Author(s)

S. Tigrek & Masahiko Isobe

Abstract

A general numerical method for the solution of the complete Reynolds-averaged Navier-Stokes equations for ID and 2D oscillatory flow is described. The method uses orthogonal/nonorthogonal co-ordinates, contravariant and covariant velocity components and a pressure-velocity-coupling algorithm for staggered grid system. The capability of method and the overall performance of the k-e model are demonstrated by calculations of flow over flat and rippled beds. Numerical tools that will be required for a robust code are examined. 1 Introduction Oscillatory flows can be observed in both manmade and natural environment. For example, in the nature, oscillatory turbulent boundary layer develops over the sea bottom as the surface waves approach to the shore. When the interaction

Keywords