Lattice Boltzmann Simulation of the Cross Flow Over a Cantilevered and Longitudinally Vibrating Circular Cylinder
XIA Yong1, LU De-Tang2, LIU Yang3, XU You-Sheng1
1Institute of Condensed Matter Physics, Zhejiang Normal University, Jinhua 3210042Department of Mechanics and Mechanical Engineering, University of Science and Technology of China, Hefei 2300273Department of Mechanical Engineering, The Hong Kong Polytechnic University, Kowloon, Hong Kong
Lattice Boltzmann Simulation of the Cross Flow Over a Cantilevered and Longitudinally Vibrating Circular Cylinder
XIA Yong1, LU De-Tang2, LIU Yang3, XU You-Sheng1
1Institute of Condensed Matter Physics, Zhejiang Normal University, Jinhua 3210042Department of Mechanics and Mechanical Engineering, University of Science and Technology of China, Hefei 2300273Department of Mechanical Engineering, The Hong Kong Polytechnic University, Kowloon, Hong Kong
摘要The multiple-relaxation-time lattice Boltzmann method (MRT-LBM) is implemented to numerically simulate the cross flow over a longitudinal vibrating circular cylinder. This research is carried out on a three-dimensional (3D) finite cantilevered cylinder to investigate the effect of forced vibration on the wake characteristics and the 3D effect of a cantilevered cylinder. To meet the accuracy of this method, the present calculation is carried out at a low Reynolds number Re=100, as well as to make the vibration obvious, we make the vibration strong enough. The calculation results indicate that the vibration has significant influence on the wake characteristics. When the vibrating is big enough, our early works show that the 2D vortex shedding would be locked up by vibration. Contrarily, this phenomenon would not appear in the present 3D case because of the end effect of the cantilevered cylinder.
Abstract：The multiple-relaxation-time lattice Boltzmann method (MRT-LBM) is implemented to numerically simulate the cross flow over a longitudinal vibrating circular cylinder. This research is carried out on a three-dimensional (3D) finite cantilevered cylinder to investigate the effect of forced vibration on the wake characteristics and the 3D effect of a cantilevered cylinder. To meet the accuracy of this method, the present calculation is carried out at a low Reynolds number Re=100, as well as to make the vibration obvious, we make the vibration strong enough. The calculation results indicate that the vibration has significant influence on the wake characteristics. When the vibrating is big enough, our early works show that the 2D vortex shedding would be locked up by vibration. Contrarily, this phenomenon would not appear in the present 3D case because of the end effect of the cantilevered cylinder.
XIA Yong;LU De-Tang;LIU Yang;XU You-Sheng. Lattice Boltzmann Simulation of the Cross Flow Over a Cantilevered and Longitudinally Vibrating Circular Cylinder[J]. 中国物理快报, 2009, 26(3): 34702-034702.
XIA Yong, LU De-Tang, LIU Yang, XU You-Sheng. Lattice Boltzmann Simulation of the Cross Flow Over a Cantilevered and Longitudinally Vibrating Circular Cylinder. Chin. Phys. Lett., 2009, 26(3): 34702-034702.
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2009, Vol. 26 
