Characterizing Heat Transfer in Suspension Flow

 Using Lattice-Boltzmann Method

        Heat transfer in suspension flow in microchannels is studied. The computational method is based on the solution of the     lattice-Boltzmann equation for the fluid flow, coupled with the energy equation for thermal transport  and the Newtonian dynamics equations for direct simulation of suspended particle transport.

       The discrete Boltzmann equation is used to update the distribution function with the BGK (Bhatangar-Gross-Krook) collision term, given by:

        The equilibrium distribution function is defined as:

The Animation shows the streamlines and isotherms for a hot particle in a confined flow at Re=110. In this case the periodic vortex shedding is observed. The isotherms follow the periodic motion in the downstream wake.