{"created":"2023-06-20T14:52:30.485397+00:00","id":20663,"links":{},"metadata":{"_buckets":{"deposit":"3b07380c-a283-4a50-889b-eb63c93e0c5b"},"_deposit":{"created_by":1,"id":"20663","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"20663"},"status":"published"},"_oai":{"id":"oai:jaxa.repo.nii.ac.jp:00020663","sets":["1543:1778:1793","1887:1891"]},"author_link":["197018","197014","197013","197017","197015","197016"],"item_5_alternative_title_1":{"attribute_name":"その他のタイトル","attribute_value_mlt":[{"subitem_alternative_title":"離散要素法を用いた掘削流の数値シミュレーション"}]},"item_5_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2003-11","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"56","bibliographicPageStart":"53","bibliographic_titles":[{"bibliographic_title":"第36回月・惑星シンポジウム"},{"bibliographic_title":"Proceedings of the 36th ISAS Lunar and Planetary Symposium","bibliographic_titleLang":"en"}]}]},"item_5_description_17":{"attribute_name":"抄録（英）","attribute_value_mlt":[{"subitem_description":"Excavation flow in impact cratering has been usually modeled by Maxwells Z-model. However few laboratory experiments and/or numerical simulations have been done to examine whether or not the Z-model's streamlines actually express the excavation flow. A numerical simulation of impact onto granular materials by the Discrete Element Method (DEM) is suitable to trace directly the trajectories of target particles. Then a numerical code was developed to simulate impact onto granular materials. The results show that the target particles move along the Z-model's streamlines in the following cases: Z = 3 (effective origin of flow (EOF) is located at the target surface) or Z = 2.7 (EOF is located at the depth of one projectile radius). These results indicate that the Z-model is a reasonable first-order quantitative approximation for excavation flow in impact cratering process.","subitem_description_type":"Other"}]},"item_5_description_32":{"attribute_name":"資料番号","attribute_value_mlt":[{"subitem_description":"資料番号: AA0046650014","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宇宙科学研究本部"}]},"item_5_publisher_9":{"attribute_name":"出版者（英）","attribute_value_mlt":[{"subitem_publisher":"Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA/ISAS)"}]},"item_5_text_6":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"東京大学 大学院理学系研究科"},{"subitem_text_value":"海洋科学技術センター 固体地球統合フロンティア研究システム"},{"subitem_text_value":"東京大学 大学院新領域創成科学研究科"}]},"item_5_text_7":{"attribute_name":"著者所属（英）","attribute_value_mlt":[{"subitem_text_language":"en","subitem_text_value":"University of Tokyo Graduate School of Science"},{"subitem_text_language":"en","subitem_text_value":"Japan Marine Science and Technology Center Institute for Frontier Research on Earth Evolution"},{"subitem_text_language":"en","subitem_text_value":"University of Tokyo Graduate School of Frontier Sciences"}]},"item_access_right":{"attribute_name":"アクセス権","attribute_value_mlt":[{"subitem_access_right":"metadata only access","subitem_access_right_uri":"http://purl.org/coar/access_right/c_14cb"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"和田, 浩二"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"千秋, 博紀"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"松井, 孝典"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Wada, Koji","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Senshu, Hiroki","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Matsui, Takafumi","creatorNameLang":"en"}],"nameIdentifiers":[{}]}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"DEM","subitem_subject_scheme":"Other"},{"subitem_subject":"掘削流","subitem_subject_scheme":"Other"},{"subitem_subject":"数値シミュレーション","subitem_subject_scheme":"Other"},{"subitem_subject":"モデル","subitem_subject_scheme":"Other"},{"subitem_subject":"クレーター形成","subitem_subject_scheme":"Other"},{"subitem_subject":"粒子軌道","subitem_subject_scheme":"Other"},{"subitem_subject":"粒状物質","subitem_subject_scheme":"Other"},{"subitem_subject":"衝突","subitem_subject_scheme":"Other"},{"subitem_subject":"DEM","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"excavation flow","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"numerical simulation","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"model","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"cratering","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"particle trajectory","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"granular material","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"impact","subitem_subject_language":"en","subitem_subject_scheme":"Other"}]},"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":"conference paper","resourceuri":"http://purl.org/coar/resource_type/c_5794"}]},"item_title":"Numerical simulation of excavation flow using the discrete element method","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Numerical simulation of excavation flow using the discrete element method","subitem_title_language":"en"}]},"item_type_id":"5","owner":"1","path":["1793","1891"],"pubdate":{"attribute_name":"公開日","attribute_value":"2015-03-26"},"publish_date":"2015-03-26","publish_status":"0","recid":"20663","relation_version_is_last":true,"title":["Numerical simulation of excavation flow using the discrete element method"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-06-21T03:47:02.737403+00:00"}