Supersonic Transport Team, Aviation Program Group, Japan Aerospace Exploration Agency (APG)(JAXA)
Supersonic Transport Team, Aviation Program Group, Japan Aerospace Exploration Agency (APG)(JAXA)
Supersonic Transport Team, Aviation Program Group, Japan Aerospace Exploration Agency (APG)(JAXA)
The air-intake of 3.5th configuration for the silent supersonic technology demonstrator, S3TD, having fixed geometry under a basic design policy, has been designed in Japan Aerospace Exploration Agency. This implies that compromising between improving the flow characteristics at low speed region and reduction of the external drag at high speed region is more difficult than that in designing an air-intake with variable geometry. Indeed, the 3.5th configuration air-intake was designed admitting the aerodynamic performance to be impaired at low speed region to reduce the external drag. Thus, the operation of the engine is strongly limited to a certain range. The low speed wind tunnel tests were performed having four objectives. They are making aerodynamic database, verifying the limitation of the engine operation, verifying the height of the diverter and examining the alternative doors. The limitation of the engine operation was verified to be appropriate as the result of making aerodynamic database. The height of the diverter is enough to remove the effect of the boundary layer developing on the fuselage. It was found that applying alternative doors was effective to improve the flow characteristics.
内容記述
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内容記述（英）
Physical characteristics: Original contains color illustrations
静粛超音速研究機（S3TD）第3.5 次形状インテークの空力性能取得低速風洞試験
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