Study of sheet flutter with large deformation in passage flow
Study of sheet flutter with large deformation in passage flow
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DOI：
10.1299/transjsme.15-00654
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发表时间：
2016
期刊：
影响因子：
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通讯作者：
A. Yamano;A. Shintani;Tomohiro Ito;C. Nakagawa
中科院分区：
文献类型：
--
作者：
A. Yamano;A. Shintani;Tomohiro Ito;C. Nakagawa
本文报道了大变形通道流中薄板颤振和尾缘涡脱落的数值模拟。柔性板的运动方程具有开尔文-伏格特型材料阻尼。为了满足尾缘流动的规则性条件，采用离散涡的形式。首先，将均匀流动下的数值模型与前人的研究进行了对比，验证了该模型的正确性。利用验证的仿真模型，研究了材料阻尼、通道宽度与颤振特性之间的关系。阐明了材料阻尼和通道宽度对颤振行为和颤振能量收集效率的影响。
This study reports about the numerical simulation of the sheet flutter in passage flow with large deformation and vortex shedding from trailing-edge. The equation of motion for flexible sheet has the Kelvin–Voigt-type material damping. Discrete vortices are shed to satisfy the regularity condition of flow at trailing-edge. At first, our numerical model under the uniform flow was compared with the preceding study to verify this model. Using the validated simulation model, we investigated the relationship among the material damping, width of passage and behavior of flutter. We clarified that material damping and passage width affect the flutter behavior and the efficiency of energy harvest due to flutter.