TY - JOUR
TI - Simulations of convective heat transfer in rectangular microchannel using thermal lattice Boltzmann method
AU - Bashir Shazia
AU - Bashir Muhammad Anser
AU - Mahmoud Khaled H
AU - Alsubaie Abdullah S. A.
AU - Afzal Farkhanda
AU - Alam Mehboob
AU - Inc Mustafa
JN - Thermal Science
PY - 2022
VL - 26
IS - 101
SP - 219
EP - 228
PT - Article
AB - The microfluidics becomes an emerging field of interest due to the advent of  micro electro mechanical system. In this work simulations were performed to  investigate the heat transfer phenomena in microchannel using the 2-D D2Q9  model of thermal lattice Boltzmann method. It is applicable in the whole  range of slip velocity. The slip boundary condition which is combination of  bounce and specular reflection was applied along with constant temperature  boundary condition. For Knudson number greater than 0.001 (slip flow) fluid  show slip at walls of the channel. The Reynolds number was kept at 10,  Knudson Number 0.002, and aspect ratio (length/height) of 2. The fluid shows  a slip of 8% of free stream velocity which is in the reported range. The  resulting local Nusselt number was calculated which is responsible to  quantify convective heat transfer. The simulation results were ahown to  coraborate well with the analytical solution and empirical relations. Hence  thermal lattice Boltzmann method satisfactorily predicted heat transfer and  momentum transfer phenomena in microchannel.