The process of gas-dynamic design of pneumatic braking system using the baseline compressor

10th International Conference on Compressors and their Systems

Novikova, Y.^1 ; Popov, G.^1 ; Goriachkin, E.^1 ; Baturin, O.^1 ; Zubanov, V.^1

Samara National Research University, Samara, Russia^1

关键词: CFD simulations;    Dynamic design;    Industrial gas turbines;    Meridional flows;    Outlet guide vanes;    Pneumatic braking;    Stall margin;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/232/1/012068/pdf
DOI  :  10.1088/1757-899X/232/1/012068

来源: IOP

【 摘 要 】

The article presents the results of work on the design of the air brake for testing of industrial gas turbine engines with free turbine. Designing of the air brake was performed on the basis of existing units using the program CFD - simulation Numeca FineTurbo. During the design the air brake arrangement was determined, which allows to utilize the required power to the shaft of the free turbine, increases stall margin of the air brake by waisting of the meridional flow channel. It was also made designing of the outlet guide vane to remove the residual twist. Unified nozzle also was designed to provide the air brake work at necessary points on the characteristic.