A DUAL-RECIPROCITY BOUNDARY ELEMENT METHOD FOR STEADY INFILTRATION PROBLEMS

被引：4

作者：

Solekhudin, I. ^{[1
,2
]}

Ang, K. C. ^{[1
]}

机构：

[1] Nanyang Technol Univ, Natl Inst Educ, Singapore 637616, Singapore

[2] Gadjah Mada Univ, Fac Math & Nat Sci, Dept Math, Yogyakarta 55281, Indonesia

来源：

ANZIAM JOURNAL | 2013年 / 54卷 / 03期

关键词：

Richards equation; suction potential; dual-reciprocity boundary element method; periodic identical irrigation channels; TRICKLE IRRIGATION; UNSATURATED SOIL; POND;

D O I：

10.1017/S1446181113000187

中图分类号：

O29 [应用数学];

学科分类号：

070104 ;

摘要：

Steady water infiltration in homogeneous soils is governed by the Richards equation. This equation can be studied more conveniently by transforming to a type of Helmholtz equation. In this study, a dual-reciprocity boundary element method (DRBEM) is employed to solve the Helmholtz equation numerically. Using the solutions obtained, numerical values of the suction potential are then computed. The proposed method is tested on problems involving infiltration from different types of periodic channels in a homogeneous soil. Moreover, the method is also examined using infiltration from periodic trapezoidal channels in three different types of homogeneous soil.

引用

页码：171 / 180

页数：10

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