Low-Reynolds-number flow around an oscillating circular cylinder using a cell viscous boundary element method (Q2712165)

This study investigates flow fields from transversely oscillating circular cylinders in water at rest. The cell boundary element method is modified for the study of oscillating cylinders or manoeuvring bodies. An unstructured mesh and a primitive-variable formulation are adopted to construct a hybrid approach involving boundary element and finite element methods. Cell equations are generated using the principles of boundary element method, and global equations are derived following the finite element method procedure. An extension of the algorithm to the multi-body problem is also considered. The case of two cylinders oscillating in synchronization is investigated for tandem arrangement and for side-by side positions. The numerical results obtained are validated by comparing them with experimental results.