Computations with a Two-Equation Model of Turbulence for the 1981 Stanford Olympics
Abstract
This report summarizes results of 62 computations performed for and included in the proceedings of the 1981 Stanford Conference on Complex Turbulent Flows (commonly referred to as the 1981 Stanford Olympics). The objective of this study has been to use a single set of equations modeling turbulent flow phenomena, with no adjustment of closure coefficients from flow to flow, to predict a relatively wide range of turbulent flows. In so doing we have been able to objectively assess the current state of development of a two-equation model of turbulence and to establish its range of applicability. Applications include: (a) homogeneous turbulent flows; (b) incompressible external and internal flows, and (c) compressible external flows. One of the incompressible cases is flow past a backward facing step and includes boundary-layer separation; all other cases have no separation. The model employed in our computations predicts flow properties in quite close agreement with experimental data for the constant-pressure boundary layer, the incompressible mixing layer and for flows with surface mass transfer. Additionally, predicted effects of Mach number and surface cooling on a constant-pressure boundary layer are close to measured effects.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1981
- Accession Number
- ADA110693
Entities
People
- David C. Wilcox