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History Dependence of Turbulence Generated by a Vibrating Wire in Superfluid (4)He at 1.5 K

Research output: Contribution to journalJournal article

Published

Journal publication date02/2011
JournalJournal of Low Temperature Physics
Journal number3-4
Volume162
Number of pages0
Pages375-382
Original languageEnglish

Abstract

We report on the onset of turbulence in normal and superfluid (4)He using several 13.5 mu m diameter vibrating wire resonators placed in a cell, filtered from the surrounding helium bath. We measured the force-velocity characteristics of the wires in normal and superfluid helium over a velocity range up to several meters per second. The transition from laminar to turbulent behavior can be clearly identified. Surprisingly we find that, depending on the cooling history, turbulence in the superfluid does not always develop fully.