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Lookup NU author(s): Simon Godfrey, Dr David Samuels, Professor Carlo Barenghi
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Boundary layer flows are of critical importance to the motion and physics of a fluid flow. In superfluid helium II, the problem of boundary layer flow highlights a significant difference between the two fluid components that make up the current model of helium II: the difference in the boundary conditions. This two fluid model also has a fundamental effect on the stability of the flow, as one must consider the stability of both of the two fluid components. We describe superfluid vortex structures which remain stable in a laminar boundary layer, and discuss their effect on the boundary layer. We also calculate the stability characteristics of the plane Poiseuille flow of helium II, and have discovered a new unstable mode caused by mutual friction, that can dominate the stability characteristics of the flow.
Author(s): Godfrey SP, Samuels DC, Barenghi CF
Publication type: Conference Proceedings (inc. Abstract)
Publication status: Published
Conference Name: Conference on Quantized Vortex Dynamics and Superfluid Turbulence
Year of Conference: 2001
Pages: 184-190
ISSN: 0075-8450
Publisher: Springer
Library holdings: Search Newcastle University Library for this item
Series Title: Lecture Notes in Physics
ISBN: 3540422269
