The effect of nanoparticle volume fraction on hydrodynamic and thermally fully developed forced convection heat transfer in parallel-plate channels was numerically studied under constant wall temperature boundary condition using energy conserving dissipative particle dynamics (DPDe). The solution domain was considered to be two-dimensional with periodic boundary condition in the flow direction and no-slip boundary conditions at top and bottom walls of the channel. The results were shown via fully developed velocity and temperature distributions across the channel cross-section. Nusselt numbers are calculated from the gradient of temperature at the wall and compared with the analytical solutions. The effect of nanoparticle volume fraction on Nusselt number was discussed.

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