On the role of tracking on Eulerian-Lagrangian solutions of the transport equation

被引：34

作者：

Oliveira, A

Baptista, AM

机构：

[1] Oregon Grad Inst Sci & Technol, Ctr Coastal & Land Margin Res, Portland, OR 97291 USA

[2] Oregon Grad Inst Sci & Technol, Dept Environm Sci & Engn, Portland, OR 97291 USA

来源：

ADVANCES IN WATER RESOURCES | 1998年 / 21卷 / 07期

基金：

美国国家科学基金会;

关键词：

transport equation; Eulerian-Lagrangian methods; tracking methods; mass conservation; numerical experimentation; accuracy analysis; stability analysis;

D O I：

10.1016/S0309-1708(97)00022-5

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 investigate the effect of tracking errors on the accuracy and stability of Eulerian-Lagrangian methods (ELMS) for the solution of the transport equation. A combination of formal analysis and numerical experimentation demonstrates that the effect is severe. Even moderate tracking errors substantially affect the preservation of the zeroth, first and second moments of concentration (mass, phase and diffusion) and may lead to the instability of otherwise stable and very accurate ELMs. The use of accurate tracking algorithms is strongly recommended for Eulerian-Lagrangian simulations involving complex flows. (C) 1998 Elsevier Science Limited. All rights reserved.

引用

页码：539 / 554

页数：16

共 38 条

[1] SOLUTE TRANSPORT VIA ALTERNATING-DIRECTION COLLOCATION USING THE MODIFIED METHOD OF CHARACTERISTICS [J].