An analytical solution to one-dimensional thermal conduction-convection in soil

被引：132

作者：

Gao, ZQ ^{[1
]}

Fan, XG

Bian, LG

机构：

[1] Chinese Acad Meteorol Sci, Beijing, Peoples R China

[2] USN, Postgrad Sch, Dept Meteorol, Monterey, CA 93943 USA

[3] Univ Alaska Fairbanks, Inst Geophys, Fairbanks, AK 99775 USA

来源：

SOIL SCIENCE | 2003年 / 168卷 / 02期

关键词：

analytical solution; soil; thermal conduction; thermal convection;

D O I：

10.1097/00010694-200302000-00004

中图分类号：

S15 [土壤学];

学科分类号：

0903 ; 090301 ;

摘要：

The equation of one-dimensional thermal conduction and convection in soil is solved analytically by applying the traditional harmonic method (HM) and the Laplace transform method (LTM). A simple method to determine accurate values of soil heat diffusivity and liquid water flux density is given. Using this method, we determined the soil thermal diffusivity, k = 0.85 X 10(-6) m(2) s(-1), and liquid water flux density, W = 4.3 X 10(-6) m(3) s(-1) m(-2), for the Naqu site in the summer of 1998. An experimental evaluation of the proposed methods is also given.

引用

页码：99 / 107

页数：9

共 21 条

[1] ESTIMATING THERMAL-DIFFUSIVITY NEAR THE SOIL SURFACE USING LAPLACE TRANSFORM - UNIFORM INITIAL CONDITIONS [J].