TY - GEN
T1 - Natural frequency ratio effect on 2 DOF flow induced vibration of cylindrical structures
AU - Han, Xiangxi
AU - Zhao, Chengbi
AU - Tang, Youhong
AU - Chen, Xiaoming
AU - Lin, Wei
AU - Sammut, Karl
PY - 2014
Y1 - 2014
N2 - In this study, the vortex-induced vibration (VIV) of a circular cylinder at the low Reynolds number of 200 is simulated by a transient coupled fluid-structure interaction numerical model using the combination of FLUENT and ANSYS platforms. Considering VIV with low reduced damping parameters, the trend of the lift coefficient, the drag coefficient and the displacement of the cylinder are analyzed under different oscillating frequencies of the cylinder. The frequency ratio α is a very important parameter, which has been intensively investigated here. The typical nonlinear phenomena of lockedin, beat and phases switch can be captured successfully. The evolution of vortex shedding from the cylinder and the trajectory of the 2 DOF case with varied frequency ratio is also discussed.
AB - In this study, the vortex-induced vibration (VIV) of a circular cylinder at the low Reynolds number of 200 is simulated by a transient coupled fluid-structure interaction numerical model using the combination of FLUENT and ANSYS platforms. Considering VIV with low reduced damping parameters, the trend of the lift coefficient, the drag coefficient and the displacement of the cylinder are analyzed under different oscillating frequencies of the cylinder. The frequency ratio α is a very important parameter, which has been intensively investigated here. The typical nonlinear phenomena of lockedin, beat and phases switch can be captured successfully. The evolution of vortex shedding from the cylinder and the trajectory of the 2 DOF case with varied frequency ratio is also discussed.
KW - Fluid-structure interaction
KW - Vortex-induced vibration
KW - Workbench system coupling
UR - http://link.springer.com/chapter/10.1007/978-3-642-53962-6_36
UR - http://www.scopus.com/inward/record.url?scp=84940227193&partnerID=8YFLogxK
U2 - 10.1007/978-3-642-53962-6
DO - 10.1007/978-3-642-53962-6
M3 - Conference contribution
SN - 9783642539619
VL - 405
T3 - Communications in Computer and Information Science
SP - 403
EP - 417
BT - Parallel Computational Fluid Dynamics - 25th International Conference, ParCFD 2013, Revised Selected Papers
PB - Springer
ER -