Robust design and analysis of a conformal expansion nozzle with inverse-design idea

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Abstract

This paper examines robust optimization design and analysis of a conformal expansion nozzle of flying wing Unmanned Aerial Vehicle (UAV) with the inverse-design idea. In view of flow features and stealth constraints, the inverse-design idea is described and the uncertainty-based robust design model is presented. A robust design system employs this model to combine deterministic optimization and robust optimization and is applied into design of a conformal expansion nozzle. The results indicate that design optimization can conform to the anticipation of the inverse-design idea and significantly improve the aerodynamic performance that meet the requirement of 6σ. The present method is a feasible nozzle design strategy that integrates robust optimization and inverse-design.

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GAN, W., ZHANG, X., MA, T., ZHANG, Q., & YUAN, W. (2018). Robust design and analysis of a conformal expansion nozzle with inverse-design idea. Chinese Journal of Aeronautics, 31(1), 79–88. https://doi.org/10.1016/j.cja.2017.11.009

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