Publikacje

Abstract:

The present work describes an experimental study and CFD modeling of fluid flow and
heat transfer characteristics in a heat sink with several asymmetrical heated mini-channels. The data
from the experimental research were the basis for numerical calculations. During experiments, the
temperature measurement of the outer heater surface was performed by infrared thermography to
verify the results of numerical calculations performed in Simcenter STAR-CCM+ software. The main
objective was to determine the values of the parameters tested to evaluate the intensity of the heat
transfer processes. In the numerical simulations, important variables, mainly the working fluid, heater
material, the spatial orientation of the test section, and the number of mini-channels, were assumed.
The results of the numerical computations were discussed. Due to simulations, it was possible
to indicate which parameters tested in terms of heat transfer turned out to be the most effective.
Furthermore, a mesh dependency analysis based on the grid convergence index (GCI) was performed.
The residuals, as good indicators of convergence, achieved low values. Generally, the data presented
showed satisfactory convergence of the results achieved as a result of the computational procedure.

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Experimental Study and CFD Modeling of Fluid Flow and Heat Transfer Characteristics in a Mini-channel Heat Sink Using Simcenter STAR-CCM+ Software