Simulations of convective heat transfer in rectangular microchannel using thermal lattice Boltzmann method

The microfluidics becomes an emerging field of interest due to the advent micro electro mechanical system. In this work simulations were performed investigate heat transfer phenomena in microchannel using 2-D D2Q9 model thermal lattice Boltzmann method. It is applicable whole range slip velocity. boundary condition which combination bounce and specular reflection was applied along with constant temperature condition. For Knudson number greater than 0.001 (slip flow) fluid show at walls channel. Reynolds kept 10, Number 0.002, aspect ratio (length/height) 2. shows a 8% free stream velocity reported range. resulting local Nusselt calculated responsible quantify convective transfer. simulation results ahown coraborate well analytical solution empirical relations. Hence method satisfactorily predicted momentum microchannel.