He II Heat and Mass Transfer

Chapter 6 emphasized the physics of He II including heat transport in the laminar flow and the turbulent mutual friction regimes. These mechanisms are fundamental to the behavior of He II, although that discussion mostly described idealized behavior. In the present chapter we will build on the fundamental understanding of He II to treat practical heat and mass transfer problems that may occur in He II systems. In doing so, the concepts already developed must be extended into regimes that are more usable in engineering calculations. To be more specific, the emphasis of Chap. 6 has been to understand the interactive mechanisms and the two fluid nature of He II.