@inproceedings{ac3151c13766409293ce67c8de4b44ad,
title = "Aerodynamic optimization for hypersonic airfoil design based on local piston theory",
abstract = "Aerodynamic optimization by numerical methods has always been of engineering interest with the great advancement of computers. This paper presents a highly efficient aerodynamic optimization method for hypersonic airfoil based on local piston theory. In the optimization procedure, local piston theory has been employed for unsteady pressure perturbations caused by geometrical modification from the baseline. Because unsteady pressure perturbations at hypersonic conditions could be calculated by local piston theory based on initial flow field results in the optimum searching process, only one steady-state solution is required. Therefore, the optimization method described in this paper is an extremely efficient technique which combines the advantages of steady CFD and the local piston theory and thus with zero-computational cost in optimum search process. In order to investigate the applicability of local piston theory on aerodynamic prediction for blunt leading edge shape, single-objective and multi-objective optimizations for NACA0008 at various Mach numbers have been conducted with the objective to improve the lift-to-drag ratio and moment coefficient, and the optimization results have been validated by CFD and it is concluded that the optimization method based on local piston theory could be used in a wide Mach range while keeping a satisfactory efficiency and accuracy, therefore it can be employed for hypersonic airfoil optimization in the process of initial design in the engineering application.",
keywords = "airfoil, genetic algorithm, Hypersonic flow, local piston theory, optimization",
author = "Kun Ye and Qing Zhang and Main, {Haris Hameed} and Gang Wang and Zhengyin Ye and Zhan Qu",
note = "Publisher Copyright: {\textcopyright} 2016 IEEE.; 13th International Bhurban Conference on Applied Sciences and Technology, IBCAST 2016 ; Conference date: 12-01-2016 Through 16-01-2016",
year = "2016",
month = mar,
day = "9",
doi = "10.1109/IBCAST.2016.7429922",
language = "英语",
series = "Proceedings of 2016 13th International Bhurban Conference on Applied Sciences and Technology, IBCAST 2016",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
pages = "483--489",
editor = "Muhammad Zafar-uz-Zaman",
booktitle = "Proceedings of 2016 13th International Bhurban Conference on Applied Sciences and Technology, IBCAST 2016",
}