Simulation and Verification of Pressure Drop in Silicon Microchannel Based on Porous Model Equivalence

Pressure drop is an important parameter of microchannel liquid cold plate. In this article, the pressure drop of the staggered strip fin microchannel was simulated based on porous model equivalence by FLUENT software. Periodic cell pressure drop was simulated to equal to that of the entire liquid cold plate. The parameters of the porous model were calculated by the relationship between pressure drop and flow rate. A model including manifold and liquid cold plate was established, in which the liquid cold plate was equivalent by the porous model, and the total pressure drop of the cooling module was acquired by simulation. Finally, a test system was built, and the simulation method based on the porous model equivalence was proved to be simple, efficient and accurate through the comparison of simulation and test values.