Thermocapillary Convection Instability in Shallow Annular Pools by Linear Stability Analysis

Autor:	Wan-Yuan Shi, Nobuyuki Imaishi, Xi Liu, M. K. Ermakov, You-Rong Li, Guoyuan Li, Lan Peng
Rok vydání:	2010
Předmět:	Convection Marangoni effect Materials science Prandtl number Thermodynamics Mechanics Condensed Matter Physics Instability Electronic Optical and Magnetic Materials symbols.namesake Linear stability analysis symbols Wavenumber Phase velocity Linear stability
Zdroj:	Journal of Superconductivity and Novel Magnetism. 23:1185-1188
ISSN:	1557-1947 1557-1939
DOI:	10.1007/s10948-010-0661-8
Popis:	The thermocapillary convection instability in shallow annular pools with Prandtl numbers (Pr) from 0.011 to 57.9, differentially heated at the outer wall and cooled at the inner wall, is investigated numerically. The critical Marangoni numbers (Mac), critical azimuthal wave numbers (mc) and critical phase velocities (ωc) for the incipience of oscillatory flow are determined by linear stability analysis. The results indicate that the Mac increases steeply with increase of Pr number when Pr≤15.9, while it increases slightly with increase of Pr between Pr=23.9 and 57.9. The mc and ωc decrease with increase of Pr number.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::ed5ea519d83fd71f93e98dd97b98d4b6 https://doi.org/10.1007/s10948-010-0661-8 Zobrazit plný text záznamu Full text from SpringerLink