{"created":"2023-06-20T15:05:50.977961+00:00","id":35199,"links":{},"metadata":{"_buckets":{"deposit":"e29153e3-3e61-46ab-aa2e-f71b95ebbffb"},"_deposit":{"created_by":1,"id":"35199","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"35199"},"status":"published"},"_oai":{"id":"oai:jaxa.repo.nii.ac.jp:00035199","sets":["1887:1890","1896:1898:1899:1909"]},"author_link":["421269","421265","421267","421268","421266","421270"],"item_9_alternative_title_2":{"attribute_name":"その他のタイトル（英）","attribute_value_mlt":[{"subitem_alternative_title":"Study of Row of Circular Cylinders in Supersonic and Hypersonic Flow : 3. Drag of Row of Parallel Circular Cylinders in Supersonic Flow"}]},"item_9_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"1963-12","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"8","bibliographicPageEnd":"745","bibliographicPageStart":"707","bibliographicVolumeNumber":"3","bibliographic_titles":[{"bibliographic_title":"東京大学航空研究所集報"}]}]},"item_9_description_16":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"Mach数2の超音速の流れの中におかれた平行円柱列の抵抗についての風洞による研究が述べられている.一つの列の中の円柱の数は,それぞれ2,3,および5本である.各々の円柱の長さ,および直径は,それぞれ110mm,および12mmである.そして直径に関するReynolds数は3×10^5である.各々の円柱の抵抗は,線ひずみ計を用いて個々に測定れている.その結果によると,平均抵抗係数は,円柱間の距離が等しい場合には,円柱の数が増すと共に,大きくなることが示されている.弧状衝撃波の三次元的形状は,鉛直および水平に置いて撮影したSchlieren写真を組合せることによつて,適切に決定される.そのことから弧状衝撃波による造波抵抗が計算されうる.2本の円柱列の場合には,円柱間の距離が零から30mmに変るとき,造波抵抗係数は0.72から0.75へと,ゆるやかに増加する.円柱間に一次元のnozzleの流れを仮定し,Schlieren写真からえられたよどみ点の位置を考慮に入れると,nozzleの流れにもとづく,円柱に対する圧力抵抗を計算することができる.弧状衝撃波,およびnozzleの流れにもとづく抵抗を加え,更にわずかな摩擦抵抗をつけ加えると,測定された全抵抗ときわめてよく一致する値がえられる.","subitem_description_type":"Abstract"}]},"item_9_description_17":{"attribute_name":"抄録（英）","attribute_value_mlt":[{"subitem_description":"Wind tunnel investigation on drag of row of parallel cylinders placed in a supersonic flow of Mach number 2 is presented. The number of cylinders tested in one row is two, three and five, respectively. The length and diameter of each cylinder are 110mm. and 12mm., respectively, and Reynolds number referred to the diameter is 3×10^5. Drag of each cylinder is measured separately by use of strain wire gauge. Results show that the mean drag coefficient of the rows with the same distance between cylinders increases as the number of cylinder increases. Three-dimensional shape of bow shock wave is fairly well determined by combining Schlieren photographs taken vertically and horizontally, from which it is possible to evaluate shock drag due to bow shock. In case of two cylinder row, the bow shock drag coefficient increases slowly from 0.72 to 0.75 as the distance between cylinders varies from zero to 30mm. Assumption of one-dimensional nozzle flow between the cylinders together with the position of stagnation point obtained in Schlieren photographs makes it possible to calculate pressure drag on the cylinder due to the nozzle flow. It is found that, in case of two cylinder row, the sum of those estimated drags due to bow shock, nozzle flow and small friction drag agrees well With the measured total drag.","subitem_description_type":"Other"}]},"item_9_description_32":{"attribute_name":"資料番号","attribute_value_mlt":[{"subitem_description":"資料番号: SA4135082000","subitem_description_type":"Other"}]},"item_9_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"東京大学航空研究所"}]},"item_9_source_id_21":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"0563-8097","subitem_source_identifier_type":"ISSN"}]},"item_9_source_id_24":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AN00162214","subitem_source_identifier_type":"NCID"}]},"item_9_text_6":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"北海道学芸大学"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"河村, 龍馬"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"沢田, 孝士"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"関, 和市"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"KAWAMURA, Ryuma","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"SAWADA, Takashi","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"SEKI, Kazuichi","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":"2020-01-24"}],"displaytype":"detail","filename":"SA4135082.pdf","filesize":[{"value":"3.0 MB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"SA4135082.pdf","url":"https://jaxa.repo.nii.ac.jp/record/35199/files/SA4135082.pdf"},"version_id":"41a83d3e-4631-41e4-b9fb-53f0a3242569"}]},"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":"departmental bulletin paper","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"超音速および極超音速における円柱列の研究 : 第3報 超音速における平行円柱列の抵抗","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"超音速および極超音速における円柱列の研究 : 第3報 超音速における平行円柱列の抵抗"}]},"item_type_id":"9","owner":"1","path":["1890","1909"],"pubdate":{"attribute_name":"公開日","attribute_value":"2015-03-26"},"publish_date":"2015-03-26","publish_status":"0","recid":"35199","relation_version_is_last":true,"title":["超音速および極超音速における円柱列の研究 : 第3報 超音速における平行円柱列の抵抗"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-06-20T23:24:27.955429+00:00"}