TY - JOUR
T1 - Harmonic oscillations of a thin lamina in a quiescent viscous fluid
T2 - A numerical investigation within the framework of the lattice Boltzmann method
AU - De Rosis, Alessandro
AU - Lévêque, Emmanuel
PY - 2015/6/18
Y1 - 2015/6/18
N2 - The flow physics induced by the harmonic motion of a rigid thin lamina in a quiescent viscous fluid is investigated numerically by a combined lattice Boltzmann-immersed boundary approach. Consistency and accuracy are carefully examined and validated against experimental results for oscillations of small and moderate amplitudes, and against analytical predictions for zero-amplitude oscillations. Comparisons with previous lattice Boltzmann simulations highlight the benefit of the present approach in terms of accuracy. A new empirical law for the hydrodynamic function, which accounts for oscillations of large amplitudes (similar to the length of the lamina) is introduced.
AB - The flow physics induced by the harmonic motion of a rigid thin lamina in a quiescent viscous fluid is investigated numerically by a combined lattice Boltzmann-immersed boundary approach. Consistency and accuracy are carefully examined and validated against experimental results for oscillations of small and moderate amplitudes, and against analytical predictions for zero-amplitude oscillations. Comparisons with previous lattice Boltzmann simulations highlight the benefit of the present approach in terms of accuracy. A new empirical law for the hydrodynamic function, which accounts for oscillations of large amplitudes (similar to the length of the lamina) is introduced.
KW - Fluid-structure interaction
KW - Hydrodynamic load
KW - Immersed boundary method
KW - Lattice Boltzmann method
UR - http://www.scopus.com/inward/record.url?scp=84935895067&partnerID=8YFLogxK
U2 - 10.1016/j.compstruc.2015.05.034
DO - 10.1016/j.compstruc.2015.05.034
M3 - Article
AN - SCOPUS:84935895067
SN - 0045-7949
VL - 157
SP - 209
EP - 217
JO - Computers and Structures
JF - Computers and Structures
ER -