":"JAXA Special Publication: Proceedings of the 46th Fluid Dynamics Conference / 32nd Aerospace Numerical Simulation Symposium","bibliographic_titleLang":"en"}]}]},"item_5_description_14":{"attribute_name":"会議概要（会議名, 開催地, 会期, 主催者等）","attribute_value_mlt":[{"subitem_description":"第46回流体力学講演会/第32回航空宇宙数値シミュレーション技術シンポジウム (2014年7月3日-4日. 弘前文化センター), 弘前市, 青森県","subitem_description_type":"Other"}]},"item_5_description_15":{"attribute_name":"会議概要（会議名, 開催地, 会期, 主催者等）（英）","attribute_value_mlt":[{"subitem_description":"46th Fluid Dynamics Conference / 32nd Aerospace Numerical Simulation Symposium (July 3-4, 2014. Hirosaki Bunka Center), Hirosaki, Aomori, Japan","subitem_description_type":"Other"}]},"item_5_description_17":{"attribute_name":"抄録（英）","attribute_value_mlt":[{"subitem_description":"In order to investigate a formation process of rise time in the sonic boom propagation, axi-symmetric Euler analyses with thermal nonequilibrium have been numerically conducted. In the thermal nonequilibrium model, the harmonic oscillation is assumed and the Landau-Teller relaxation model is used to take into account the effect of molecular relaxation with respect to molecules of O2 and N2. The flowfield around an axi-symmetric paraboloid is solved in the computational domain extending from the near field around the body to the normal distance of 1000 times larger than its length from the body axis. The solution adaptive grid is constructed to align the grid lines to both the front and rear shock waves generated from the body. The atmospheric conditions are set as the geometric mean of the atmospheric properties at an altitude of 25 km and at the ground. The freestream Mach numbers are 2 and 5. The results show that the configuration of the shock wave is mainly changed by the effect of the attenuation with the sound absorption of N2. The pressure rise of the shock wave in the nonequilibrium case is lower than that in the equilibrium case. Moreover, the rise time at the far field increases in proportion to the normal distance from the body axis, though it does not change at the near field around the body. In case that the thermal nonequilibrium is assumed, the rise time depends on not the Mach number but the maximum pressure rise caused by the shock wave. Then, it is shown that the rise time at Mach 2 is longer than that at Mach 5 in the whole domain, when the radial distance from the body axis is the same in both cases.","subitem_description_type":"Other"}]},"item_5_description_18":{"attribute_name":"内容記述","attribute_value_mlt":[{"subitem_description":"形態: カラー図版あり","subitem_description_type":"Other"}]},"item_5_description_19":{"attribute_name":"内容記述（英）","attribute_value_mlt":[{"subitem_description":"Physical characteristics: Original contains color illustrations","subitem_description_type":"Other"}]},"item_5_description_32":{"attribute_name":"資料番号","attribute_value_mlt":[{"subitem_description":"資料番号: AA1530023007","subitem_description_type":"Other"}]},"item_5_description_33":{"attribute_name":"レポート番号","attribute_value_mlt":[{"subitem_description":"レポート番号: JAXA-SP-14-010","subitem_description_type":"Other"}]},"item_5_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"宇宙航空研究開発機構(JAXA)"}]},"item_5_publisher_9":{"attribute_name":"出版者（英）","attribute_value_mlt":[{"subitem_publisher":"Japan Aerospace Exploration Agency (JAXA)"}]},"item_5_source_id_21":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"1349-113X","subitem_source_identifier_type":"ISSN"}]},"item_5_source_id_24":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AA11984031","subitem_source_identifier_type":"NCID"}]},"item_5_text_6":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"東京大学"},{"subitem_text_value":"東京大学"}]},"item_5_text_7":{"attribute_name":"著者所属（英）","attribute_value_mlt":[{"subitem_text_language":"en","subitem_text_value":"The University of Tokyo"},{"subitem_text_language":"en","subitem_text_value":"The University of Tokyo"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"山下, 礼"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"鈴木, 宏二郎"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Yamashita, Rei","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Suzuki, Kojiro","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":"2020-01-16"}],"displaytype":"detail","filename":"AA1530023007.pdf","filesize":[{"value":"1.4 MB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"AA1530023007.pdf","url":"https://jaxa.repo.nii.ac.jp/record/3842/files/AA1530023007.pdf"},"version_id":"cba2c1fb-1c91-449b-80d2-9a9ecf4361bb"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourcetype":"conference paper","resourceuri":"http://purl.org/coar/resource_type/c_5794"}]},"item_title":"熱的非平衡モデルによるソニックブームRise time予測に関する数値的研究","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"熱的非平衡モデルによるソニックブームRise time予測に関する数値的研究"}]},"item_type_id":"5","owner":"1","path":["859","1535","1879","1891"],"pubdate":{"attribute_name":"公開日","attribute_value":"2015-04-28"},"publish_date":"2015-04-28","publish_status":"0","recid":"3842","relation_version_is_last":true,"title":["熱的非平衡モデルによるソニックブームRise time予測に関する数値的研究"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-06-21T08:53:45.133273+00:00"}