Turbulence modelling and boundary layer calculation methods
Abstract
Turbulent boundary layer prediction methods which lend themselves to working with a great variety of parameters are surveyed. The underlying applications are flows in turbomachine where nearly all imaginable complications are present. The most ambitious methods include transport equations for the Reynolds stress tensor, and at least one equation for a characteristic length. A simpler technique is the eddy viscosity concept which can often be derived from the Reynolds stress tensor equations. Even simpler are the integral methods which solve a set of boundary layer equations integrated from the wall to the edge of the boundary layer. To establish the needed closure relationships, the properties of theoretical selfsimilar solutions were investigated. Closure of Reynolds stress tensor transpot equations in the general case of a three dimensional time dependent flow and closure relationships of integral equations in the case of a two dimensional steady flow are described in detail.
 Publication:

In Von Karman Inst. for Fluid Dynamics Separated Flows in Turbomachinery Components
 Pub Date:
 1981
 Bibcode:
 1981sftc....2.....C
 Keywords:

 Boundary Layer Equations;
 Integral Equations;
 Transport Properties;
 Turbomachinery;
 Turbulent Boundary Layer;
 Closure Law;
 Predictions;
 Reynolds Stress;
 Steady Flow;
 Tensors;
 Three Dimensional Flow;
 Two Dimensional Flow;
 Fluid Mechanics and Heat Transfer