@techreport{oai:jaxa.repo.nii.ac.jp:00045094,
 author = {榊原, 盛三 and 三輪, 等 and 小国, 保男 and 佐藤, 衛 and 神田, 宏 and SAKAKIBARA, Seizo and MIWA, Hitoshi and OGUNI, Yasuo and SATO, Mamoru and KANDA, Hiroshi},
 month = {Sep},
 note = {To obtain a better understanding of the characteristic of the facility disturbances and identification of their sources, detailed pressure fluctuation measurements were made in the settling chamber, the test section and the second throat of the NAL two-dimensional transonic wind tunnel. In order to identify the test section wall slot effects, the following measurements were made ; keeping the side wall slot (for wake survey probe trav..) open measurements were mede with the transonic slots (top and bottom walls) both open and closed ; then, conversely, keeping the transonic slots open measurements were made with the side wall slot open and closed. The pressure fluctuations of the flow at these locations in the wind tunnel were measured by means of wall or sting-mounted ultra miniature pressure sensors. The data, which represented a frequency range from about 15 Hz to 25 kHz, have been analyzed in the form of broadband sound pressure levels, root-mean-square fluctuations of pressure coefficient and spectra of pressure fluctuations. There is a brief discussion of each item. R.m.s.and spectra of pressure fluctuations at the test section, which were compared with other wind tunnels, have been considered moderate in the transonic regime (0.7 < M < 0.9)., 資料番号: NALTR0836000, レポート番号: NAL TR-836},
 title = {航技研二次元風胴の気流特性について(Ⅱ)-風胴各部の変動圧力(騒音)の分析と音源の検討-},
 year = {1984}
}