A two-dimensional heat transfer model for thermal barrier coating average thermal conductivity computation

被引：31

作者：

Bolot, R ^{[1
]}

Anton, G ^{[1
]}

Montavon, G ^{[1
]}

Coddet, C ^{[1
]}

机构：

[1] Univ Technol Belfort Montbeliard, LERMPS, F-90010 Belfort, France

来源：

NUMERICAL HEAT TRANSFER PART A-APPLICATIONS | 2005年 / 47卷 / 09期

关键词：

D O I：

10.1080/10407780590921953

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The present article is devoted to quantifying the contribution of pores and cracks in the decrease of the effective thermal conductivity of thermal barrier coatings (TBCs). A finite-difference-based model is used for the computation of heat transfer through a porous structure. Each pixel of a binary picture describing the pore network is interpreted as a cell of integration of the heat conduction equation. A thermal gradient is applied and a large system of linear equations is subsequently derived. Since it has a strong influence on the required CPU time, particular attention is given to the solving procedure.

引用

页码：875 / 898

页数：24

共 35 条

[1] ANDERSON DA, 1984, COMPUTATIONAL FLUID, P132
[2] [Anonymous], NUMERICAL HEAT TRANS
[3] ANTOU G, 2004, INT THERM SPRAY C OS
[4] Using the finite element method to compute the influence of complex porosity and inclusion structures on the thermal and electrical conductivity
Bakker, K
[J]. INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 1997, 40 (15) : 3503 - 3511
[5] DORVAUX JM, 1997, P 85 AGARD SMP M THE
[6] Effect of heat treatment on the thermal conductivity of plasma-sprayed thermal barrier coatings
Dutton, R
Wheeler, R
Ravichandran, KS
An, K
[J]. JOURNAL OF THERMAL SPRAY TECHNOLOGY, 2000, 9 (02) : 204 - 209
[7] ENGELNMULLGES G, 1996, NUMERICAL ALGORITHMS
[8] Qualitative analysis of matrix splitting methods
Faragó, I
Tarvainen, P
[J]. COMPUTERS & MATHEMATICS WITH APPLICATIONS, 2001, 42 (8-9) : 1055 - 1067
[9] Forsythe G.E., 1960, FINITE DIFFERENCE ME
[10] GOLOSNOY IO, IN PRESS J THERMAL S

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