TY - GEN
T1 - Hydrodynamic interactions between a cylinder and an attached elastic plate
AU - Dong, Dibo
AU - Chen, Weishan
AU - Shi, Shengjun
AU - Han, Zhenbo
AU - Hou, Zhenxiu
N1 - Publisher Copyright:
© 2015 IEEE.
PY - 2015/11/24
Y1 - 2015/11/24
N2 - An elastic plate behind a rigid cylinder in viscous flow is modeled numerically by an immersed boundary-lattice Boltzmann method (IB-LBM). The hydrodynamic interactions of a upstream cylinder and a adjacent passively flapping plate are studied by varying the length and bending stiffness of the plate. Two patterns of the plate are found in the simulation results, if the plate is short enough, it would curl up because of the attraction of the suction zone behind the cylinder. With the increase of the plate's length, it will stretch and flap in a stable period. The cylinder has a strong influence on the dynamics of the plate and the plate also changes the vortex shedding of the cylinder and the shape of suction zone. With a downstream adjacent plate, the cylinder can always enjoys a drag reduction, longer the plate is, less drag the cylinder experiences. The vortex shedding frequency of the cylinder is larger than that of the single cylinder and equal to the plate's flapping frequency. This study may help to understand the energy saving of flexible bodies stay in the wake of a rigid structure and the hydrodynamic interactions between them.
AB - An elastic plate behind a rigid cylinder in viscous flow is modeled numerically by an immersed boundary-lattice Boltzmann method (IB-LBM). The hydrodynamic interactions of a upstream cylinder and a adjacent passively flapping plate are studied by varying the length and bending stiffness of the plate. Two patterns of the plate are found in the simulation results, if the plate is short enough, it would curl up because of the attraction of the suction zone behind the cylinder. With the increase of the plate's length, it will stretch and flap in a stable period. The cylinder has a strong influence on the dynamics of the plate and the plate also changes the vortex shedding of the cylinder and the shape of suction zone. With a downstream adjacent plate, the cylinder can always enjoys a drag reduction, longer the plate is, less drag the cylinder experiences. The vortex shedding frequency of the cylinder is larger than that of the single cylinder and equal to the plate's flapping frequency. This study may help to understand the energy saving of flexible bodies stay in the wake of a rigid structure and the hydrodynamic interactions between them.
KW - Flexible plate
KW - Hydrodynamic interactions
KW - Lattice Boltzmann method
UR - https://www.scopus.com/pages/publications/84962491579
U2 - 10.1109/FPM.2015.7337297
DO - 10.1109/FPM.2015.7337297
M3 - 会议稿件
AN - SCOPUS:84962491579
T3 - Proceedings of 2015 International Conference on Fluid Power and Mechatronics, FPM 2015
SP - 1177
EP - 1182
BT - Proceedings of 2015 International Conference on Fluid Power and Mechatronics, FPM 2015
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 7th International Conference on Fluid Power and Mechatronics, FPM 2015
Y2 - 5 August 2015 through 7 August 2015
ER -