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Topology Optimization of Hydrodynamic Body Shape for Drag Reduction in Low Reynolds Number Based on Variable Density Method

文献类型：期刊论文

作者N. Zhao, J. Y. Zhang, H. T. Han, Y. Z. Miao and Y. B. Deng
刊名Applied Sciences-Basel
出版日期2023
卷号13期号:9页码:23
DOI10.3390/app13095461
英文摘要This paper presents a variable density topology optimization method to numerically investigate the optimal drag-reduction shape of objects in the two-dimensional and three-dimensional flows with steady incompressible external flow conditions, taking into account material volume constraints. By introducing the porous media model, the artificial Darcy friction is added to the Navier-Stokes equation to characterize the influence of materials on the fluid. Material density is applied to implement material interpolation. By transforming the boundary integral form of viscous dissipative expression of drag into the volume integral of artificial Darcy friction and convection term, we solve the problem of drag expression on the implicit interface corresponding to the structure. The continuous adjoint method is used to analyze gradient information for iteratively solving topology optimization problems. We obtain the relevant topology optimization structures of the minimum drag shapes, investigate the effect of the low Reynolds number on the drag force corresponding to two objective functions and discuss the mechanism of drag reduction by a hydrodynamic body shape.
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语种英语
源URL[http://ir.ciomp.ac.cn/handle/181722/68233]  
专题中国科学院长春光学精密机械与物理研究所
推荐引用方式
GB/T 7714		 N. Zhao, J. Y. Zhang, H. T. Han, Y. Z. Miao and Y. B. Deng. Topology Optimization of Hydrodynamic Body Shape for Drag Reduction in Low Reynolds Number Based on Variable Density Method[J]. Applied Sciences-Basel,2023,13(9):23.
APA N. Zhao, J. Y. Zhang, H. T. Han, Y. Z. Miao and Y. B. Deng.(2023).Topology Optimization of Hydrodynamic Body Shape for Drag Reduction in Low Reynolds Number Based on Variable Density Method.Applied Sciences-Basel,13(9),23.
MLA N. Zhao, J. Y. Zhang, H. T. Han, Y. Z. Miao and Y. B. Deng."Topology Optimization of Hydrodynamic Body Shape for Drag Reduction in Low Reynolds Number Based on Variable Density Method".Applied Sciences-Basel 13.9(2023):23.

入库方式： OAI收割

来源：长春光学精密机械与物理研究所

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