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Experiment and numerical simulation on the characteristics of fluid–structure interactions of non-rigid airships 被引量:1
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作者 Xiaocui Wu Yiwei Wang +2 位作者 Chenguang Huang Yubiao Liu Lingling Lu 《Theoretical & Applied Mechanics Letters》 CAS CSCD 2015年第6期258-261,共4页
Fluid-structure interaction is an important issue for non-rigid airships with inflated envelopes. In this study, a wind tunnel test is conducted, and a loosely coupled procedure is correspondingly established for nume... Fluid-structure interaction is an important issue for non-rigid airships with inflated envelopes. In this study, a wind tunnel test is conducted, and a loosely coupled procedure is correspondingly established for numerical simulation based on computational fluid dynamics and nonlinear finite element analysis methods. The typical results of the numerical simulation and wind tunnel experiment, including the overall lift and deformation, are in good agreement with each other. The results obtained indicate that the effect of fluid-structure interaction is noticeable and should be considered for non-rigid airships. Flow- induced deformation can further intensify the upward lift force and pitching moment, which can lead to a large deformation. Under a wind speed of 15 m/s, the lift force of the non-rigid model is increased to approximatelv 60% compared with that of the rigid model under a high angle of attack. 展开更多
关键词 Fluid-structure interaction Non-rigid airships numerical simulation wind tunnel test
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