Research on Intake Heating Test Technology of Aeroengine Ground Table
In order to simulatethe higher engine intake air temperature when the small bypass is higher than the mach number of the aero-engine,the engineintake air heating test under ground bench conditions was carried out.Aiming at the research on the heating test of aero-engine with air intake conditions on the ground bench,a method of recording the inlet temperature sensor to characterize the intake temperature is proposed to realize the monitoring of the intake temperature and the safety of the surge heating test.Then,3 typical working points in the flight envelope are selected to carry out the simulation test of the ground table intake air heating.The experimental study found that the maximum inhomogeneity of the total inlet temperature of the engine during the intake air heating test is 2.6%,the exhaust temperature field is con-sistent with the normal temperature test run,the intake and exhaust temperature field is evenly distributed,and the control accuracy is high.The air heating test provides a high-quality intake flow field.The test shows that the intake heating test carried out on the ground bench conditions can better simulate under the high-altitude Mach number and high-temperature intake conditions of the engine.
AeroengineHigh altitude mach numberGround benchIntake heatingIntake flow fieldTo-tal temperature non-uniformity
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