Second law of thermodynamics in volume diffusion hydrodynamics in multicomponent gas mixtures

作者：Dadzie S Kokou^*

来源：Physics Letters A, 2012, 376(45): 3223-3228.

DOI：10.1016/j.physleta.2012.09.051

• Multicomponent gas mixtures
• Volume/mass diffusion
• Non-continuum flows
• Bi-velocity hydrodynamics
• Boltzmann equation
• Kinetic equations

We presented the thermodynamic structure of a new continuum flow model for multicomponent gas mixtures. The continuum model is based on a volume diffusion concept involving specific species. It is independent of the observer's reference frame and enables a straightforward tracking of a selected species within a mixture composed of a large number of constituents. A method to derive the second law and constitutive equations accompanying the model is presented. Using the configuration of a rotating fluid we illustrated an example of non-classical flow physics predicted by new contributions in the entropy and constitutive equations.

• 出版日期2012-10-1