{"created":"2023-06-20T15:17:10.668190+00:00","id":47329,"links":{},"metadata":{"_buckets":{"deposit":"44f1fbcd-3506-4475-bd73-bf0693ff4b79"},"_deposit":{"created_by":1,"id":"47329","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"47329"},"status":"published"},"_oai":{"id":"oai:jaxa.repo.nii.ac.jp:00047329","sets":["1398:1530:2108","1543:1874:2109","1887:1891","9:789:2068:2106"]},"author_link":["532150","532151"],"item_5_alternative_title_2":{"attribute_name":"その他のタイトル（英）","attribute_value_mlt":[{"subitem_alternative_title":"Accuracy Verification for the Inhomogeneous Wave Equation Discretized by a Finite Difference Scheme on Homogeneous Cartesian Grid"}]},"item_5_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2021-02-08","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"57","bibliographicPageStart":"53","bibliographicVolumeNumber":"JAXA-SP-20-008","bibliographic_titles":[{"bibliographic_title":"宇宙航空研究開発機構特別資料: 流体力学講演会/航空宇宙数値シミュレーション技術シンポジウム2020オンライン論文集"},{"bibliographic_title":"JAXA Special Publication: Proceedings of Fluid Dynamics Conference / Aerospace Numerical Simulation Symposium 2020 Online","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":"流体力学講演会/航空宇宙数値シミュレーション技術シンポジウム2020オンライン (2020年9月28日-30日. 日本航空宇宙学会 : 宇宙航空研究開発機構(JAXA)オンライン会議)","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":"Fluid Dynamics Conference / Aerospace Numerical Simulation Symposium 2020 Online (September 28-30, 2020. The Japan Society for Aeronautical and Space Sciences : Japan Aerospace Exploration Agency (JAXA), Online meeting)","subitem_description_type":"Other"}]},"item_5_description_17":{"attribute_name":"抄録（英）","attribute_value_mlt":[{"subitem_description":"The inhomogeneous wave equation (IWE) solver has been developed in JAXA in the framework of discretization on homogeneous Cartesian grid, to solve acoustic propagation with local convection effects, as well as acoustic interference with solid wall, such as reflection, diffraction, and scattering. In this study, the order of accuracy of the present IWE solver is investigated. First, the practical accuracy in the acoustic scattering on an isolated vortex is numerically evaluated as a verification study for the acoustic propagation in inhomogeneous flow. The resultant order of accuracy is close to 6, which coincides with the discretization error of convection terms. In addition, the accuracy of the immersed boundary method implemented in the present solver is assessed by using a one-dimensional wall reflection problem. The supposed accuracy of immersed boundary is second order at most, as second-order accurate schemes are used for the Neumann boundary condition, and linear interpolation is utilized to identify the wall location. However, the attained accuracy in the one-dimensional problem is third order. Moreover, in some specific cases, fifth-order accuracy is obtained. The third-order accuracy is also achieved in a two-dimensional problem with wall reflection.","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: AA2030013008","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-20-008","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_22":{"attribute_name":"ISSNONLINE","attribute_value_mlt":[{"subitem_source_identifier":"2433-2232","subitem_source_identifier_type":"ISSN"}]},"item_5_text_6":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"宇宙航空研究開発機構航空技術部門(JAXA)"}]},"item_5_text_7":{"attribute_name":"著者所属（英）","attribute_value_mlt":[{"subitem_text_language":"en","subitem_text_value":"Aeronautical Technology Directorate, Japan Aerospace Exploration Agency (JAXA)"}]},"item_5_version_type_30":{"attribute_name":"著者版フラグ","attribute_value_mlt":[{"subitem_version_resource":"http://purl.org/coar/version/c_970fb48d4fbd8a85","subitem_version_type":"VoR"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"池田, 友明"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"IKEDA, Tomoaki","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":"2021-02-08"}],"displaytype":"detail","filename":"AA2030013008.pdf","filesize":[{"value":"1.0 MB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"AA2030013008.pdf","url":"https://jaxa.repo.nii.ac.jp/record/47329/files/AA2030013008.pdf"},"version_id":"83e72587-9492-479f-94ca-11f00317bf60"}]},"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":"直交格子上の有限差分法による非一様波動方程式解法の精度検証","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"直交格子上の有限差分法による非一様波動方程式解法の精度検証"}]},"item_type_id":"5","owner":"1","path":["1891","2106","2108","2109"],"pubdate":{"attribute_name":"公開日","attribute_value":"2021-02-08"},"publish_date":"2021-02-08","publish_status":"0","recid":"47329","relation_version_is_last":true,"title":["直交格子上の有限差分法による非一様波動方程式解法の精度検証"],"weko_creator_id":"1","weko_shared_id":1},"updated":"2023-06-20T19:41:12.474878+00:00"}