𝔖 Bobbio Scriptorium
✦   LIBER   ✦

On model constants and second order closure for curved shear flows

✍ Scribed by So, Ronald M. C.

Publisher
Springer
Year
1977
Tongue
English
Weight
559 KB
Volume
33
Category
Article
ISSN
0003-6994

No coin nor oath required. For personal study only.

✦ Synopsis

The pressure-strain correlation model of Hanjalic and Launder is extended to rotating curved shear flows. Stationary plane flow data together with the requirement that the critical Richardson number should be predicted correctly are used to determine the model constants. The value of the constants are found to be the same as those determined by Hanjalic and Launder through computer optimization. It is also found that the pressure-strain correlation model of Hanjalic and Launder has negligible effects on the shear stress relation for curved shear flows compared to the simple "return to isotropy" model of Rotta. In view of this, significant improvement on second order closure of the mean flow equations for curved shear flows cannot be obtained by improving the simple Rotta model. al , a2, a 3

Nomenclature

πŸ“œ SIMILAR VOLUMES

Computation of backward-facing step flow
Computation of backward-facing step flows by a second-order Reynolds stress closure model
✍ Robert R. Hwang; Y. F. Peng πŸ“‚ Article πŸ“… 1995 πŸ› John Wiley and Sons 🌐 English βš– 667 KB

## Abstract This paper scrutinizes the predictive ability of the differential stress equation model in complex shear flows. Two backward‐facing step flows with different expansion ratios are solved by the LRR turbulence model with an anisotropic dissipation model and the near‐wall regions of the se