Numerical investigations and engineering applications on freezing expansion of soil restrained two-phase closed thermosyphons

被引：26

作者：

Pan, Y ^{[1
]}

Wu, CZ

机构：

[1] E China Jiaotong Univ, Sch Civil Engn & Architecture, Nanchang 330013, Jiangxi, Peoples R China

[2] Zhejiang Univ, Energy Engn Dept, Zhejiang, Peoples R China

来源：

INTERNATIONAL JOURNAL OF THERMAL SCIENCES | 2002年 / 41卷 / 04期

关键词：

soil freezing expansion; freezing front; two-phase closed thermosyphon; coupled heat transfer; temperature field;

D O I：

10.1016/S1290-0729(02)01324-8

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

A numerical simulation has been carried out to describe the coupled heat transfer of water-saturated soil with a two-phase closed thermosyphon. This problem is characterized by the phase change occurring in the water-saturated soil, moving freezing front and heat transfer of a two-phase closed thermosyphon. According to the governing equations in the porous media and heat transfer characteristics of the two-phase closed thermosyphon, the temperature distributions in the water-saturated soil and the moving freezing front are solved numerically by the finite-difference method. The predictions of the present study are well agreed with the measured data. The mechanism of the freezing expansion restrained by the two-phase closed thermosyphon is exposed, based on which the effective radius can be determined for engineering applications. (C) 2002 Editions scientifiques et medicales Elsevier SAS. All rights reserved.

引用

页码：341 / 347

页数：7

共 11 条

[1]

BECHERMANN C, 1988, INT J HET TRANSFER, V31, P33

[2] NEW DENSITY RELATION FOR PURE AND SALINE WATER [J].

GEBHART, B ;

MOLLENDORF, JC .

DEEP-SEA RESEARCH, 1977, 24 (09) :831-848

[3]

HE JL, 1992, P 8 INT HEAT PIP C B, pB24

[4]

HE JL, 1992, P 8 INT HEAT PIP C B

[5] FINITE-DIFFERENCE SOLUTIONS OF SOLIDIFICATION PHASE-CHANGE PROBLEMS - TRANSFORMED VERSUS FIXED GRIDS [J].

LACROIX, M ;

VOLLER, VR .

NUMERICAL HEAT TRANSFER PART B-FUNDAMENTALS, 1990, 17 (01) :25-41

[6]

Patankar S.V., 1980, Numerical Heat Transfer and Fluid-Flow, DOI 10.1201/9781482234213

[7] NUMERICAL STUDY ON FREEZING HEAT-TRANSFER IN WATER-SATURATED POROUS-MEDIA [J].

SASAKI, A ;

AIBA, S ;

FUKUSAKO, S .

NUMERICAL HEAT TRANSFER PART A-APPLICATIONS, 1990, 18 (01) :17-32

[8]

SASAKI A, 1989, P 2 INT S COLD REG H, P291

[9]

Shiraishi M., 1982, ADV HEAT TRANSFER, P95

[10]

Wu C.Z., 1989, P 2 INT S COLD REG H, P183

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