Abstract
Using ANSYS-CFX, a general purpose fluid dynamics program, the vortex-induced vibration (VIV) of a variable cross-section cylinder is simulated under uniform current with high Reynolds numbers. Large eddy simulation (LES) is conducted for studying the fluid-structure interaction. The vortex shedding in the wake, the motion trajectories of a cylinder, the variation of drag and lift forces on the cylinder are analyzed. The results show that the vortices of variable cross-section cylinder are chaotic and are varying along the cylinder. In places where cross-sections are changing significantly, the vortices are more irregular. The motion trail of the cylinder is almost the same but irregular. The drag and lift coefficients of the cylinder are varying with the changes of diameters.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Assi, G. R. S., Meneghini, J. R., Aranha, J. A. P., Bearman, P. W., and Casaprima, E., 2006. Experimental investigation of flow-induced vibration interference between two circular cylinders. Journal of Fluids and Structures, 22: 819–827.
Breuer, M., 1998. Large eddy simulation of the subcritical flow past a circular cylinder: Numerical and modeling aspects. International Journal for Numerical Methods in Fluids, 28: 1281–1302.
Gabbai, R. D., and Benaroya, H., 2005. An overview of modeling and experiments of vortex-induced vibration of cylinders. Journal of Sound and Vibrations, 282(3–5): 575–616.
Kravchenko, A. G., and Moin, P., 2000. Numerical studies of flow over a circular cylinder at ReD=3900. Physics of Fluids, 12(2): 403–417.
Mittal, R., and Moin, P., 1997. Suitability of up wind-biased finite-difference schemes for large eddy simulation of turbulent flow. American Institute of Aeronautics and Astronautics Journal, 35(8): 1415–1417.
Sarpkaya, T., 2004. A critical review of the intrinsic nature of vortex-induced vibrations. Journal of Fluids and Structures, 19: 389–447.
Su, M. D., and Huang, S. Y., 1997, Foundation of Computational Fluid Dynamics. Tsinghua University Press, Beijing, 597pp (in Chinese).
Vandiver, J. K., Swithenbank, S., Jaiswal, V., and Marcollo, H., 2006. The effectiveness of helical strakes in the suppression of high-mode-number VIV. Offshore Technology Conference, Houston, Texas, 1–4 May 2006, OTC 18276.
Wei, Y. J., Zhu, M. S., and He, Z. Y., 2004, Large eddy simulation and spectrum analysis of flow around two square cylinders arranged side by side. Applied Mathematics and Mechanics, 25(8): 824–830 (in Chinese with English abstract).
Williamson, C. H. K., and Govardhan, R., 2008. A brief review of recent results in vortex-induced vibrations. Journal of Wind Engineering and Industrial Aerodymuics, 96(6–7): 714–735.
Xie, Z. G., Xu, C. X., Cui, G. X., and Zhang, Z. S., 2007. Large eddy simulation of flows around a square cylinder. Journal of Computational Physics, 24(2): 171–180 (in Chinese with English abstract).
Yuan, J. K., and Huang, W. P., 2010. Ansys-CFD analysis on the flow field of helical strakes around riser. Ship & Ocean Engineering, 39(4): 151–155 (in Chinese with English abstract).
Zhang, Z. S., Cui, G. X., and Xu, C. X., 2005. Theory and Modeling of Turbulence. Tsinghua University Press, Beijing, 277pp (in Chinese).
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Duan, J., Huang, W. CFD-based numerical analysis of a variable cross-section cylinder. J. Ocean Univ. China 13, 584–588 (2014). https://doi.org/10.1007/s11802-014-2048-0
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11802-014-2048-0