Comparisons of turbulentflow calculations with experiment
Abstract
Predictions of the (k, epsilon) turbulence model are compared with experiment for a number of standard cases: fully developed flows in ducts and pipes, developing pipe flow, flows through axisymmetric and rectangular sudden expansions, flows over steps, and axisymmetric swirling flows. In a general way, it appears that the (k, epsilon) model gives good predictions of velocity profiles and good enough estimates of pressure drops to be useful for many engineering applications. Estimates of turbulence intensities and stresses are much less reliable and range from excellent for fully developed flows to unsatisfactory for strongly swirling flows.
 Publication:

NASA STI/Recon Technical Report N
 Pub Date:
 August 1981
 Bibcode:
 1981STIN...8210367G
 Keywords:

 Computation;
 Flow Velocity;
 Mathematical Models;
 Pressure Distribution;
 Turbulent Flow;
 Axisymmetric Flow;
 Flow Geometry;
 KEpsilon Turbulence Model;
 Pipe Flow;
 Fluid Mechanics and Heat Transfer