Abstract
A hot wire anemometer using superconducting thin films has been developed for measurements in a gaseous 4He turbulent round jet around 4 K. Localized velocity fluctuations, down to a few microns, and high frequency events, up to 1 MHz can be detected giving access to the study of turbulent subsonic flow with Reynolds numbers ranging up to 10 6. First data analysis featuring the energy cascade in this “ideal” system are also discussed.
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