Volume 36, Number 4, August 2018
|Page(s)||785 - 791|
|Published online||24 October 2018|
Supersonic Nozzle Optimization Design with Spline Curves Fitting the Nozzle Profiles
Facility Design and Instrumentation Institute, China Aerodynamics Research and Development Center, Mianyang 621000, China
Supersonic nozzle contour optimization design was applied to 0.6m×0.6m continuous transonic wind tunnel to improve flow quality in the test section. The Mach number root mean square deviation with the design value was chosen as optimization target. And the CFD results were verified with experimental results. Cubic spline curves with the optimal interpolating point distribution scheme were used to fit the nozzle contour. Efficient global optimization based on the Gaussian process surrogate model was used to reduce the times of evaluation. Results indicate that, the optimization framework can generate a supersonic nozzle contour with better flow quality and more accurate Mach number and that the optimal Mach number root mean square deviation is 0.001.
Key words: supersonic nozzle / optimization design / spline curves / Gaussian process model / computational fluid dynamics
关键字 : 超声速喷管 / 优化设计 / 样条曲线 / 高斯过程模型 / CFD
© 2018 Journal of Northwestern Polytechnical University. All rights reserved.
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