Simulation of water flow and heat transfer in soils by means of a mixed finite element method

被引：19

作者：

Chounet, LM

Hilhorst, D

Jouron, C

Kelanemer, Y

Nicolas, P

机构：

[1] Univ Paris 11, Anal Numer & EDP, CNRS, URA 760, F-91405 Orsay, France

[2] Univ Paris 12, RAMSES Grp, LETIEF, IUT, F-94010 Creteil, France

[3] Univ Paris 13, F-93206 St Denis, France

[4] Pole Univ Leonard de Vinci, F-92916 Paris La Defense, France

来源：

ADVANCES IN WATER RESOURCES | 1999年 / 22卷 / 05期

关键词：

heat and mass transfer; mixed finite element method; modified method of characteristics;

D O I：

10.1016/S0309-1708(98)00029-3

中图分类号：

TV21 [水资源调查与水利规划];

学科分类号：

081501 ;

摘要：

We develop numerical methods for the simulation of heat and mass transfer in the ground. We use the mixed finite element method for the computation of both the liquid pressure and the temperature, so that the mass is locally and globally well conserved and the computation of the fluid velocity is very accurate. This is quite important since this fluid velocity appears in the first-order term of the equation for the temperature; in turn the partially hyperbolic character of the equation for the temperature is well taken into account since we use the modified method of characteristics for its discretization. (C) 1999 Elsevier Science Ltd. All rights reserved.

引用

页码：445 / 460

页数：16

共 19 条

[1] NUMERICAL-METHODS FOR THE SIMULATION OF FLOW IN ROOT-SOIL SYSTEMS [J].