{"created":"2023-06-26T11:02:09.065837+00:00","id":2931,"links":{},"metadata":{"_buckets":{"deposit":"0171c20c-c2c1-4471-a5da-33fa88624043"},"_deposit":{"created_by":22,"id":"2931","owners":[22],"pid":{"revision_id":0,"type":"depid","value":"2931"},"status":"published"},"_oai":{"id":"oai:oist.repo.nii.ac.jp:00002931","sets":["7:241"]},"author_link":[],"control_number":"2931","item_10006_creator_2":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"服部 優菜","creatorNameLang":"ja"}]}]},"item_10006_creator_3":{"attribute_name":"著者(英)","attribute_type":"creator","attribute_value_mlt":[{"creatorAffiliations":[{"affiliationNames":[{"affiliationNameLang":"en"}]}],"creatorNames":[{"creatorName":"Yuna, Hattori","creatorNameLang":"en"}]}]},"item_10006_date_granted_11":{"attribute_name":"Degree Conferral Date","attribute_value_mlt":[{"subitem_dategranted":"2023-03-31"}]},"item_10006_degree_grantor_9":{"attribute_name":"Degree Conferrral Institution","attribute_value_mlt":[{"subitem_degreegrantor":[{"subitem_degreegrantor_name":"Okinawa Institute of Science and Technology Graduate University"}],"subitem_degreegrantor_identifier":[{"subitem_degreegrantor_identifier_name":"38005","subitem_degreegrantor_identifier_scheme":"kakenhi"}]}]},"item_10006_degree_name_8":{"attribute_name":"Degree","attribute_value_mlt":[{"subitem_degreename":"Doctor of Philosophy"}]},"item_10006_description_7":{"attribute_name":"Abstract","attribute_value_mlt":[{"subitem_description":"A wide range of dynamical phenomena in nature are self-similar. This remarkable property entails that scaled versions of a phenomenon conform onto themselves. It not only affords simplified mathematical analysis but also reveals the physical underpinnings of the phenomenon. In fluid flows, a textbook example of such phenomena is the boundary-layer flow over a rigid boundary---the Blasius boundary layer flow. In this thesis, we experimentally and theoretically study self-similarity in boundary-layer flow over a dynamic boundary, wherein the flow and the boundary are dynamically coupled. Our experimental setup is a soap-film channel, which is essentially a soapy waterfall---a planar film of soap-water solution falling under gravity. This setup has long been used to study quasi-two-dimensional flows in a laboratory setting. Unlike previous experiments, however, where the focus is on the flow in the film, we train attention on what surrounds the film: air. The falling film drags the surrounding air, inducing flow in a thin layer of air adjacent to the film. This flowing air, in turn, resists the motion of the falling film; thus, the film-air interface is a dynamic boundary. We measure the velocity profile of the airflow in the boundary-layer of this interface using super-resolution Particle Image Velocimetry. (To our knowledge, these are the first experiments to measure airflow induced by a soap film.) The downstream evolution of the air velocity profile manifests self-similarity, which we analyze using the framework of boundary-layer theory. Surprisingly, we find that the conditions of self-similarity of the airflow also shed light on the downstream evolution of the film. Beyond air-film interaction, our findings may bear on a broader class of flows over dynamic boundaries, e.g. ocean-air interaction.","subitem_description_language":"en","subitem_description_type":"Other"}]},"item_10006_dissertation_number_12":{"attribute_name":"Degree Referral Number","attribute_value_mlt":[{"subitem_dissertationnumber":"甲第119号"}]},"item_10006_identifier_registration":{"attribute_name":"ID登録","attribute_value_mlt":[{"subitem_identifier_reg_text":"10.15102/1394.00002652","subitem_identifier_reg_type":"JaLC"}]},"item_10006_rights_13":{"attribute_name":"Copyright Information","attribute_value_mlt":[{"subitem_rights":"© 2023 The Author."}]},"item_10006_text_24":{"attribute_name":"Exam Date","attribute_value_mlt":[{"subitem_text_value":"2023-02-21"}]},"item_10006_version_type_18":{"attribute_name":"Version Format","attribute_value_mlt":[{"subitem_version_resource":"http://purl.org/coar/version/c_970fb48d4fbd8a85","subitem_version_type":"VoR"}]},"item_access_right":{"attribute_name":"アクセス権","attribute_value_mlt":[{"subitem_access_right":"open access","subitem_access_right_uri":"http://purl.org/coar/access_right/c_abf2"}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2023-05-17"}],"displaytype":"detail","filename":"HattoriYunaExamAbstract.pdf","filesize":[{"value":"49.1 kB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"HattoriYunaExamAbstract","objectType":"abstract","url":"https://oist.repo.nii.ac.jp/record/2931/files/HattoriYunaExamAbstract.pdf"},"version_id":"c58eb930-a7ae-4118-bef8-354f83bfb78a"},{"accessrole":"open_access","date":[{"dateType":"Available","dateValue":"2025-04-03"}],"displaytype":"detail","filename":"HattoriYuna_Abstract_of_Thesis_during_the_embargo_period.pdf","filesize":[{"value":"407.0 kB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"HattoriYuna_Abstract_of_Thesis_during_the_embargo_period","objectType":"summary","url":"https://oist.repo.nii.ac.jp/record/2931/files/HattoriYuna_Abstract_of_Thesis_during_the_embargo_period.pdf"},"version_id":"b0709576-bfb3-49c5-ac2f-6f12d7efb8a9"},{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2025-04-03"}],"filename":"HattoriYunaFullText.pdf","filesize":[{"value":"30.4 MB"}],"format":"application/pdf","mimetype":"application/pdf","url":{"objectType":"fulltext","url":"https://oist.repo.nii.ac.jp/record/2931/files/HattoriYunaFullText.pdf"},"version_id":"8261fe3f-fec8-4dd6-9fc5-1ff3d252163e"}]},"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":"doctoral thesis","resourceuri":"http://purl.org/coar/resource_type/c_db06"}]},"item_title":"力学的境界条件下における境界層での自己相似性：垂直石鹸膜に引き起こされる空気の流れ","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"力学的境界条件下における境界層での自己相似性：垂直石鹸膜に引き起こされる空気の流れ","subitem_title_language":"ja"},{"subitem_title":"Self-similarity in a Boundary-layer Flow over a Dynamic Boundary: Flow of Air Induced by a Falling Soap Film","subitem_title_language":"en"}]},"item_type_id":"10006","owner":"22","path":["241"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2023-05-17"},"publish_date":"2023-05-17","publish_status":"0","recid":"2931","relation_version_is_last":true,"title":["力学的境界条件下における境界層での自己相似性：垂直石鹸膜に引き起こされる空気の流れ"],"weko_creator_id":"22","weko_shared_id":-1},"updated":"2024-04-19T09:07:36.713314+00:00"}