A study of oscillating flows over propagating ripples: part i. steady streaming

摘要

Oscillating flows over periodic ripples are numerically investigated by solv- ing the two-dimensional time-dependent incompressible Navier-Stokes equations in curvi- linear coordinates for a wider range of the parameters of KC, Re and ε, in particular for the oscillatory flow over propagating ripples. In the oscillating flows over periodic ripples, circulation cells due to the streaming effect are formed, which can help redistribute sus- pended sediments.