ZHONG Yi-cheng, YU Shao-zhi, CHEN Xiao. Experimental Investigation on Gas-Dynamic Performance of Caret Inlet under Condition of Large Attack Angles and Yaw Angles[J]. 2001, 16(1).
ZHONG Yi-cheng, YU Shao-zhi, CHEN Xiao. Experimental Investigation on Gas-Dynamic Performance of Caret Inlet under Condition of Large Attack Angles and Yaw Angles[J]. 2001, 16(1).DOI:
An experimental investigation has been carried out.The influences of attack angle (α=0°~45°) and yaw angle (β=-15°~+15°) on caret inlet gas-dynamic performance were investigated experimentally.The variation of the inlet performance parameters with the attack angles
as well as total pressure contour plots of inlet/exit at typical states
have been presented
and the relationship between flow characteristics of the inlet and its exit total pressure contour plots has also been analyzed.It is shown that
in the condition of low speed incoming flow (Ma≈0 1)
the inlet total pressure recovery coefficient decreases slowly with the increase of attack angle (α=0°~45°)
and the total pressure distortion is nearly unchanging.As a result
caret inlet is favorable to maneuver flight at large attack angle.With zero attack angle and at same exit Mach number
the yaw angle has a great influence on position of inlet/exit higher and lower total pressure domains
i.e.the whole exit flow field rotates clock-wise as the yaw angle increases (β=-15°~+15°).However
the influence of the yaw angle becomes weaker with the increase of attack angle.