The effects of external turbulence on the velocity field in the wake of an ellipsoid of revolution
Abstract
A secondorder differential model, universal with respect to the turbulent Reynolds number Rlambda, is used for the numerical simulation of the velocity field in the wake of an ellipsoid of revolution. For an unperturbed external flow, similarity zones of high (Rlambda much greater than 1) and low (Rlambda less than 1) turbulence are defined, and the existing Phillips laws are confirmed for Rlambda less than 1. Furthermore, the effects of the energy, structural, and dynamic states of external isotropic turbulence on the velocity field dynamics in the far wake are investigated. For the near wake a close agreement was obtained between the results of calculations and experimental data.
 Publication:

Inzhenerno Fizicheskii Zhurnal
 Pub Date:
 April 1985
 Bibcode:
 1985InFiZ..48..538K
 Keywords:

 Bodies Of Revolution;
 Flow Velocity;
 Turbulence Effects;
 Turbulent Wakes;
 Velocity Distribution;
 Differential Equations;
 Ellipsoids;
 Isotropic Turbulence;
 Reynolds Number;
 Fluid Mechanics and Heat Transfer