Gas-Dynamic Designing of the Exhaust System for the Air Brake

2017 International Conference on Aerospace Technology, Communications and Energy Systems

航空航天工程;无线电电子学;能源学

Novikova, Yu^1 ; Goriachkin, E.^1 ; Volkov, A.^1

Samara National Research University, Samara, Russia^1

关键词: Actual conditions;    Back pressures;    Operating points;    Outlet guide vanes;    Outlet pressures;    Performance curve;    Test equipments;    Time cost;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/302/1/012029/pdf
DOI  :  10.1088/1757-899X/302/1/012029

学科分类：航空航天科学

来源: IOP

【 摘 要 】

Each gas turbine engine is tested some times during the life-cycle. The test equipment includes the air brake that utilizes the power produced by the gas turbine engine. In actual conditions, the outlet pressure of the air brake does not change and is equal to atmospheric pressure. For this reason, for the air brake work it is necessary to design the special exhaust system. Mission of the exhaust system is to provide the required level of backpressure at the outlet of the air brake. The backpressure is required for the required power utilization by the air brake (the air brake operation in the required points on the performance curves). The paper is described the development of the gas dynamic canal, designing outlet guide vane and the creation of a unified exhaust system for the air brake. Using a unified exhaust system involves moving the operating point to the performance curve further away from the calculated point. However, the applying of one exhaust system instead of two will significantly reduce the cash and time costs.