ONSET OF SURFACE-TENSION-DRIVEN BENARD CONVECTION

Authors
SCHATZ MF VANHOOK SJ MCCORMICK WD SWIFT JB SWINNEY HL
Citation
Mf. Schatz et al., ONSET OF SURFACE-TENSION-DRIVEN BENARD CONVECTION, Physical review letters, 75(10), 1995, pp. 1938-1941
Citations number
22
Categorie Soggetti
Physics
Journal title
Physical review letters → ACNP
ISSN journal
00319007
Volume
75
Issue
10
Year of publication
1995
Pages
1938 - 1941
Database
ISI
SICI code
0031-9007(1995)75:10<1938:OOSBC>2.0.ZU;2-5
Abstract
Experiments with shadowgraph visualization reveal a subcritical transi tion to a hexagonal convection pattern in thin liquid layers that have a free upper surface and are heated from below. The measured critical Marangoni number (84) and observation of hysteresis (3%) agree with t heory. In some experiments, imperfect bifurcation is observed and is a ttributed to deterministic forcing caused in part by the lateral bound aries in the experiment.