ESTIMATION OF AN EFFECTIVE RAYLEIGH NUMBER FOR CONVECTION IN A VERTICALLY INHOMOGENEOUS POROUS-MEDIUM OR CLEAR FLUID

被引：22

作者：

NIELD, DA

机构：

[1] Department of Engineering Science, University of Auckland, Auckland

来源：

INTERNATIONAL JOURNAL OF HEAT AND FLUID FLOW | 1994年 / 15卷 / 04期

关键词：

EFFECTIVE RAYLEIGH NUMBER; RAYLEIGH-BENARD CONVECTION;

D O I：

10.1016/0142-727X(94)90019-1

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The concept of an effective Rayleigh number (for a clear fluid), or effective Rayleigh-Darcy number (for a porous medium), is introduced in the context of convection in a vertically inhomogeneous horizontal layer. Estimates for this quantity, based on mean values of the physical quantities, are proposed. These estimates are compared with known, accurate results.

引用

页码：337 / 340

页数：4

共 19 条

[1] CONVECTION IN A POROUS LAYER FOR A TEMPERATURE-DEPENDENT VISCOSITY
BLYTHE, PA
SIMPKINS, PG
[J]. INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 1981, 24 (03) : 497 - 506
[2] CONVECTION IN A POROUS-MEDIUM HEATED FROM BELOW - EFFECT OF TEMPERATURE-DEPENDENT VISCOSITY AND THERMAL-EXPANSION COEFFICIENT
HORNE, RN
OSULLIVAN, MJ
[J]. JOURNAL OF HEAT TRANSFER-TRANSACTIONS OF THE ASME, 1978, 100 (03): : 448 - 452
[3] VARIABLE VISCOSITY EFFECTS ON THE VORTEX INSTABILITY OF FREE-CONVECTION BOUNDARY-LAYER FLOW OVER A HORIZONTAL SURFACE IN A POROUS-MEDIUM
JANG, JY
LEU, JS
[J]. INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 1993, 36 (05) : 1287 - 1294
[4] Jenssen O, 1963, ACTA POLYTECH SCAND, V24, P1
[5] VARIABLE VISCOSITY EFFECTS ON ONSET OF CONVECTION IN POROUS-MEDIA
KASSOY, DR
ZEBIB, A
[J]. PHYSICS OF FLUIDS, 1975, 18 (12) : 1649 - 1651
[6] LEU JS, 1993, 6TH P INT S TRANSP P, V1, P203
[7] McKibbin R., 1985, CONVECTIVE FLOWS POR, P113
[8] VARIABLE PROPERTY EFFECTS ON ONSET OF CONVECTION IN AN ELASTIC POROUS MATRIX
MORLAND, LW
ZEBIB, A
KASSOY, DR
[J]. PHYSICS OF FLUIDS, 1977, 20 (08) : 1255 - 1259
[9] Nield D, 1968, WATER RESOUR RES, V4, P553, DOI DOI 10.1029/WR004I003P00553
[10] ONSET OF CONVECTION IN A FLUID LAYER OVERLYING A LAYER OF A POROUS-MEDIUM
NIELD, DA
[J]. JOURNAL OF FLUID MECHANICS, 1977, 81 (JUL13) : 513 - 522

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