並列タイトル等Flow Quality of NAL Two-Dimensional Transonic Wind Tunnel Part III Flow Turbulence Level and Measuring Method
タイトル(掲載誌)航空宇宙技術研究所報告 = Technical Report of National Aerospace Laboratory TR-842
一般注記The flow turbulence level of the NAL two-dimensional transonic wind tunnel was measured with a constant temperature hot-wire anemometer using a hot film probe. The fluctuation of the mass flow is within a range of 0.3%-0.45% with Mach numbers of 0.2 to 0.8 and unit Reynolds numbers of 1.8×10(exp 5) to 5.5×10(exp 5) (1/cm). The fluctuation of the total temperature was one-seventh to one-tenth of the mass flow fluctuation. A plain sound wave was assumed, and the noise data was measured simultaneously with the turbulence and compared with this turbulence. An attempt was made to separate the velocity fluctuation and the density fluctuation in the mass flow. The future development of this complex method is discussed in this paper.
資料番号: NALTR0842000
レポート番号: NAL TR-842
一次資料へのリンクURLhttps://jaxa.repo.nii.ac.jp/?action=repository_action_common_download&item_id=45100&item_no=1&attribute_id=31&file_no=1
連携機関・データベース国立情報学研究所 : 学術機関リポジトリデータベース(IRDB)(機関リポジトリ)
提供元機関・データベース宇宙航空研究開発機構 : 宇宙航空研究開発機構リポジトリ