Coupled Surface-Subsurface Flow Modelling Using the GeRa Software

被引：3

作者：

Novikov, K. ^{[1
]}

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

机构：

[1] Russian Acad Sci, Marchuk Inst Numer Math, Moscow 119333, Russia

[2] Russian Acad Sci, Nucl Safety Inst, Moscow 115191, Russia

来源：

LOBACHEVSKII JOURNAL OF MATHEMATICS | 2020年 / 41卷 / 04期

关键词：

surface runoff; groundwater; surface-subsurface interaction; numerical simulation; 1ST-ORDER EXCHANGE COEFFICIENT; HYDRAULIC CONDUCTIVITY; OVERLAND-FLOW; WATER; HYDROLOGY; EQUATION; ENERGY; GEOTOP;

D O I：

10.1134/S1995080220040162

中图分类号：

O1 [数学];

学科分类号：

0701 ; 070101 ;

摘要：

Mathematical model and numerical methods for the solution of coupled surface-subsurface flow in GeRa software is presented. Coupling of surface runoff and subsurface flow models is accomplished using first-order exchange term. The arising nonlinear solver convergence issues are addressed in the article. In order to overcome these issues, approaches for handling the surface-subsurface flux expression are introduced. The proposed numerical model is verified and validated using benchmarks with reference solutions obtained in different codes as well as experimental results.

引用

页码：538 / 551

页数：14

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