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Liquid Helium Fluid Dynamics Studies
This program involves a range of experiments to
study the dynamics of heat and mass transfer in
liquid
helium. Most of the work is concentrated on
studies of He II, the lower temperature phase of
liquid helium. He II has exceptional heat transport
properties that provide enhanced thermal stability
to superconducting magnets and other low temperature
devices that operate in the range of 2 K.
Several of the superconducting
magnet systems at the National High Magnetic Field
Laboratory use He II as a coolant for their magnet
systems. In particular, both the 45 T hybrid magnet
and the 900 MHz wide bore NMR magnet operate below 2
K in He II reservoir cryostats.
This R&D program involves
several individual projects. These include
experiments to study:
·
Heat Transfer
to Forced Flow He II at High Velocities
·
Heat Transport by Second Sound Shock
·
Two
Phase Flow Measurement and Visualization
This program is supported by
the US Department of Energy, Division of High Energy
Physics.
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