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- W2955661607 abstract "In this paper, a parametric design method of point-line-arc was introduced firstly, which could analyze the influence of design parameters on the aerodynamic performance of high bypass ratio separate exhaust system. And the sensitivity analysis is carried out by perturbing different parameters, such as the angle of the cowling, the length of the cowling, the outlet position of the external bypass, the turning position of the external bypass and the length of the tail cone. The numerical simulation method was used to compare the influence of the five parameters on aerodynamic performance. Then, a rapid calculation method was developed for obtain the engine performance parameters in a very short time. Those five parameters and the corresponding large number of aerodynamic performance results were taken as input data, and those data were trained by artificial neural network. After that, a new combination of geometric parameters could be input and the corresponding aerodynamic parameters could be output through the artificial neural network in a few seconds and a good fitting result is obtained. Finally, a set of original geometric parameters were input to calculate the fitting data, the result shows that the largest fitting error is only 0.51%, which indicates that the error of fitting method is very small." @default.
- W2955661607 created "2019-07-12" @default.
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- W2955661607 date "2019-01-01" @default.
- W2955661607 modified "2023-09-25" @default.
- W2955661607 title "Parameter Sensitivity Analysis and Rapid Performance Calculation for High Bypass Ratio Separate Flow Exhaust System" @default.
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- W2955661607 doi "https://doi.org/10.1007/978-981-13-3305-7_39" @default.
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