Development of Flow Analysis Solver by Finite Volume Method and its Validation

摘要

The present study is aimed to analyze the multi-phase flow phenomena around a circular cylinder embedded in a sea of a few thousands meters depth. We use a standard RANS k-ε model with Launder and Spalding's wall function to describe the turbulent features of the flow. The governing equations are discretized using a FVM with a non-staggered grid for the momentum equations interpolation. A SIMPLEC velocity-pressure coupling method combined with SIP is adopted to solve the problem. As an intermediate stage of development, we validate the developed code on the single-phase flow around a NACA section as well as a circular cylinder. These two flows are regarded to have similar characteristics to those of the final problem under consideration. The computed results for two NACA sections are compared with both experimental and numerical data, whereas those for a circular cylinder are compared with experimental data only. A preliminary computation of a single-phase injection flow through a cylindrical body is briefly presented. As a conclusion, the code developed in the present study has proved to be accurate, efficient and applicable to the injection flow through a cylindrical body immersed in deep water.