A critical evaluation of Navier-Stokes, boundary-layer, and plug-flow models of the flow and chemistry in a catalytic-combustion monolith

被引：175

作者：

Raja, LL ^{[1
]}

Kee, RJ

Deutschmann, O

Warnatz, J

Schmidt, LD

机构：

[1] Colorado Sch Mines, Div Engn, Golden, CO 80401 USA

[2] Univ Heidelberg, Interdisziplinaeres Zentrum Wissensch Rechnen, D-69120 Heidelberg, Germany

[3] Univ Minnesota, Dept Chem Engn & Mat Sci, Minneapolis, MN 55455 USA

来源：

CATALYSIS TODAY | 2000年 / 59卷 / 1-2期

基金：

美国国家航空航天局;

关键词：

catalytic combustion; honeycomb monolith; numerical modeling; Navier-Stokes; boundary layer; plug flow;

D O I：

10.1016/S0920-5861(00)00271-6

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

The objective of this paper is to evaluate three alternative formulations for simulating the steady-state flow and chemistry in a honeycomb channel for conditions that are typical of the catalytic combustion of natural gas. In developing simulation capabilities, it is important to understand the physical and computational accuracy that a model can deliver and the computational resources required to do so. Direct comparison of the solutions, using three different model formulations, reveal the range of validity of the various approximations. Computation times range from hours for the Navier-Stokes formulation to seconds for the plug-flow models. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：47 / 60

页数：14

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