TEMPERATURE AND VELOCITY PROFILES OF TURBULENT CONVECTION IN WATER

Authors
TILGNER A BELMONTE A LIBCHABER A
Citation
A. Tilgner et al., TEMPERATURE AND VELOCITY PROFILES OF TURBULENT CONVECTION IN WATER, Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics, 47(4), 1993, pp. 2253-2256
Citations number
14
Categorie Soggetti
Physycs, Mathematical","Phsycs, Fluid & Plasmas
Journal title
Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics → ACNP
ISSN journal
1063651X
Volume
47
Issue
4
Year of publication
1993
Pages
2253 - 2256
Database
ISI
SICI code
1063-651X(1993)47:4<2253:TAVPOT>2.0.ZU;2-I
Abstract
Measurements of temperature and velocity profiles in a convection cell of aspect ratio 1 at a Rayleigh number of 1.1 X 10(9) and a Prandtl n umber (Pr) of 6.6 are presented. A large-scale flow persists in the ce ll. The temperature boundary layer is entirely contained in the viscou s boundary layer and the velocity field is smooth on the characteristi c length scale of temperature variations. The core of the cell is stab ly stratified. Most of the heat transported between the plates is carr ied by the general circulation and does not traverse the core of the c ell. Comparison is made with observations at Pr = 0.7.