Numerical and Experimental Investigations of Flow Induced by Harmonic Motion of a Circular Cylinder

摘要: A Finite-Volume method to solve the Navier-Stokes equations in an accelerated reference system was applied order calculate flow fields around dimensionally stable, moving structures. The two-dimensional velocity field and force history induced by harmonic oscillation of a circular cylinder water at rest Reynolds number Re=100 Keulegan-Carpenter KC=5 computed accurately time. Computations have been performed applying different grid levels time steps. Stable, symmetric periodic patterns occurred showing good agreement with averaged LDA measurements providing phase resolution 1 degree.