Liquid microjets are inherently unstable and can be
broken into droplets by various means including
modulation of pressure, velocity, and/or fluid properties. In
this presentation, we discuss the controlled breakup of
viscous microjets via thermal modulation of surface
tension. Such modulation has been implemented using
CMOS/MEMS technology by integrating resistive heating
elements around each orifice of a manifold as depicted in
Fig. 1. When the heating elements are electrically pulsed,
the thermal energy they produce penetrates the surface of
the microjet, and is carried downstream to produce a spatial
variation of surface tension along the length of the jet,
which ultimately causes breakup and drop formation (Figs.
1 and 2). Using this process, microfluidic devices have been
fabricated with thousands of individually modulated
microjets that can produce steady steams of picoliter-sized
droplets at kilohertz frequency rates 1. In this presentation
we review methods for analyzing such devices.
%0 Conference Paper
%1 citeulike:3079182
%A Furlani, E. P.
%B Nanotech 2005
%D 2005
%K 80a20-heat-and-mass-transfer 76b45-capillarity 76b10-jets-and-cavities 76e17-interfacial-stability
%T Thermal Modulation and Instability of Newtonian Liquid Microjets
%X Liquid microjets are inherently unstable and can be
broken into droplets by various means including
modulation of pressure, velocity, and/or fluid properties. In
this presentation, we discuss the controlled breakup of
viscous microjets via thermal modulation of surface
tension. Such modulation has been implemented using
CMOS/MEMS technology by integrating resistive heating
elements around each orifice of a manifold as depicted in
Fig. 1. When the heating elements are electrically pulsed,
the thermal energy they produce penetrates the surface of
the microjet, and is carried downstream to produce a spatial
variation of surface tension along the length of the jet,
which ultimately causes breakup and drop formation (Figs.
1 and 2). Using this process, microfluidic devices have been
fabricated with thousands of individually modulated
microjets that can produce steady steams of picoliter-sized
droplets at kilohertz frequency rates 1. In this presentation
we review methods for analyzing such devices.
@inproceedings{citeulike:3079182,
abstract = {{Liquid microjets are inherently unstable and can be
broken into droplets by various means including
modulation of pressure, velocity, and/or fluid properties. In
this presentation, we discuss the controlled breakup of
viscous microjets via thermal modulation of surface
tension. Such modulation has been implemented using
CMOS/MEMS technology by integrating resistive heating
elements around each orifice of a manifold as depicted in
Fig. 1. When the heating elements are electrically pulsed,
the thermal energy they produce penetrates the surface of
the microjet, and is carried downstream to produce a spatial
variation of surface tension along the length of the jet,
which ultimately causes breakup and drop formation (Figs.
1 and 2). Using this process, microfluidic devices have been
fabricated with thousands of individually modulated
microjets that can produce steady steams of picoliter-sized
droplets at kilohertz frequency rates [1]. In this presentation
we review methods for analyzing such devices.}},
added-at = {2017-06-29T07:13:07.000+0200},
author = {Furlani, E. P.},
biburl = {https://www.bibsonomy.org/bibtex/280484938d34ea5757d80e772c034fbc0/gdmcbain},
booktitle = {Nanotech 2005},
citeulike-article-id = {3079182},
citeulike-attachment-1 = {furlani_05_thermal_33795.pdf; /pdf/user/gdmcbain/article/3079182/33795/furlani_05_thermal_33795.pdf; f39917c1706e2f65ab06b67d50931eb70e8948d4},
comment = {(private-note)Preprint sent me by SGM 2008-08-04.},
file = {furlani_05_thermal_33795.pdf},
howpublished = {Paper no. 5-05},
interhash = {bdb1fa6b23cbc1ae6d82d286fb8c3961},
intrahash = {80484938d34ea5757d80e772c034fbc0},
keywords = {80a20-heat-and-mass-transfer 76b45-capillarity 76b10-jets-and-cavities 76e17-interfacial-stability},
location = {Anaheim, California, 8-12 May 2005},
posted-at = {2008-08-04 01:07:04},
priority = {2},
timestamp = {2019-04-02T01:44:58.000+0200},
title = {Thermal Modulation and Instability of {N}ewtonian Liquid Microjets},
year = 2005
}