Steady-State Vortex-Line Density in Turbulent He II Counterflow
- 16 October 1978
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 41 (16), 1123-1126
- https://doi.org/10.1103/physrevlett.41.1123
Abstract
We have measured the steady-state vortex-line density in turbulent counterflow using a second-sound-burst technique as a local probe. Contrary to the Vinen theory and previous assumptions, we find substantial line-density inhomogeneity and strong departures from the predicted heat-current dependence. Anomalous behavior of the line density at higher heat currents provides evidence for a new secondary flow state.Keywords
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