Dynamical pressure for fluid mixtures with several temperatures

Abstract

We consider binary mixtures of fluids with components having different temperatures. A new dynamical pressure term is associated with the difference of temperatures between components even if fluid viscosities are null. The non-equilibrium dynamical pressure can be measured and may be convenient in several physical situations as for example in cosmological circumstances where a dynamical pressure played a major role in the evolution of the early universe.

arXiv admin note: substantial text overlap with arXiv:0905.0226

References in corpus (4)

• Identification of an average temperature and a dynamical pressure in a multitemperature mixture of fluids
• Variational Theory of Mixtures in Continuum Mechanics
• Hyperbolic Models of Homogeneous Two-Fluid Mixtures
• Mixture of Fluids involving Entropy Gradients and Acceleration Waves in Interfacial Layers