Abstract
Pressure and temperature profiles for He ll flow in the transfer line for the Superfluid Helium On-Orbit Transfer (SHOOT) experiment are determined using a finite difference method to solve the one-dimensional two-fluid conservation equations. For practical purposes, forced flow of He II with Re > 10 6 can be treated as a classical turbulent flow. For a maximum SHOOT transfer rate of 800 dm 3 h −1, the temperature rise between the pump outlet and the receiver tank is about 80 mK with a 7 W heat load imposed on the 4 m long transfer line. A pump outlet pressure of 160 Torr is required to sustain the 800 dm 3 h −1 flow without causing vapour formation within the transfer line.
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