| FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
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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 |
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| Cite this article: |
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XIA Yong, LU De-Tang, LIU Yang et al 2009 Chin. Phys. Lett. 26 034702 |
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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.
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| Keywords:
47.32.-y
47.10.-g
47.11.-j
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Received: 19 September 2008
Published: 19 February 2009
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| PACS: |
47.32.-y
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(Vortex dynamics; rotating fluids)
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47.10.-g
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(General theory in fluid dynamics)
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47.11.-j
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(Computational methods in fluid dynamics)
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