Experimental results are presented for superfluid (He II) flow through porous plug liquid-vapor phase separators. Tests have been performed on seven porous plugs with different thicknesses or different permeabilities....Experimental results are presented for superfluid (He II) flow through porous plug liquid-vapor phase separators. Tests have been performed on seven porous plugs with different thicknesses or different permeabilities. The temperature was measured from 1.5K to 1.9K. Two flow regions were observed in small and large pressure and temperature differences regions respectively. The experimental data are compared with theoretical predictions. The performance and applicability of the basic theory are discussed. Hysteresis of the flow rate is also observed and discussed.展开更多
文摘Experimental results are presented for superfluid (He II) flow through porous plug liquid-vapor phase separators. Tests have been performed on seven porous plugs with different thicknesses or different permeabilities. The temperature was measured from 1.5K to 1.9K. Two flow regions were observed in small and large pressure and temperature differences regions respectively. The experimental data are compared with theoretical predictions. The performance and applicability of the basic theory are discussed. Hysteresis of the flow rate is also observed and discussed.
