Efficient numerical simulation based on computational fluid dynamics for the dynamic stability analysis of flexible aircraft

W. G. Liu, R. Mei, W. W. Zhang, Z. Y. Ye

科研成果: 书/报告/会议事项章节会议稿件同行评审

摘要

A unified approach of numerical simulation is presented to analyze the interaction of flight dynamics and aeroelasticity of flexible aircraft. Using an unsteady aerodynamic reduced-order model (ROM) based on computational fluid dynamics (CFD), an efficient numerical simulation is proposed to simulate the dynamic response of flexible aircraft and determine flight dynamic stability characteristics from dynamic responses in the time domain. The numerical results show that strong interacting between the short-period modes of flight dynamics and the structural elastic modes of low natural frequency will impair the stability of flexible planes with high aspect-ratio wings and flexible missiles with high slenderness-ratio bodies. Two numerical simulations confirm the effectiveness and efficiency of ROM in relation to the full CFD method. The simulation yields satisfactory numerical results in the engineering field and improves the computational efficiency up to two orders of magnitude.

源语言英语
主期刊名Advanced Engineering and Technology - Proceedings of the 2014 Annual Congress on Advanced Engineering and Technology, CAET 2014
出版商Taylor and Francis - Balkema
373-378
页数6
ISBN(印刷版)9781138026360
DOI
出版状态已出版 - 2014
活动2014 Annual Congress on Advanced Engineering and Technology, CAET 2014 - Hong Kong, 香港
期限: 19 4月 201420 4月 2014

出版系列

姓名Advanced Engineering and Technology - Proceedings of the 2014 Annual Congress on Advanced Engineering and Technology, CAET 2014

会议

会议2014 Annual Congress on Advanced Engineering and Technology, CAET 2014
国家/地区香港
Hong Kong
时期19/04/1420/04/14

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