Numerical Calculations of Ship Stern Flows at Full-Scale Reynolds Numbers

摘要

This paper investigates the numerical calculation of ship stern flows at full scale Reynolds numbers, avoiding the use of wall-functions for the description of the near-wall flow behaviour. The calculation method is based on the Reduced Navier-Stokes equations, which allow the use of large numbers of grid nodes even with modest computer resources. The grid dependency studies show that it is possible to obtain grid independent solutions in the flow around the HSVA tanker. The comparison of the solutions at model scale and full scale Reynolds numbers for the flows around the HSVA tanker and the Mystery tanker show a strong dependence of the flowfield on the Reynolds number.