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Boundary effects in second sound near Tλ

✍ Scribed by D.R. Swanson; T.C.P. Chui; K.W. Rigby; J.A. Lipa

Publisher
Elsevier Science
Year
1990
Tongue
English
Weight
185 KB
Volume
165-166
Category
Article
ISSN
0921-4526

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✦ Synopsis

We investigate the effect of non-ideal boundary conditions applied to a second sound resonator near the lambda point. Appropriate boundary conditions for He-II are applied to a second sound resonator with a heater and detector at either end. We find the analytic boundary value solution for the homogeneous (zero gravity) differential equation. We show that the standing wave approximation is accurate to a few tenths of a percent at 10e8 K from the transition.

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