Simulation test method for high-temperature airflow suction in engine air inlet channel
A high-temperature air flow and simulation test technology, which is applied to the combustion of the air inlet of the power plant and the testing of aircraft components, can solve problems such as large safety risks, affecting the accuracy of the test, and the difficulty of effectively controlling the fuel combustion state.
Active Publication Date: 2022-05-06
AECC SHENYANG ENGINE RES INST
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Problems solved by technology
[0004] 1) It is difficult to effectively control the combustion state of the fuel in the micro-combustion chamber, and it is impossible to effectively adjust the temperature distortion intensity, temperature rise rate, high-temperature zone range, high-temperature zone phase angle, and high-temperature persistence of the high-temperature airflow sucked into the engine intake port. Accurate simulation of time;
[0005] 2) The fuel in the micro-combustion chamber mostly uses hydrogen, and there is a large difference between the composition produced by combustion and the high-temperature airflow inhaled by the engine intake, which affects the accuracy of the test and has a large safety risk;
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[0036] In order to make the technical solution of the present application and its advantages clearer, the technical solution of the present application will be further clearly and completely described in detail below in conjunction with the accompanying drawings. It can be understood that the specific embodiments described here are only part of the application Examples are only used to explain the present application, not to limit the present application. It should be noted that, for the convenience of description, only the parts related to the present application are shown in the drawings, and other relevant parts can refer to the general design. In the case of no conflict, the embodiments in the application and the technologies in the embodiments Features can be combined with each other to obtain new embodiments.
[0037] In addition, unless otherwise defined, the technical terms or scientific terms used in the description of the application shall have the usual meanings und...
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The invention belongs to the technical field of simulation tests for high-temperature air flow sucked by an aircraft engine air inlet channel, and particularly relates to a simulation test method for high-temperature air flow sucked by an engine air inlet channel, and the method comprises the steps: adjusting the air flow and temperature of high-temperature compressed air injected into an engine main air inlet channel and an auxiliary air inlet channel through a main nozzle and an auxiliary nozzle; the intensity of temperature and pressure distortion in the engine flow channel is controlled, the high-temperature area range and the high-temperature area phase angle in the engine flow channel are controlled by adjusting the injection direction of high-temperature compressed air, the injection rate of the high-temperature compressed air is adjusted, and the temperature rise rate in the engine flow channel is controlled. And further, corresponding temperature and pressure distortion occurs in the air inlet of the engine.
Description
technical field [0001] The application belongs to the technical field of simulation test of high-temperature airflow inhaled by an air intake of an aircraft engine, and in particular relates to a simulation test method of high-temperature airflow inhaled by an engine inlet. Background technique [0002] When the aircraft takes off, there is a situation where the engine intake intakes inhale high-temperature airflow, and the engine intake inhales high-temperature emission airflow, which will cause temperature and pressure distortion, resulting in a decrease in the engine stability margin and the anti-interference ability of the engine. [0003] At present, in order to study the influence of high-temperature airflow in the intake port on engine performance, a micro combustion chamber is arranged in the engine intake port, fuel is introduced into the micro combustion chamber, and the combustion state of the fuel in the micro combustion chamber is controlled to control the intake...
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IPC IPC(8): B64F5/60B64D33/02
CPCB64F5/60B64D33/02Y02T10/12
Inventor 刘旭峰佟尧高杨武俊虎乔木薛洪科耿金嵩王铁军王则周易
Owner AECC SHENYANG ENGINE RES INST