Convective oscillation in binary and ternary polymer solutions with the Soret effect

被引：13

作者：

Sakurai, S ^{[1
]}

Wang, YC ^{[1
]}

Kushiro, T ^{[1
]}

Nambu, T ^{[1
]}

Nomura, S ^{[1
]}

机构：

[1] Kyoto Inst Technol, Dept Polymer Sci & Engn, Sakyo Ku, Kyoto 6068585, Japan

来源：

CHEMICAL PHYSICS LETTERS | 2001年 / 348卷 / 3-4期

关键词：

D O I：

10.1016/S0009-2614(01)01102-2

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We report experimental observations of a novel kind of convective oscillation in binary and ternary polymer solutions confined in a very thin layer (0.1 mm). This convective oscillation was considered to be driven by the Soret effect, which has been recently predicted by theory for a fluid mixture with a very small value of the Lewis number, namely, having much smaller mass diffusivity as compared to thermal diffusivity. For binary polymer solutions of polystyrene (PS) in dioctyl phthalate (DOP) and for ternary solutions of PS/PB/DOP (polybutadiene (PB)), the magnitude of convective flow was oscillating with time until reaching a stationary state. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：242 / 248

页数：7

共 26 条

[1] CONVECTION IN A BINARY MIXTURE HEATED FROM BELOW
AHLERS, G
REHBERG, I
[J]. PHYSICAL REVIEW LETTERS, 1986, 56 (13) : 1373 - 1376
[2] [Anonymous], 1964, J CHEM ENG DATA
[3] PHASE-SEPARATION OF A CRITICAL BINARY MIXTURE SUBJECTED TO A TEMPERATURE-GRADIENT
ASSENHEIMER, M
KHAYKOVICH, B
STEINBERG, V
[J]. PHYSICA A, 1994, 208 (3-4): : 373 - 393
[4] NON-LINEAR CONVECTION IN A LAYER WITH NEARLY INSULATING BOUNDARIES
BUSSE, FH
RIAHI, N
[J]. JOURNAL OF FLUID MECHANICS, 1980, 96 (JAN) : 243 - 256
[5] Chandrasekhar S, 1981, HYDRODYNAMIC HYDROMA
[6] PATTERN-FORMATION OUTSIDE OF EQUILIBRIUM
CROSS, MC
HOHENBERG, PC
[J]. REVIEWS OF MODERN PHYSICS, 1993, 65 (03) : 851 - 1112
[7] *DIPPR, 801 DIPPR
[8] LARGE CELLS IN NON-LINEAR RAYLEIGH-BENARD CONVECTION
GERTSBERG, VL
SIVASHINSKY, GI
[J]. PROGRESS OF THEORETICAL PHYSICS, 1981, 66 (04): : 1219 - 1229
[9] SORET-DRIVEN THERMOSOLUTAL CONVECTION
HURLE, DTJ
[J]. JOURNAL OF FLUID MECHANICS, 1971, 47 (JUN29) : 667 - &
[10] THE TRANSITION FROM ROLL TO SQUARE-CELL SOLUTIONS IN RAYLEIGH-BENARD CONVECTION
JENKINS, DR
PROCTOR, MRE
[J]. JOURNAL OF FLUID MECHANICS, 1984, 139 (FEB) : 461 - 471

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