Campuses:

Diffusion

Wednesday, May 30, 2018 - 9:00am - 9:50am
Alla Borisyuk (The University of Utah)
Astrocytes are brain cells, as numerous as neurons, but are physiologically quite different. Astrocytes play an important role in neuronal function through their calcium signaling. In our collaborators' experimental data we see a large degree of variability in the calcium signals. In this project we will explore two major causes of this variability.
Tuesday, March 27, 2018 - 11:30am - 12:00pm
Vladimir Ajaev (Southern Methodist University)
Studies of sessile droplets provide a natural framework for modeling dynamic contact lines. We present several recent results on droplet behavior on heated substrates under the conditions when the effects of both wetting and evaporation are important. For liquids which are aqueous solutions, we investigate how the formation of electrical double layers near the interfaces affects droplet spreading and evaporation. Apparent contact angle is found as a function of both heating and ion concentration in the liquid.
Thursday, October 15, 2009 - 2:15pm - 2:55pm
James Feng (University of British Columbia)
I will discuss the use of a diffuse-interface model for simulating moving contact lines. The Cahn-Hilliard diffusion is known to regularize the singularity and makes possible a continuum-level computation. But relating the results to physical reality is subtle. I will show numerical results that suggest a well-defined sharp-interface limit, with a finite contact line speed that can be related to measurements.
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