## Abstract

We study the evolution of a two component fluid consisting of "blue" and "red" particles which interact via strong short range (hard core) and weak long range pair potentials. At low temperatures the equilibrium state of the system is one in which there are two coexisting phases. Under suitable choices of space-time scalings and system parameters we first obtain (formally) a mesoscopic kinetic Vlasov-Boltzmann equation for the one particle position and velocity distribution functions, appropriate for a description of the phase segregation kinetics in this system. Further scalings then yield Vlasov-Euler and incompressible Vlasov-Navier-Stokes equations. We also obtain, via the usual truncation of the Chapman Enskog expansion, compressible Vlasov-Navier-Stokes equations.

Original language | English (US) |
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Pages (from-to) | 1087-1136 |

Number of pages | 50 |

Journal | Journal of Statistical Physics |

Volume | 101 |

Issue number | 5-6 |

DOIs | |

State | Published - Dec 2000 |

## All Science Journal Classification (ASJC) codes

- Statistical and Nonlinear Physics
- Mathematical Physics

## Keywords

- Binary fuids
- Kinetic and hydrodynamic equations
- Long-range interactions
- Phase segregation