A numerical simulation study on the inlet distortion of aeroengine test rig
In order to realize the simulation of high-temperature gas intake from the external field of an engine,this paper introduces the aero-engine intake temperature distortion simulation device,mainly from the equipment principle,equipment composition,equipment simulation and verification and other aspects,verifying the simulation device indicators by means of numerical simulation,including the main and auxiliary nozzles under different flow and temperature,temperature distribution of aerodynamic interface plane(AIP)section,temperature distortion intensity and other indicators.The temperature distortion intensity of the main nozzle is up to 24.29%at the injection heat flow of 550 K,20 kg/s.The temperature distortion intensity of the auxiliary nozzle is up to 18.06%at the auxiliary nozzle under the condition of 20 kg/s,450 K,which verifies the temperature distribution in the high temperature region of the AIP section under different nozzle locations.The temperature rise rate of AIP cross section can be changed by changing the pipe injection flow rate.It is proved that the temperature distortion simulator has certain ability to realize the temperature distortion index with adjustability,which can reproduce the external field phenomenon.
numerical simulationaero engineadjustable test benchinlet distortiontemperature distortion intensitytemperature rise ratefinite element analysisstress calculation