Pressure drop and transient heat transport in forced flow single phase helium II at high Reynoldsnumbers

✍ Scribed by Bernard Rousset; Gerard Claudet; Alain Gauthier; Peter Seyfert; Andre Martinez; Philippe Lebrun; Michel Marquet; Rob Van Weelderen

• Publisher: Elsevier Science
• Year: 1994
• Tongue: English
• Weight: 327 KB
• Volume: 34
• Category: Article
• ISSN: 0011-2275
• DOI: 10.1016/s0011-2275(05)80070-0

✦ Synopsis

Pressure drop and transient heat transport measurements had been performed in the superfluid helium test loop at CEA/CEN-Grenoble, France. Single phase helium II was circulated through a 28 mm I.D. tube, over a length of 200 m for mass flow rates between 0.02 and 0.1 kg/s. Steady-state pressure drop measurements allow us to estimate the friction factor for Reynolds numbers in the 106 range. Rectangular heat pulses were applied at mid-length, and the fluid temperature was measured at several locations along the flow, upstream and downstream. A code has been developed which uses the two-fluid model to simulate time-dependent heat transport helium II flow. Simulation results are in good agreement with experimental measurements.