614 citations · 1.8k across the 62 of their papers we have counts for
8 papers · 1 filter
An electro-hydrodynamics modeling of droplet actuation on solid surface by surfactant-mediated electro-dewetting
Weiqi Chu, Hangjie Ji, Qining Wang +2
We propose an electro-hydrodynamics model to describe the dynamic evolution of a slender drop containing a dilute ionic surfactant on a naturally wettable surface, with a varying e…
Dynamics of small particle inertial migration in curved square ducts
Kyung Ha, Brendan Harding, Andrea L. Bertozzi +1
Microchannels are well-known in microfluidic applications for the control and separation of microdroplets and cells. Often the objects in the flow experience inertial effects, resu…
Modeling film flows down a fibre influenced by nozzle geometry
Hangjie Ji, Abolfazl Sadeghpour, Y. Sungtaek Ju +1
We study the effects of nozzle geometry on the dynamics of thin fluid films flowing down a vertical cylindrical fibre. Recent experiments show that varying the nozzle diameter can…
A theory for undercompressive shocks in tears of wine
Yonatan Dukler, Hangjie Ji, Claudia Falcon +1
We revisit the tears of wine problem for thin films in water-ethanol mixtures and present a new model for the climbing dynamics. The new formulation includes a Marangoni stress bal…
Effect of inertial lift on a spherical particle suspended in flow through a curved duct
B. Harding, Y. M. Stokes, A. L. Bertozzi
We develop a model of the forces on a spherical particle suspended in flow through a curved duct under the assumption that the particle Reynolds number is small. This extends an as…
Dynamics of thin liquid films on vertical cylindrical fibers
H. Ji, C. Falcon, A. Sadeghpour +3
Recent experiments of thin films flowing down a vertical fiber with varying nozzle diameters present a wealth of new dynamics that illustrate the need for more advanced theory. We…