著者
Akira IWAKAWA Tatsuro SHODA Ryosuke MAJIMA Son Hoang PHAM Akihiro SASOH
出版者
THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES
雑誌
TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES (ISSN:05493811)
巻号頁・発行日
vol.60, no.5, pp.303-311, 2017 (Released:2017-09-04)
参考文献数
32

Supersonic drag reduction performance using repetitive pulse energy depositions over blunt bodies was experimentally studied under two Mach numbers. The normalized drag reduction and energy deposition efficiency of Mach-1.92 over a 10-mm-dia. blunt-cylinder model were 8% and 1.2 at most, respectively. On the other hand, these values at Mach-3.20 over the same model were 22% and 6.2, respectively. The shock-wave deformation period using single-pulse energy deposition at Mach-3.20 was 64 μs. This duration was shorter than that of 80 μs at Mach-1.92, but the deformation magnitude on the model center axis of 40% at Mach-3.20 was larger than that of 15% at Mach-1.92. These experimental characteristics were consistent as solutions of the Riemann problem. Moreover, a drag reduction performance was much improved with a larger model diameter of 20 mm. Therefore, it has been experimentally demonstrated that the drag reduction performance due to energy deposition improves much at a high Mach number and with large model dimensions.

言及状況

外部データベース (DOI)

Twitter (2 users, 2 posts, 0 favorites)

#CAVILUX #laserillumination @NagoyaUniv to study supersonc drag reduction using laser energy deposition. Article… https://t.co/jhjWA2V4uA

収集済み URL リスト