Research Article | OPEN ACCESS
Research of Micro-Rectangular-Channel Flow Based on Lattice Boltzmann Method
Xiao Hong, Wu Di and Shang Yuhe
School of Power and Energy, Northwestern Polytechnical University, Xi
Research Journal of Applied Sciences, Engineering and Technology 2013 14:2520-2525
Received: November 08, 2012 | Accepted: December 28, 2012 | Published: August 10, 2013
Abstract
The source codes of Lattice Boltzmann Method (LBM) based on the D3Q15 model were developed in the current study. In the simulation process, the pressure boundary conditions were developed and the rectangular micro-channel flow was investigated. The Width-to-Height ratio (W/H) is the main influencing parameter of the rectangular micro-channel flow in low Reynolds number condition. A smaller W/H of the rectangular micro-channel results in a greater difference of drag coefficient between LBM simulation data and empirical formula data. On the empirical data of drag coefficient approximating laminar flow, when the Reynolds number is more than 10, the drag coefficients of LBM simulation and empirical data of laminar flow are in substantial agreement. Thus, in more than 10 conditions of Reynolds number, the empirical data on laminar flow can be used in rectangular micro-channel flow.
Keywords:
D3Q15, drag coefficient, lattice boltzmann method, rectangular micro-channel flow,
Competing interests
The authors have no competing interests.
Open Access Policy
This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
Copyright
The authors have no competing interests.
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ISSN (Online): 2040-7467
ISSN (Print): 2040-7459 |
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