The thermomechanical flow of He II through a porous element for a fountain effect pump was experimentally investigated to understand the general flow characteristics in both ideal and turbulent flow states. The flow rate increases in proportion to the heat input Q in the ideal superfluid flow state
Thermomechanical flow of He II through porous bodies
β Scribed by L. Dresner
- Publisher
- Elsevier Science
- Year
- 1993
- Tongue
- English
- Weight
- 344 KB
- Volume
- 33
- Category
- Article
- ISSN
- 0011-2275
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β¦ Synopsis
The thermomechanical flow of He II through a porous body has been studied by means of a variational principle. For a given porosity, the flow is a maximum for uniform pores. For actual pores the flow is always less, the reduction being primarily determined by the constriction at bottle-necks. It is shown that the thermomechanical mass flow of He II can be inferred from a measurement at room temperature of the electric current flow through the interstices of the porous body when they are filled with a conducting medium.
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