A ventral diverterless high offset S-shaped inlet at transonic speeds

作者：Xie Wenzhong^*; Guo Rongwei

来源：Chinese Journal of Aeronautics, 2008, 21(3): 207-214.

• aerospace propulsion system
• diverterless inlet
• high offset
• transonic inlet
• S-shaped inlet
• experimental investigation

An investigation on the ventral diverterless high offset S-shaped inlet is carried out at Mach numbers from 0.600 to 1.534, angles of attack from -4 degrees to 9.4 degrees, and yaw angles from 0 degrees to 8 degrees. Results indicate: (1) a large region of low total pressure exists at the lower part of the inlet exit caused by the counter-rotating vortices in the S-shaped duct; (2) the performances of the inlet at Mach number 1.000 reach almost the highest, so the propulsion system could work efficiently in terms of aerodynamics; (3) the total pressure recovery increases slowly at first and then remains unvaried as the Mach number rises from 0.6 to 1.0, however, it does in an opposite manner in the conventional diverter-equipped S-shaped inlet; (4) the performances of the inlet are generally insensitive to angles of attack from -4 degrees to 9.4 degrees and yaw angles from 0 degrees to 8 degrees at Mach number 0.850, and angles of attack from -2 degrees to 6 degrees and yaw angles from 0 degrees to 5 degrees at Mach number 1.534.

• 出版日期2008-6
• 单位南京航空航天大学