Thermocapillary Convection in a Model Float Zone

被引：14

作者：

Hyer, J. R. ^{[1
]}

Jankowski, D. F. ^{[1
]}

Neitzel, G. P. ^{[2
]}

机构：

[1] Arizona State Univ, Dept Mech & Aerosp Engn, Tempe, AZ 85287 USA

[2] Arizona State Univ, Dept Mech Engn, Tempe, AZ 85287 USA

来源：

JOURNAL OF THERMOPHYSICS AND HEAT TRANSFER | 1991年 / 5卷 / 04期

关键词：

D O I：

10.2514/3.302

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

A finite element method has been used to study thermocapillary convection in a model of relevance to the float-zone, crystal-growth process. The geometry consists of a pair of horizontal isothermal surfaces with a Boussinesq liquid suspended between them. Because of the variation of surface tension with temperature, the temperature gradient along the free surface drives thermocapillary convection. The free surface is allowed to deform, and its location is calculated along with the velocity and temperature fields. Cases in which thermocapillarity dominates and others in which it interacts with an unstable axial buoyancy gradient are treated. To obtain information of possible interest to potential microgravity applications, the influence of the Grashof number is investigated.

引用

页码：577 / 582

页数：6

共 12 条

[1] EXPERIMENTS ON STEADY AND OSCILLATORY TEMPERATURE DISTRIBUTION IN A FLOATING ZONE DUE TO THE MARANGONI CONVECTION [J].

CHUN, CH .

ACTA ASTRONAUTICA, 1980, 7 (4-5) :479-488

[2] THERMOCAPILLARY FREE BOUNDARIES IN CRYSTAL-GROWTH [J].

CUVELIER, C ;

DRIESSEN, JM .

JOURNAL OF FLUID MECHANICS, 1986, 169 :1-26

[3]

Engelman M. S., 1986, COMPUTATIONAL TECHNI, P47

[4]

Fu B.I., 1983, JPN J APPL PHYS, V29, P1

[5] THE EFFECT OF THE CHOICE OF THE REFERENCE PRESSURE LOCATION IN NUMERICAL MODELING OF INCOMPRESSIBLE-FLOW [J].

JACKSON, CP .

INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN FLUIDS, 1984, 4 (02) :147-158

[6] OSCILLATORY THERMOCAPILLARY CONVECTION IN A SIMULATED FLOATING-ZONE CONFIGURATION [J].

KAMOTANI, Y ;

OSTRACH, S ;

VARGAS, M .

JOURNAL OF CRYSTAL GROWTH, 1984, 66 (01) :83-90

[7] STEADY CONVECTION CAUSED BY THE TEMPERATURE INHOMOGENEITY IN A CYLINDRICAL FLOATING ZONE [J].

KOBAYASHI, N .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS, 1988, 27 (01) :20-24

[8] FLUID-MECHANICS IN CRYSTAL-GROWTH - THE 1982 FREEMAN SCHOLAR LECTURE [J].

OSTRACH, S .

JOURNAL OF FLUIDS ENGINEERING-TRANSACTIONS OF THE ASME, 1983, 105 (01) :5-20

[9] STEADY AND OSCILLATORY THERMOCAPILLARY CONVECTION IN LIQUID COLUMNS WITH FREE CYLINDRICAL SURFACE [J].

PREISSER, F ;

SCHWABE, D ;

SCHARMANN, A .

JOURNAL OF FLUID MECHANICS, 1983, 126 (JAN) :545-567

[10]

Schwabe D., 1989, PREFECT POLICE F PEC

← 1 2 →