This research uses the advanced simulation tool FloTHERM to study the effects of different opening ratios of the front panel to temperature field in the micro-desktop. Based on the studies, the best opening ratio with better cost performance and lower temperature is selected. This paper calculates flow fields and temperature fields inside the enclosure at different opening ratios, evaluates correlation between opening ratio and temperature of important components under different ambient temperatures, and selects the best solution where the system operates the most cost effectively. The simulation results are compared with experimental data to verify the validity of simulation calculation.

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