{"created":"2023-04-27T04:14:13.703933+00:00","id":6102,"links":{},"metadata":{"_buckets":{"deposit":"d6ac9da3-ef9a-4f35-80a4-16e78b38e1b8"},"_deposit":{"id":"6102","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"6102"},"status":"published"},"_oai":{"id":"oai:nied-repo.bosai.go.jp:00006102","sets":[]},"author_link":[],"item_10001_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2022-03","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"2","bibliographicPageEnd":"186","bibliographicPageStart":"175","bibliographicVolumeNumber":"84","bibliographic_titles":[{"bibliographic_title":"雪氷","bibliographic_titleLang":"ja"},{"bibliographic_title":"Journal of the Japanese Society of Snow and Ice","bibliographic_titleLang":"en"}]}]},"item_10001_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"湿型着雪の発生において，降雪の含水状態は重要であり，気温とともに相対湿度が着雪性状に大きな影響を与える．特に自然界で同気温におけるみぞれや湿雪と乾雪の境界条件前後の相対湿度の影響は大きい．本研究では，アルミ平板を風洞中央に設置し，同じ粒子形状の湿雪，気温1 °Cの一定条件下で，風速7.5 m s<sup>－1</sup>～15 m s<sup>－1</sup> で着雪試験を実施した．気温1 °Cにおけるみぞれと雪の相対湿度の境界条件より，高湿度の場合と低湿度の場合に大別し制御することにより，風洞試験において相対湿度が着雪性状に与える影響について検討した．着雪密度は7.5 m s<sup>－1</sup> と10 m s<sup>－1</sup> では相対湿度の影響が見られないが12.5 m s<sup>－1</sup> と15 m s<sup>－1</sup> では低湿度条件のほうが高密度になる結果となった．一方，着雪角度，表面硬度および含水率は顕著な違いが見られた．着雪角度は高湿度条件の場合は大きく，強風ほど小さくなる結果となった．表面硬度は低湿度条件の場合のほうが高硬度となり，その影響は風速が高いほど顕著となった．","subitem_description_language":"ja","subitem_description_type":"Other"},{"subitem_description":"The liquid water content of the snow is essential in wet snow accretion, and temperature and relative humidity significantly influence its properties. In particular, relative humidity is significant at the boundary condition between wet snow and dry snow in nature. In this study, the effect of the relative humidity on the properties of the snow accretion was investigated under the same snow quality and temperature conditions and at higher and lower humidity levels than the boundary value of relative humidity.\n\nResults showed that the density of snow accretion was denser in the low humidity condition under strong wind. The snow accretion angle was larger in high humidity conditions, and the effect of relative humidity was smaller in high wind speeds. Surface hardness was higher in the low humidity condition, and the effect was more pronounced in the high wind speed condition. The impact load was calculated using the surface hardness, and the effect of relative humidity on the snow setting process was clarified. This study demonstrated the effects of relative humidity on snow accretion properties.","subitem_description_language":"en","subitem_description_type":"Other"}]},"item_10001_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"公益社団法人 日本雪氷学会","subitem_publisher_language":"ja"},{"subitem_publisher":"The Japanese Society of Snow and Ice","subitem_publisher_language":"en"}]},"item_10001_relation_14":{"attribute_name":"DOI","attribute_value_mlt":[{"subitem_relation_type_id":{"subitem_relation_type_id_text":"10.5331/seppyo.84.2_175"}}]},"item_10001_source_id_9":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"1883-6267","subitem_source_identifier_type":"EISSN"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"佐藤研吾","creatorNameLang":"ja"},{"creatorName":"SATO Kengo","creatorNameLang":"en"}]},{"creatorNames":[{"creatorName":"冨樫数馬","creatorNameLang":"ja"},{"creatorName":"TOGASHI Kazuma","creatorNameLang":"en"}]}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"item_title":"着雪現象の相対湿度依存性に関する風洞試験","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"着雪現象の相対湿度依存性に関する風洞試験","subitem_title_language":"ja"},{"subitem_title":"Wind tunnel tests on effect of relative humidity on the phenomenon of snow accretion","subitem_title_language":"en"}]},"item_type_id":"40001","owner":"1","path":["1670839190650"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2023-05-08"},"publish_date":"2023-05-08","publish_status":"0","recid":"6102","relation_version_is_last":true,"title":["着雪現象の相対湿度依存性に関する風洞試験"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-05-08T02:03:27.023672+00:00"}