In an effort to gain a better understanding of vortex-induced vibrations (VIV), we present three-dimensional numerical simulations of VIV of circular cylinders. We consider operating conditions that correspond to a Reynolds number of , low structural mass and damping (, ), a reduced velocity of , and allow for two degree-of-freedom ( and ) motion. The numerical implementation makes use of overset (Chimera) grids, in a multiple block environment where the workload associated with the blocks is distributed among multiple processors working in parallel. The three-dimensional grid around the cylinder is allowed to undergo arbitrary motions with respect to fixed background grids, eliminating the need for grid regeneration as the structure moves on the fluid mesh.
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August 2007
Technical Papers
Three-Dimensional Numerical Simulations of Circular Cylinders Undergoing Two Degree-of-Freedom Vortex-Induced Vibrations
Juan P. Pontaza,
Juan P. Pontaza
Department of Mechanical Engineering,
Texas A&M University
, College Station, Texas 77843
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Hamn-Ching Chen
Hamn-Ching Chen
Department of Civil Engineering, Ocean Engineering Program,
Texas A&M University
, College Station, Texas 77843
Search for other works by this author on:
Juan P. Pontaza
Department of Mechanical Engineering,
Texas A&M University
, College Station, Texas 77843
Hamn-Ching Chen
Department of Civil Engineering, Ocean Engineering Program,
Texas A&M University
, College Station, Texas 77843J. Offshore Mech. Arct. Eng. Aug 2007, 129(3): 158-164 (7 pages)
Published Online: November 12, 2006
Article history
Received:
April 17, 2006
Revised:
November 12, 2006
Citation
Pontaza, J. P., and Chen, H. (November 12, 2006). "Three-Dimensional Numerical Simulations of Circular Cylinders Undergoing Two Degree-of-Freedom Vortex-Induced Vibrations." ASME. J. Offshore Mech. Arct. Eng. August 2007; 129(3): 158–164. https://doi.org/10.1115/1.2746396
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