LAMINAR AND TURBULENT FREE-CONVECTION IN VERTICAL CYLINDERS WITH INTERNAL HEAT-GENERATION

被引：20

作者：

HOLZBECHER, M ^{[1
]}

STEIFF, A ^{[1
]}

机构：

[1] UNIV DORTMUND,DEPT CHEM ENGN,D-44221 DORTMUND,GERMANY

来源：

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | 1995年 / 38卷 / 15期

关键词：

D O I：

10.1016/0017-9310(95)00031-4

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Natural convection flow in internally heated vertical cylinders is investigated experimentally and numerically. Experimental facilities restricted the Rayleigh number range from 3 x 10(10) to 1 x 10(14), covering the laminar boundary layer regime and the first transitions to turbulent flow. Laminar and turbulent natural convection in cavities differ significantly with regard to the influence of boundary conditions. For the numerically calculating turbulent flow, several low-Reynolds number k-epsilon models are tested. They all fail to correctly predict experimentally observed laminar-turbulent transitions.

引用

页码：2893 / 2903

页数：11

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