PSU Mark
Eberly College of Science Mathematics Department

Meeting Details

For more information about this meeting, contact Andrew Belmonte, Mari Royer, Hope Shaffer.

Title:Interfacial instabilities of reactive micellar fluids
Seminar:The Pritchard Lab Seminar
Speaker:Andrew Belmonte, Dept of Mathematics, Penn State University
Abstract:
Many fluid instabilities involving free surfaces are governed by interfacial forces - the classic example being surface tension. However, complex fluids often have other surface forces due to physical processes not present in the bulk. A striking example of this has been observed for viscoelastic micellar fluids, in which long tubelike aggregates form at low concentrations due to the presence of an organic salt/cosurfactant, without which the micelles are spherical and the fluid is completely Newtonian. I will present some recent experimental observations and modeling of instabilities occurring when two such Newtonian fluids react at their interface to produce a fragile elastic micellar material, including droplet splashes, sedimentation, and Hele-Shaw fingering.

Room Reservation Information

Room Number:MB216
Date:10 / 05 / 2009
Time:02:30pm - 03:30pm