6533b854fe1ef96bd12adff7

RESEARCH PRODUCT

Kinetic model for steady heat flow

J. Javier BreyAndrés SantosVicente Garzó

subject

Physics::Fluid DynamicsPhysicsTemperature gradientSteady stateDistribution functionHeat fluxKinetic modelThermalTurbulence kinetic energyKinetic theory of gasesThermodynamicsMechanicsNonlinear Sciences::Cellular Automata and Lattice Gases

description

We construct a consistent solution of the Bhatnagar-Gross-Krook (BGK) model kinetic equation describing a system in a steady state with constant pressure and nonuniform temperature. The thermal profile is not linear and depends on the interaction potential. All the moments of the distribution function are given as polynomials in the local thermal gradient. In particular, the heat flux always obeys the (linear) Fourier law.

https://doi.org/10.1103/physreva.34.5047