LARGE-EDDY SIMULATION OF TURBULENT NATURAL-CONVECTION IN CONCENTRIC HORIZONTAL ANNULI

被引：20

作者：

MIKI, Y

FUKUDA, K

TANIGUCHI, N

机构：

[1] KYUSHU UNIV,FAC ENGN,DEPT NUCL ENGN,FUKUOKA 812,JAPAN

[2] KYUSHU UNIV,INTERDISCIPLINARY GRAD SCH ENGN SCI,DEPT ENERGY CONVERS,KASUGA,FUKUOKA 816,JAPAN

来源：

INTERNATIONAL JOURNAL OF HEAT AND FLUID FLOW | 1993年 / 14卷 / 03期

关键词：

TURBULENT NATURAL CONVECTION; CONCENTRIC HORIZONTAL ANNULI; LARGE EDDY SIMULATION; SUBGRID SCALE MODEL; SMAGORINSKY CONSTANT; FINITE-DIFFERENCING;

D O I：

10.1016/0142-727X(93)90050-W

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The large eddy simulation (LES) based on subgrid modeling has been applied to turbulent natural convection in concentric horizontal annuli with a heated inner and a cooled outer cylinder. The unsteady three-dimensional Boussinesq approximated equations were solved using the explicit finite-difference method. The highest Rayleigh number solution obtained was 1.18 x 10(9). The time-averaged temperature distributions and the mean Nusselt numbers obtained here are in reasonable agreement with the experimental results of other researchers. The effects of the number of grid cells and the Smagorinsky constant on the time-averaged temperature distributions and turbulence properties are also discussed.

引用

页码：210 / 216

页数：7

共 38 条

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