Dynamics of a multiple flexi-splitters in the wake of an elliptic cylinder

Flow induced vibrations in bluff body configurations are widely encountered in various industrial and scientific applications in the fields of aerospace, coastal, offshore, and petroleum engineering. In this study, the influence of flexible splitter plates attached in the frontal and rear surfaces of an elliptic cylinder is investigated and presented in detail. For this purpose, an in-house algorithm based on the Immersed Boundary Method (IBM) is employed such that elastodynamic equations for Lagrangian Structures and Navier-Stokes equations for the fluid flow are solved. The results of flow pattern, pressure distribution, aerodynamic forces and tip-displacement amplitudes are investigated for the case of flexible splitters attached to both frontal and rear surfaces. Finally, the influence of dual-splitters and tri-splitters attached to both frontal and rear surfaces for wide ranges of Reynolds number (Re = 50 - 150), aspect ratio (AR = 0.5 - 1.0) of the elliptic cylinder, splitter plate length (L = 1D - 6D) and flexural rigidity (EI) are discussed and presented in-detail.