{"created":"2023-06-20T15:03:01.205540+00:00","id":32115,"links":{},"metadata":{"_buckets":{"deposit":"7a5096ef-4294-4984-94f0-04f5685d3ade"},"_deposit":{"created_by":1,"id":"32115","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"32115"},"status":"published"},"_oai":{"id":"oai:jaxa.repo.nii.ac.jp:00032115","sets":["1887:1890","1896:1898:1899:1910"]},"author_link":["407371","407369","407367","407370","407372","407368"],"item_9_alternative_title_2":{"attribute_name":"その他のタイトル（英）","attribute_value_mlt":[{"subitem_alternative_title":"Experimental Study on Supersonic Air Intake Buzz"}]},"item_9_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"1973-06","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"2_C","bibliographicPageEnd":"542","bibliographicPageStart":"499","bibliographicVolumeNumber":"9","bibliographic_titles":[{"bibliographic_title":"東京大学宇宙航空研究所報告"}]}]},"item_9_description_16":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"超音速空気取入口の不安定現象を実験的に解明するため,測定断面200mm×180mm,マッハ数2.0の吹出し式超音速風洞を新しく設計・製作した.この風洞を使用して,円錐状の中心体とカウリングとからなる外部圧縮型超音速空気取入口の模型につきバズの実験を行なった.実験上のパラメータは出口面積を表かす絞り比(T.R.)およびカウリングに対する中心体の相対的位置を示すスペーサの組合せ(No.A～C)の2つであり,さらに迎え角(α)の影響についても調べた.実験の結果,亜臨界領域では非定常現象が発生し,模型に埋込まねたひずみ抵抗式示圧計により測定した変動圧力には,いくつかの特徴的な振動数の存在することが観測された.また絞り比(T.R.)を減少させながら記録した圧力変動から,バズの発生や低周波バズから高周波バズヘの遷移の様子がわかった.さらにこれらの圧力変動は,高速度カメラで撮影したシュリーレン写頁による重直衝撃波の動きと非常によく対応していた.最後に中心体を取除いた模型の実験と比較して,超音波空気取入口におけるバズの特性,とくに高周波バズの発生に関しては中心体の存在が重要な役割を果していることがわかった.","subitem_description_type":"Abstract"}]},"item_9_description_17":{"attribute_name":"抄録（英）","attribute_value_mlt":[{"subitem_description":"For the purpose of examing supersonic intake instability, the authors have designed and constructed a supersonic wind tunnel of the blow down type, in which the test section dimension is 200mm x 180mm and its Mach number capability is 2.0. Using this supersonic wind tunnel, experiments on inlet buzz are made. The air intake model is an all external compression type with a conical center body and an outer cowling. Test parameters used are the exit port area or the throttle ratio (T. R.) and the center body position relative to the cowl lip or spacer combination (No. A～C). The effect of attack angle (α) is also examined. The following results are obtained for experiments. In the subcritical regime unstationary phenomena occur and some characteristic frequencies are observed on the pressure records, which are measured with strain gauge type pressure transducers located at several spots on the center body and the cowling wall. The occurrence of inlet buzz and the transition from lower frequency to higher one are studied by decreasing T. R. and continuously recording the pressure fluctuations. In addition, these pressure records coincide fairly well with the motions of the bow shock wave, which are photographed with a Schlieren high speed camera. Based on the experimental results from the model with and without the center body, it can be stated that the center body has a significant effect on the buzz characteristics of supersonic air intake, especially when buzz occurs at a high frequency.","subitem_description_type":"Other"}]},"item_9_description_32":{"attribute_name":"資料番号","attribute_value_mlt":[{"subitem_description":"資料番号: SA0125232000","subitem_description_type":"Other"}]},"item_9_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"東京大学宇宙航空研究所"}]},"item_9_source_id_21":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"0563-8100","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":"AN00161914","subitem_source_identifier_type":"NCID"}]},"item_9_text_6":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"東京大学宇宙航空研究所"},{"subitem_text_value":"東京大学宇宙航空研究所"},{"subitem_text_value":"東京大学宇宙航空研究所"}]},"item_9_text_7":{"attribute_name":"著者所属（英）","attribute_value_mlt":[{"subitem_text_language":"en","subitem_text_value":"Institute of Space and Aeronautical Science"},{"subitem_text_language":"en","subitem_text_value":"Institute of Space and Aeronautical Science"},{"subitem_text_language":"en","subitem_text_value":"Institute of Space and Aeronautical Science"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"浅沼, 強"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"小保方, 富夫"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"長島, 利夫"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"ASANUMA, Tsuyoshi","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"OBOKATA, Tomio","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"NAGASHIMA, Toshio","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":"SA0125232.pdf","filesize":[{"value":"4.7 MB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"SA0125232.pdf","url":"https://jaxa.repo.nii.ac.jp/record/32115/files/SA0125232.pdf"},"version_id":"ae1b716a-3772-443f-8616-b516c6420d51"}]},"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":"超音速空気取入口のバズに関する実験的研究","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"超音速空気取入口のバズに関する実験的研究"}]},"item_type_id":"9","owner":"1","path":["1890","1910"],"pubdate":{"attribute_name":"公開日","attribute_value":"2015-03-26"},"publish_date":"2015-03-26","publish_status":"0","recid":"32115","relation_version_is_last":true,"title":["超音速空気取入口のバズに関する実験的研究"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-06-21T00:40:36.391792+00:00"}