Shape optimization to suppress the lift oscillation of flow past a stationary circular cylinder

被引：25
作者：
Chen, Wengang [1 ,2 ]
Li, Xintao [1 ,2 ]
Zhang, Weiwei [1 ,2 ]
机构：
[1] Northwestern Polytech Univ, Natl Key Lab Sci & Technol Aerodynam Design & Res, Xian 710072, Shaanxi, Peoples R China
[2] Northwestern Polytech Univ, Sch Aeronaut, Xian 710072, Shaanxi, Peoples R China
来源：
PHYSICS OF FLUIDS | 2019年 / 31卷 / 06期
基金：
中国国家自然科学基金;
关键词：
AERODYNAMIC DESIGN OPTIMIZATION; VORTEX-INDUCED VIBRATION; DISCRETE ADJOINT; DYNAMICS; GRIDS;
D O I：
10.1063/1.5095841
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
The suppression of lift oscillation of flow past a stationary circular cylinder is studied to delay structural fatigue at low Reynolds numbers in incompressible Newtonian fluid. Grad-based shape optimization is employed to achieve the goal. The optimization objective is the integral of the absolute value of the lift coefficient over a vortex shedding period T. The class-shape function transformation technique is chosen as a shape parameterization method. Moreover, the unsteady adjoint method is employed to calculate the gradients of the objective with respect to shape parameters. Results show that through shape optimization, the strength of vortex shedding is sufficiently suppressed in two-dimensional flow, and the lift oscillation amplitude is reduced by nearly 50%. In addition, the flow stability is significantly improved, and the lift oscillations are completely eliminated at Re = 47-60.
引用
收藏
页数：8
相关论文
共 43 条
[1]   Aerodynamic design optimization on unstructured grids with a continuous adjoint formulation [J].
Anderson, WK ;
Venkatakrishnan, V .
COMPUTERS & FLUIDS, 1999, 28 (4-5) :443-480
[2]  
[Anonymous], 2013, THESIS
[3]  
[Anonymous], 2006, P 11 AIAA ISSMO MULT
[4]   Comparison of a grid-based CFD method and vortex dynamics predictions of low Reynolds number cylinder flows [J].
Baranyi, L ;
Lewis, RI .
AERONAUTICAL JOURNAL, 2006, 110 (1103) :63-71
[5]   Multi-objective optimization of the aerodynamic shape of a long-range guided rocket [J].
Cao Runduo ;
Zhang Xiaobing .
STRUCTURAL AND MULTIDISCIPLINARY OPTIMIZATION, 2018, 57 (04) :1779-1792
[6]   Suppression of vortex-induced vibration of a circular cylinder using suction-based flow control [J].
Chen, Wen-Li ;
Xin, Da-Bo ;
Xu, Feng ;
Li, Hui ;
Ou, Jin-Ping ;
Hu, Hui .
JOURNAL OF FLUIDS AND STRUCTURES, 2013, 42 :25-39
[7]   Mesh deformation based on radial basis function interpolation [J].
de Boer, A. ;
van der Schoot, M. S. ;
Bijl, H. .
COMPUTERS & STRUCTURES, 2007, 85 (11-14) :784-795
[8]   Suppression of vortex-induced vibration using the rotary oscillation of a cylinder [J].
Du, Lin ;
Sun, Xiaofeng .
PHYSICS OF FLUIDS, 2015, 27 (02)
[9]  
Fiacco A.V., 1990, SIAM Classics in Applied Mathematics Series, V4
[10]   A sharp interface immersed boundary method for vortex-induced vibration in the presence of thermal buoyancy [J].
Garg, Hemanshul ;
Soti, Atul K. ;
Bhardwaj, Rajneesh .
PHYSICS OF FLUIDS, 2018, 30 (02)
12345