著者

藤枝 郭俊 高橋 〓 藤田 敏美 岩崎 昭人 奥山 政広

出版者

The Visualization Society of Japan

雑誌

可視化情報学会誌 (ISSN:09164731)

巻号頁・発行日

vol.10, no.2, pp.197-200, 1990

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Aircraft adopting USB(Upper Surface Blowing) concept as a powered lift system achieves powered lift augumentation by deflecting the engine exhaust flow over the wing and the extended USB flap by Coanda principles. To obtain higher powered lift, optimal engine exhaust nozzles design and engine allocation which enhance effectively exhaust flow turning performance are important factors.<BR>This report describes the exhaust flow characteristicsin the case of varying space between two engines installated on the semi-span USB powered lift model. Measurements of Exhaust flows behind two engines were made by a traversing wake rake with 5-holes pitot tube in NAL 2m×2m Gust Wind Tunnel.

著者

藤枝 郭俊 藤田 敏美 岩崎 昭人 高橋 〓 奥山 政広

出版者

The Visualization Society of Japan

雑誌

可視化情報学会誌 (ISSN:09164731)

巻号頁・発行日

vol.13, no.2, pp.35-38, 1993

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The aircraft employing the Upper Surface Blowing(USB) system as a poweredlift technology makes use of the energy of the engine exhoust to augument wing lift. The aircraft with the USB system achieves higher powered-lift by turning full downward the engine exhaust flow. To studying powered-lift characteristics, the wakes of the semi-span aircraft model with USB Powered high lift system were measured by a taversing wake rake with 5-pitot tube in NAL 2×2m Gust Wind Tunnel.<BR>In this report, the characteristics for the wake having different turning angle of exhaust flow are described.