Aero-engine air system air entraining pipeline and flow resistance characteristic design method thereof

• Main Authors: CHAI JUNSHENG, ZHAO JIAJUN, SHEN YI, YANG SHOUHUI, CHENG RONGHUI, ZHAO YUNMO, LI HE
• Format: Patent
• Language: Chinese; English
• Published: 14.03.2023
• 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 provides an aero-engine air system air entraining pipeline flow resistance characteristic design method which comprises the steps that 1, flow resistance characteristic design input of an air system air entraining pipeline is determined, and the flow resistance characteristic design input comprises flow resistance characteristic requirements, structure limitation requirements, flow path interface boundary conditions and similar air entraining pipeline design information; 2, initial flow resistance parameters of the air entraining pipeline of the air system are determined, wherein the initial flow resistance parameters of the air entraining pipeline comprise the number of parallel conduits contained in the air entraining pipeline, the circulation area of a single conduit, the bending angle, radius and number of the conduits and the unfolding length of the conduits; 3, a conduit flow margin coefficient is determined, air system air entraining pipeline model calculation under the initial flow resis