@inproceedings{oai:jaxa.repo.nii.ac.jp:00005532,
 author = {近藤, 暁 and 坂上, 昇史 and 新井, 隆景 and Kondo, Akira and Sakaue, Shoji and Arai, Takakage},
 book = {宇宙航空研究開発機構特別資料: 境界層遷移の解明と制御研究会講演論文集　第40回, JAXA Special Publication: Proceedings of the 40th JAXA Workshop on Investigation and Control of Boundary-Layer Transition},
 month = {Feb},
 note = {In the present study we made efforts to realize a measurement method of mass flux and concentration in supersonic air/helium flow in order to clarify the mixing process. The measuring equipment, which was used for measuring the fluctuations of mass flux and concentration, is consisted of a double-hot-wire probe and CVA (Constant Voltage Anemometer) circuit with 500 kHz bandwidth. The distance between two wires of double-hot-wire probe was 0.16 mm. By using the same material as the hot wire, the correlation coefficient between each hot wire output in Mach 2.4 supersonic flow with the pair of streamwise vortices was about 0.9. Therefore, we confirmed that the flows captured by two wires were almost the same and our device can capture the coherent structure up to 1 mm in Mach 2.4 supersonic flow. When we use the two kinds of wires with the different responses to the variations of mass flux and helium concentration, we can find the air/helium mixing flow field using the calibration maps of each wires. In the present study, we used the two tungsten wires with 5 micrometer and 3.1 micrometer in diameter as the double-hot-wire probe and measure the mean mass flux and helium concentration in supersonic air/helium mixing layer in order to improve our measuring method., 資料番号: AA0063908011, レポート番号: JAXA-SP-07-026E},
 pages = {35--38},
 publisher = {宇宙航空研究開発機構, Japan Aerospace Exploration Agency (JAXA)},
 title = {Measurements of mass flux and concentration in supersonic air/helium mixing by hot-wire anemometry},
 volume = {JAXA-SP-07-026E},
 year = {2008}
}