Control of Marangoni instability in a layer of variable-viscosity fluid

S. Awang Kechil; I. Hashim

doi:10.1016/j.icheatmasstransfer.2008.06.006

Control of Marangoni instability in a layer of variable-viscosity fluid

S. Awang Kechil
, I. Hashim

Universiti Teknologi MARA
Universiti Kebangsaan Malaysia

Research output: Contribution to journal › Article › peer-review

28 Scopus citations

Abstract

The Marangoni instability in a temperature-dependent-viscosity fluid layer with deformable free surface under the influence of a linear feedback control strategy is investigated. The exact analytical solution for the stationary modes is developed and the effects of the interaction between variable viscosity, controller gains, free surface deformation, gravity waves and heat transfer mechanism on the onset of Marangoni convection are determined. The destabilizing effect of exponential viscosity variation can be effectively suppressed through small controlled perturbations in the thermal boundary data.

Original language	English
Pages (from-to)	1368-1374
Number of pages	7
Journal	International Communications in Heat and Mass Transfer
Volume	35
Issue number	10
DOIs	https://doi.org/10.1016/j.icheatmasstransfer.2008.06.006
State	Published - Dec 2008
Externally published	Yes

Keywords

Deformable free surface
Feedback control
Instability
Marangoni convection
Variable viscosity

Access to Document

10.1016/j.icheatmasstransfer.2008.06.006

Cite this

@article{93389708557a46478f4d18ccc0b43e64,

title = "Control of Marangoni instability in a layer of variable-viscosity fluid",

abstract = "The Marangoni instability in a temperature-dependent-viscosity fluid layer with deformable free surface under the influence of a linear feedback control strategy is investigated. The exact analytical solution for the stationary modes is developed and the effects of the interaction between variable viscosity, controller gains, free surface deformation, gravity waves and heat transfer mechanism on the onset of Marangoni convection are determined. The destabilizing effect of exponential viscosity variation can be effectively suppressed through small controlled perturbations in the thermal boundary data.",

keywords = "Deformable free surface, Feedback control, Instability, Marangoni convection, Variable viscosity",

author = "\{Awang Kechil\}, S. and I. Hashim",

year = "2008",

month = dec,

doi = "10.1016/j.icheatmasstransfer.2008.06.006",

language = "English",

volume = "35",

pages = "1368--1374",

journal = "International Communications in Heat and Mass Transfer",

issn = "0735-1933",

publisher = "Elsevier Ltd",

number = "10",

}

TY - JOUR

T1 - Control of Marangoni instability in a layer of variable-viscosity fluid

AU - Awang Kechil, S.

AU - Hashim, I.

PY - 2008/12

Y1 - 2008/12

N2 - The Marangoni instability in a temperature-dependent-viscosity fluid layer with deformable free surface under the influence of a linear feedback control strategy is investigated. The exact analytical solution for the stationary modes is developed and the effects of the interaction between variable viscosity, controller gains, free surface deformation, gravity waves and heat transfer mechanism on the onset of Marangoni convection are determined. The destabilizing effect of exponential viscosity variation can be effectively suppressed through small controlled perturbations in the thermal boundary data.

AB - The Marangoni instability in a temperature-dependent-viscosity fluid layer with deformable free surface under the influence of a linear feedback control strategy is investigated. The exact analytical solution for the stationary modes is developed and the effects of the interaction between variable viscosity, controller gains, free surface deformation, gravity waves and heat transfer mechanism on the onset of Marangoni convection are determined. The destabilizing effect of exponential viscosity variation can be effectively suppressed through small controlled perturbations in the thermal boundary data.

KW - Deformable free surface

KW - Feedback control

KW - Instability

KW - Marangoni convection

KW - Variable viscosity

UR - https://www.scopus.com/pages/publications/49349109306

U2 - 10.1016/j.icheatmasstransfer.2008.06.006

DO - 10.1016/j.icheatmasstransfer.2008.06.006

M3 - Article

AN - SCOPUS:49349109306

SN - 0735-1933

VL - 35

SP - 1368

EP - 1374

JO - International Communications in Heat and Mass Transfer

JF - International Communications in Heat and Mass Transfer

IS - 10

ER -

Control of Marangoni instability in a layer of variable-viscosity fluid

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this