Boundary layer separation and vortex creation in superflow through small orifices
Journal Article
·
· Journal of Low Temperature Physics
- Univ. of Illinois at Urbana-Champaign, Urbana, IL (United States)
- Institute of Physics, Bhubaneswar (India)
The authors report numerical solutions of the Gross-Pitaevskii equation for two dimensional flow is a superfluid condensate through a small orifice. When the superfluid velocity in the center of the orifice exceeds about 60% of the speed of sound, the flow in the throat of the orifice becomes unstable to a form of boundary layer separation. Low condensate-density regions bulge away from the walls and form the cores of singly quantized vortices. These detach from the boundary and are convected downstream.
- OSTI ID:
- 272750
- Journal Information:
- Journal of Low Temperature Physics, Journal Name: Journal of Low Temperature Physics Journal Issue: 5-6 Vol. 102; ISSN JLTPAC; ISSN 0022-2291
- Country of Publication:
- United States
- Language:
- English
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