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VISCOSITY MEASUREMENTS IN DILUTE HELIUM-3 - HELIUM-4 MIXTURES
Abstract
We have measured the viscosity of a dilute mixture of 3He in 4He at temperatures from 5 to 100 mK and in magnetic fields of 0.35, 2.01 and 8.76 T using a vibrating wire viscometer. Subject to our choice of calibration function, the data at 0.35 T is in good agreement with theory. Due to an interaction of our viscometer with the magnetic field the motion of the wire at 2.01 and 8.76 T is not understood; however, the 2.01 T data can be brought into agreement with the 0.35 T data by adjusting a geometrical constant. An increase in the low temperature viscosity between 2.01 and 8.76 T is in qualitative agreement with theory (using an alternate choice of calibration function a decrease in viscosity between 2.01 and 8.76 T is observed).
Subject Area
Fluid dynamics|Gases
Recommended Citation
SCHMIEDESHOFF, GEORGE MARTIN, "VISCOSITY MEASUREMENTS IN DILUTE HELIUM-3 - HELIUM-4 MIXTURES" (1985). Doctoral Dissertations Available from Proquest. AAI8517151.
https://scholarworks.umass.edu/dissertations/AAI8517151