Original scientific paper

Nonlinear macromodel based on Krylov subspace for micromixer of the microfluidic chip

Xueye Chen ; Faculty of Mechanical Engineering and Automation, Liaoning University of Technology, Jinzhou 121001, CHINA
Hongxiang Wang ; Faculty of Mechanical Engineering and Automation, Liaoning University of Technology, Jinzhou 121001, CHINA
Jingliang Li ; The Key Laboratory for Micro/Nano Technology and System of Liaoning Province, Dalian University of Technology, Dalian 116024, CHINA

Abstract

The simulation of MEMS (Micro-Electro-Mechanical-System) containing fluid field could not be well performed by conventional numerical analysis methods. The micro flow field characteristics can be simulated by using macromodel including a nonlinear analysis. This paper set up the macromodel of the micromixer of the microfluidic chip using Krylov subspace projection method. The system functions were assembled through finite element analysis using COMSOL. We took the flow field-concentration field analysis for micromixer finite element model. The finite element functions order is reduced by second-order Krylov subspace projection method based on Lanczos algorithm. It can be shown that the simulation results obtained by using the macromodel are highly consistent with the results of finite element analysis. The calculation using the macromodel is two orders of magnitude faster than the calculation performed by the finite element analysis method. This macromodel should facilitate the design of microfluidic devices with sophisticated channel networks.

Keywords

macromodel; Krylov subspace; micromixer; MEMS

Hrčak ID:

184962

URI

https://hrcak.srce.hr/184962

Publication date:

18.7.2013.

Visits: 670 *