Pressure drop and temperature rise in He II flow in round tubes, Venturi flowmeters and valvesPressure drops in highly turbulent He II flow were measured in round tubes, valves, and Venturi flowmeters. Results are in good agreement with single-phase flow correlations for classical fluids. The temperature rise in flow in a round tube was measured, and found to agree well with predictions for isenthalpic expansion. Cavitation was observed in the venturis under conditions of low back pressure and high flow rate. Metastable superheating of the helium at the venturi throat was observed before the helium made a transition to saturation pressure.
Document ID
19880065962
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Walstrom, P. L. (Wisconsin Univ. Madison, WI, United States)
Maddocks, J. R. (Wisconsin, University Madison, United States)