WELCOME to the Fluids, Interfaces & Transport (FIT) Laboratory!
Principal Investigator
Jie Feng
PhD, Princeton University
We study micro-scale transport phenomena of structurally complex fluids and interfaces, to derive new insights in physico-chemical mechanisms and continuum-scale mechanics of multi-phase soft matter systems, as well as for their applications to solving some of most challenging problems in energy, environment and human health, such as pollutant and disease control, oil recovery, drug delivery and nanomedicines.
We actively tackle problems and explore new research directions by using microscopy, microfluidics, high-speed imaging and image analysis, materials processing and characterization. We also complement our experiments with theoretical modeling and numerical simulations, using ideas from fluid dynamics, polymer physics, colloidal science and biophysics. Our work is thus highly multi-disciplinary, combining expertise from engineering, physics, chemistry, materials science and biology. Our ultimate goal is to bridge fundamental research with meaningful and positive societal impacts.
We enjoy new challenges and collaborations. Feel free to visit us, either in person or on the web.
Selected Publications
OutREACH
We are committed to STEM outreach. The recent activities include Worldwide Youth in Science and Engineering and Creative Science Camp of the Orpheum Children’s Science Museum. Contact Us…
Acknowledgement of Support
News
Happy to share our recent publication in @PhysRevLett. We document that when a bubble bursts at a protein-laden surface, a secondary bubble is entrapped with no subsequent jet drop ejection, contrary to the counterpart observed at a Newtonian surface.
Thanks for citing our work on bubble bursting!
Cannot thank Howard enough for his guidance, support and encouragement throughout my research journey
PRFluids Editors' Suggestion: A glass of fizzy drink is a complex laboratory for two-phase flows. In your next glass, watch for those tiny rising bubbles. Here, @ZenitLab and Co. show why champagne has stable “bubble chains” but other bubbly drinks do not. https://go.aps.org/3LTysL6
Many thanks for covering our research on bubble bursting! @uofigrainger
Even the simplest physical processes are more than meets the eye. For example, flow through arrays of soft hairs turns out to be a more intricate process than we thought, shown elegantly by Ushay et al. at @LiquidsLab.
https://go.aps.org/3nTVtUF. #FluidDynamics #Elastocapillarity
Research briefing: A method to make inorganic membranes on the surface of aqueous solutions https://go.nature.com/40RspeB
Conventional soap bubbles don't last long, in part because gravity induces liquid drainage, leading to instability.
When sound waves counteract the effects of gravity, bubbles can be kept intact for hours.
Read the article: http://ow.ly/2iOI50Nwrak
Tiny yet hazardous: New study shows aerosols produced by contaminated bubble bursting are far smaller than predicted @uofigrainger @NaturePhysics https://phys.org/news/2023-03-tiny-hazardous-aerosols-contaminated-smaller.html
PRFluids Editors' Suggestion: Thickness profiles of giant soap films
Marina Pasquet, et al
https://go.aps.org/3z5y70l
#FluidDynamics
An experiment generates soap films up to 2 meters high at 1 m/s speeds and finds an exponential thickness profile in the central part of the film