Summary:
- Very High Reynolds ( up to 2 10 7 so far) He flow production
- High flexibility of flow conditions, due to the large variation of helium properties over the temperature range available (2.2 K to 5 K)
- Both superfluid and normal grid turbulence measurements possible in the same experiment, with adjustable fraction of the superfluid component (from 1.6 to 2.2 K)
- Micron- and sub-micron size hotwire anemometer, second sound probes for superfluid turbulence measurement, miniature pressure sensor.
- Two complementary facilities working with both normal and superfluid helium, one offering high flexibility, the other unsurpassed performance in terms of helium mass flow rate.
EuTuCHe@CEA makes particularly use of the phase transition experienced by Helium at 2.2 K, thus allowing to make experiments at very High Reynolds values with normal (above 2.2 K) and superfluid helium (below 2.2 K). The TSF facility is shown in the above picture.