Title :
Numerical simulation of two-phase Helium II stratified flow in cryogenic units of TESLA
Author :
Xiang, Yu ; Wolff, Siegfried ; Petersen, Bernd ; Van Sciver, Steven W.
Author_Institution :
DESY, Hamburg, Germany
fDate :
3/1/2002 12:00:00 AM
Abstract :
Numerical simulation has been carried out for two-phase Helium II stratified flow in 12 horizontal or declining cryogenic units each with a length of about 2.5 Km for the proposed 500 GeV TESLA (TeV Superconducting Linear Accelerator). The simulation predicts the He II level, the vapor mass flow rate in the two-phase tube, and the pressure profile through the gas return pipe of all units as well. Based on the numerical results the flow pattern and the stability of He II/vapor two-phase flow are discussed.
Keywords :
cryogenics; flow instability; flow simulation; linear colliders; stratified flow; superfluid helium-4; two-phase flow; 2.5 km; 500 GeV; He; TESLA; cryogenic unit; flow pattern; flow stability; numerical simulation; superconducting linear accelerator; two-phase Helium II stratified flow; Cryogenics; Free electron lasers; Gas lasers; Helium; Linear accelerators; Numerical simulation; Predictive models; Refrigeration; Stability; Superconducting magnets;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
DOI :
10.1109/TASC.2002.1018657
