Affiliation:
1. Development Department, AEA Technology GmbH, Staudenfeldweg, 83624 Otterfing, Germany
Abstract
A formalism will be presented which allows transforming two-equation eddy viscosity turbulence models into one-equation models. The transformation is based on Bradshaw’s assumption that the turbulent shear stress is proportional to the turbulent kinetic energy. This assumption is supported by experimental evidence for a large number of boundary layer flows and has led to improved predictions when incorporated into two-equation models of turbulence. Based on it, a new one-equation turbulence model will be derived from the k-ε model. The model will be tested against the one-equation model of Baldwin and Barth, which is also derived from the k-ε model (plus additional assumptions) and against its parent two-equation model. It will be shown that the assumptions involved in the derivation of the Baldwin-Barth model cause significant problems at the edge of a turbulent layer.
Reference29 articles.
1. Baldwin, B. S., 1993, personal communication.
2. Baldwin, B. S., and Barth, T. J., 1990, “A One-Equation Turbulence Model for High Reynolds Number Wall Bounded Flows,” NASA TM-102847.
3. Baldwin, B. S., and Lomax, H., 1978, “Thin Layer Approximation and Algebraic Model for Separated Turbulent Flows,” AIAA Paper 78-0257, Huntsville, Ala.
4. Bradshaw
P.
, FerrissD. H., AtwellN. P., 1967, “Calculation of Boundary Layer Development Using the Turbulent Energy Equations,” Journal of Fluid Mechanics, Vol. 23, pp. 31–64.
5. Cazalbou, J. B., Spalart, P. R., and Bradshaw, P., 1994, “On the Behavior of Two-Equation Models at the Edge of a Turbulent Region,” Physics of Fluids, Vol. 6(5), May.
Cited by
255 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献