A method for the three-dimensional numerical simulation of superfluid helium

L. Bottura*, C. Darve, N. A. Patankar, W. Van Sciver

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

Transport phenomena in superfluid helium can be described using the two-fluid Landau-Khalatnikov model and the Gorter-Mellink mutual friction. Here we discuss a mathematical formulation of the two-fluid model that uses macroscopic conservation balances of mass, momentum and energy of each species, and assumes local thermodynamic equilibrium. A particularity of this model is that it describes the state of He II as well as that of each of the two-fluid components in terms of pressure p and temperature T, which is convenient for stable numerical solution. The equations of the model form a system of partial differential equations (PDE) that can be written in matrix form for convenience. On this base, a three-dimensional numerical model using a complete and consistent, while still practical, system of PDEs was developed. In the form described, the PDE can be solved using three-dimensional Lagrangian finite element in space supplemented by a Beam-Warming time-marching algorithm. Once validated, this solver will allow to simulate He II thermal counter-flow applied to arbitrary geometry.

Original languageEnglish (US)
Article number012008
JournalJournal of Physics: Conference Series
Volume150
DOIs
StatePublished - Jan 1 2009

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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