Vortex Dissipation in Superfluid Third Sound Flows
Document
This thesis probes possible mechanisms behind anomalous freedecays commonly observed in superfluid helium third sound flows. Several models, based on vortex dissipation, for the additional dissipation these anomalous freedecays imply are constructed, tested, and modified to be consistent with the observed characteristics. This work concludes that these simple models involving only vortex friction and a creation energy are insufficient to explain the observed characteristics. From this conclusion a model is proposed that holds promise for future study.
Item Description
Name(s)
Author: Swaminathan, Anand
Thesis advisor: Ellis, Fred
Date
April 15, 2009
Extent
65 pages
Language
eng
Genre
Physical Form
electronic
Discipline
Rights and Use
In Copyright – Non-Commercial Use Permitted
Digital Collection
PID
ir:1619