0
research-article

Lattice Boltzmann simulation of mass transfer coefficients for chemically reactive flows in porous media

[+] Author and Article Information
Ao Xu

HKUST Energy Institute, Department of Mechanical and Aerospace Engineering, The Hong Kong University of Science and Technology, Hong Kong, China
xuaoxiqi@gmail.com

Prof. Tim S. Zhao

Fellow of ASME, HKUST Energy Institute, Department of Mechanical and Aerospace Engineering, The Hong Kong University of Science and Technology, Hong Kong, China
metzhao@ust.hk

Le Shi

HKUST Energy Institute, Department of Mechanical and Aerospace Engineering, The Hong Kong University of Science and Technology, Hong Kong, China
lshiaa@connect.ust.hk

Jianbo Xu

HKUST Energy Institute, Department of Mechanical and Aerospace Engineering, The Hong Kong University of Science and Technology, Hong Kong, China
mejianbo@ust.hk

1Corresponding author.

ASME doi:10.1115/1.4038555 History: Received December 23, 2016; Revised October 17, 2017

Abstract

We present lattice Boltzmann simulations of the mass transfer coefficient from the bulk flow to pore surfaces for chemically reactive flows in both ordered and disordered porous structures. The ordered porous structure under consideration consists of cylinders in a staggered arrangement and in a line arrangement, while the disordered one is composed of randomly placed cylinders. Results show the ordered porous structure of staggered cylinders exhibits a larger mass transfer coefficient than ordered porous structure of inline cylinders does. It is also found that in the disordered porous structures, the Sherwood number increases linearly with Reynolds number at the creeping flow regime; the Sh and Re exhibit a one-half power law dependence at the inertial flow regime. Meanwhile, for Schmidt number (Sc) between 1 and 10, the Sh is proportional to Sc^0.8; for Sc between 10 and 100, the Sh is proportional to Sc^0.3.

Copyright (c) 2017 by ASME
Your Session has timed out. Please sign back in to continue.

References

Figures

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In