For more information about this meeting, contact Andrew Belmonte, Mari Royer, Hope Shaffer.
| Title: | Interfacial instabilities of reactive micellar fluids |
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| Seminar: | The Pritchard Lab Seminar |
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| Speaker: | Andrew Belmonte, Dept of Mathematics, Penn State University |
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| Abstract: |
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| 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 |
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| Date: | 10 / 05 / 2009 |
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| Time: | 02:30pm - 03:30pm |
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