TEMPERATURE SPECTRUM IN SURFACE-TENSION DRIVEN BENARD CONVECTION

Authors
THESS A ORSZAG SA
Citation
A. Thess et Sa. Orszag, TEMPERATURE SPECTRUM IN SURFACE-TENSION DRIVEN BENARD CONVECTION, Physical review letters, 73(4), 1994, pp. 541-544
Citations number
17
Categorie Soggetti
Physics
Journal title
Physical review letters → ACNP
ISSN journal
00319007
Volume
73
Issue
4
Year of publication
1994
Pages
541 - 544
Database
ISI
SICI code
0031-9007(1994)73:4<541:TSISDB>2.0.ZU;2-2
Abstract
We report numerical simulations of Benard convection in infinite Prand tl number fluids driven by thermocapillary forces. At high Marangoni n umbers a spectrum E(k) is similar to k-3 of surface temperature fluctu ations is established due to the formation bf discontinuities of the t emperature gradient in the form of thermal ripples between contiguous convective cells. The results support the applicability of Sivashinsky 's model equation beyond its mathematical limit of validity.