Physical and mathematical simulation of the axisymmetric turbulent flow around a body of revolution with a large aspect ratio

A computational and experimental analysis of the properties and fundamental features of a turbulent boundary layer on an elongated axisymmetric body of revolution under conditions of an incompressible flow around it at the Reynolds number $\mathrm{Re}_L = 4{,}33\cdot 10^6$ is carried out. It is shown that the experimental values of the local and integral parameters of the boundary layer on the body of revolution are in reasonable agreement with the results of a numerical calculation performed by solving the Reynolds-averaged Navier–Stokes equations using the low-Reynolds version of the $k$–$w$ SST turbulence model. The data obtained indicate the need for careful contouring of the aft part of the body of revolution in order to minimize losses caused by the bottom drag of the aft end.