A study of the drag on the prongs of a number of quartz forks vibrating in the superfluid and normal phases of 4He is reported, and particular attention is paid to the transitions from laminar to turbulent flow over a wide range of temperature.
A study of the drag on the prongs of a number of quartz forks vibrating in the superfluid and normal phases of 4He is reported, and particular attention is paid to the transitions from laminar to turbulent flow over a wide range of temperature. (en)