关键词: 发动机进气道;喷气发动机;计算方法

Abstract: Some modifications are conducted in engineering calculations for inlet designsuch as two-dimensional oblique shock angle,total pressure recovery coefficient atrounded lip,subsonic critical flow coefficient and minimum throat area,to be available to computerization.It is shown that, the calculation with modified method is procise enough to satisfy the needs of selecting and analysing parameters in inlet design, compared with experimental data. The modified method presented in this paper could be used in CAD of inlet.

Key words: Engine inlet;Jet engine;Calculation method