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

Authors
HOLZBECHER M STEIFF A
Citation
M. Holzbecher et A. Steiff, LAMINAR AND TURBULENT FREE-CONVECTION IN VERTICAL CYLINDERS WITH INTERNAL HEAT-GENERATION, International journal of heat and mass transfer, 38(15), 1995, pp. 2893-2903
Citations number
44
Categorie Soggetti
Mechanics,"Engineering, Mechanical",Thermodynamics
Journal title
International journal of heat and mass transfer → ACNP
ISSN journal
00179310
Volume
38
Issue
15
Year of publication
1995
Pages
2893 - 2903
Database
ISI
SICI code
0017-9310(1995)38:15<2893:LATFIV>2.0.ZU;2-D
Abstract
Natural convection flow in internally heated vertical cylinders is inv estigated experimentally and numerically. Experimental facilities rest ricted the Rayleigh number range from 3 x 10(10) to 1 x 10(14), coveri ng the laminar boundary layer regime and the first transitions to turb ulent flow. Laminar and turbulent natural convection in cavities diffe r significantly with regard to the influence of boundary conditions. F or the numerically calculating turbulent flow, several low-Reynolds nu mber k-epsilon models are tested. They all fail to correctly predict e xperimentally observed laminar-turbulent transitions.