Design method of binary adjustable air inlet channel

• Main Authors: HUANG HEXIA, LI ZIJIE, LIN ZHENGKANG, TAN HUIJUN, WANG KUN, ZHENG GAOJIE, LIU YU, CHEN CHENG
• Format: Patent
• Language: Chinese; English
• Published: 06.07.2021
• Subjects: AIR INTAKES FOR JET-PROPULSION PLANTS; BLASTING; CALCULATING; COMBUSTION ENGINES; COMPUTING; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; GAS-TURBINE PLANTS; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; LIGHTING; MECHANICAL ENGINEERING; PHYSICS; WEAPONS

The invention discloses a design method of a binary adjustable air inlet channel. For the design of the variable geometry air inlet channel, a design criterion of the variable geometry air inlet channel with the throat Mach number as a control variable is provided on the basis of the design of a traditional binary supersonic air inlet channel, and the criterion is beneficial for controlling the performance and starting of the air inlet channel at a non-design point; a basic profile under multiple working conditions is provided for the early-stage design of the binary adjustable air inlet passage; for the integrated design of the air inlet channel and the aircraft forebody, a method for deflecting the air inlet channel is provided, and the windward area of the aircraft is reduced on the basis that the performance of the air inlet channel is not reduced; and the used 0-dimensional performance analysis model can accurately estimate the performance of the variable geometry air inlet channel under different workin