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
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
收藏
页码:99 / 107
页数:9
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