Modeling of contactless bubble–bubble interactions in microchannels with integrated inertial pumps

In this study, the nonlinear effect of contactless bubble–bubble interactions in inertial micropumps is characterized via reduced parameter one-dimensional and three-dimensional computational fluid dynamics (3D CFD) modeling. A one-dimensional pump model is developed to account for contactless bubbl...

Full description

Saved in:
Bibliographic Details
Published in:Physics of fluids (1994) 2021-04, Vol.33 (4)
Main Authors: Hayes, B., Whiting, G. L., MacCurdy, R.
Format: Article
Language:English
Subjects:
Accuracy
Burning time
Computational fluid dynamics
Design modifications
Fluid dynamics
Mathematical models
Microchannels
Microfluidics
Micropumps
Model accuracy
One dimensional models
Physics
Reservoirs
Resistors
Three dimensional flow
Three dimensional models
Time lag
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:In this study, the nonlinear effect of contactless bubble–bubble interactions in inertial micropumps is characterized via reduced parameter one-dimensional and three-dimensional computational fluid dynamics (3D CFD) modeling. A one-dimensional pump model is developed to account for contactless bubble-bubble interactions, and the accuracy of the developed one-dimensional model is assessed via the commercial volume of fluid CFD software, FLOW-3D. The FLOW-3D CFD model is validated against experimental bubble dynamics images as well as experimental pump data. Precollapse and postcollapse bubble and flow dynamics for two resistors in a channel have been successfully explained by the modified one-dimensional model. The net pumping effect design space is characterized as a function of resistor placement and firing time delay. The one-dimensional model accurately predicts cumulative flow for simultaneous resistor firing with inner-channel resistor placements (0.2L < x 
ISSN:1070-6631
1089-7666
DOI:10.1063/5.0041924