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Chemical efficiency of reactive microflowswith heterogeneous catalysis: a lattice Boltzmann study

Published online by Cambridge University Press:  15 October 2001

S. Succi ,
A. Gabrielli ,
G. Smith  and
E. Kaxiras
S. Succi
Affiliation:
Istituto di Applicazioni Calcolo, CNR, viale Policlinico 137, 00161 - Roma, Italy Visiting Scholar, Lyman Laboratory, Department of Physics, Harvard University, Cambridge MA 02138, USA
A. Gabrielli*
Affiliation:
INFM, Dipartimento di Fisica, Università di Roma “La Sapienza”, P.le A. Moro 2, 00185 - Roma, Italy
G. Smith
Affiliation:
Lyman Laboratory, Department of Physics, Harvard University, Cambridge MA 02138, USA
E. Kaxiras
Affiliation:
Lyman Laboratory, Department of Physics, Harvard University, Cambridge MA 02138, USA
*
andrea@pil.phys.uniroma1.it
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Abstract

We investigate the effects of geometrical micro-irregularities on the conversion efficiency of reactive flows in narrow channels of millimetric size. Three-dimensional simulations, based upon a Lattice-Boltzmann-Lax-Wendroff code, indicate that periodic micro-barriers may have an appreciable effect on the effective reaction efficiency of the device. Once extrapolated to macroscopic scales, these effects can result in a sizeable increase of the overall reaction efficiency.

Keywords

Type
Research Article
Information
The European Physical Journal - Applied Physics , Volume 16 , Issue 1 , October 2001 , pp. 71 - 84
Copyright
© EDP Sciences, 2001

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