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Experiment and numerical simulation on the characteristics of fluid-structure interactions of non-rigid airships
查看参考文献12篇
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文摘
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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. Flowinduced 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 approximately 60% compared with that of the rigid model under a high angle of attack. |
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来源
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Theoretical and Applied Mechanics Letters
,2015,5(6):258-261 【核心库】
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DOI
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10.1016/j.taml.2015.11.001
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关键词
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Fluid-structure interaction
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Non-rigid airships
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Numerical simulation
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Wind tunnel test
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地址
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Institute of Mechanics, Chinese Academy of Sciences, Key Laboratory for Mechanics in Fluid Solid Coupling Systems, Chinese Academy of Sciences, Beijing, 100190
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语种
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英文 |
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文献类型
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研究性论文 |
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ISSN
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2095-0349 |
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学科
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力学 |
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基金
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国家自然科学基金
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the Youth Innovation Promotion Association of CAS
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文献收藏号
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CSCD:5590455
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