MICROFLUIDIC SYSTEM SIMULATION INCLUDING THE ELECTRO-VISCOUS EFFECT
This paper describes a practical approach using a general purpose lumped-parameter computer program, GFSSP (Generalized Fluid System Simulation Program) for calculating flow distribution in a network of micro-channels including electro-viscous effects due to the existence of electrical double layer (EDL). In this study, an empirical formulation for calculating an effective viscosity of ionic solutions based on dimensional analysis is described to account for surface charge and bulk fluid conductivity, which give rise to electro-viscous effect in microfluidics network. Two dimensional slit micro flow data was used to determine the model coefficients. Geometry effect is then included through a Poiseuille number correlation in GFSSP. The bi-power model was used to calculate flow distribution of isotropically etched straight channel and T-junction microflows involving ionic solutions. Performance of the proposed model is assessed against experimental test data.
Eileen Rojas C. P. Chen Alok Majumdar
University of Alabama in Huntsville Huntsville, AL 35899 NASA/Marshall Space Flight Center MSFC, AL 35812
国际会议
海南三亚
英文
2007-01-10（万方平台首次上网日期，不代表论文的发表时间）