Publication:
A computational study of drop formation in an axisymmetric flow-focusing device

Placeholder

Organizational Units

Program

School / College / Institute

College of Engineering

KU Authors

Co-Authors

Publication Date

Language

Embargo Status

Journal Title

Journal ISSN

Volume Title

Alternative Title

Abstract

We investigate the formation and dynamics of drops computationally in an axisymetric geometry using a Front-Tracking/Finite-Difference (FT/FD) method. The effects of viscosity ratio between inner and outer liquids on the drop creation process and drop size distribution are examined. It is found that the viscosity ratio critically influences the drop formation process and the final drop distribution. We found that, for small viscosity ratios, i.e., 0.1 < lambda < 0.5 drop size is about the size of the orifice and drop distribution is highly monodisperse. When viscosity ratio is increased, i.e., 0.5 < lambda < I a smaller drop is created just after the main drop. For even higher viscosity ratios, the drop distribution is usually monodisperse but a satellite drop is created in some cases. The effect of the flow rates in the inner jet and the co flowing annulus are also studied. It is found that the drop size gets smaller as Q(in) / Q(out) is reduced while keeping the outer flow rate constant.

Source

Publisher

Amer Soc Mechanical Engineers

Subject

Engineering, Biomedical engineering, Engineering, Mechanical engineering, Nanoscience, Nanotechnology, Optics

Citation

Has Part

Source

Proceedings of the 4th International Conference on Nanochannels, Microchannnels, and Minichannels, Pts A And B

Book Series Title

Edition

DOI

N/A

item.page.datauri

Link

Rights

Rights URL (CC Link)

Copyrights Note

Endorsement

Review

Supplemented By

Referenced By

1

Views

0

Downloads

View PlumX Details