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 phenomenarnaround a circular cylinder embedded in a sea of a few thousands metersrndepth. We use a standard RANS k-ε model with Launder andrnSpalding's wall function to describe the turbulent features of the flow.rnThe governing equations are discretized using a FVM with a nonstaggeredrngrid for the momentum equations interpolation. A SIMPLECrnvelocity-pressure coupling method combined with SIP is adopted tornsolve the problem.rnAs an intermediate stage of development, we validate the developedrncode on the single-phase flow around a NACA section as well as arncircular cylinder. These two flows are regarded to have similarrncharacteristics to those of the final problem under consideration. Therncomputed results for two NACA sections are compared with bothrnexperimental and numerical data, whereas those for a circular cylinderrnare compared with experimental data only. A preliminary computationrnof a single-phase injection flow through a cylindrical body is brieflyrnpresented. As a conclusion, the code developed in the present study hasrnproved to be accurate, efficient and applicable to the injection flowrnthrough a cylindrical body immersed in deep water.