| Summary: | 碩士 === 國立成功大學 === 建築學系 === 103 === SUMMARY
This research aims at the correlation between external wind field and smoke flow.The evaluating standards of high-rise building’s exhaust windows’ performance include the effect of different approaching wind directions and window-opening angles on building’s ventilation. After comparing and analyzing the results of wind tunnel experiments and CFD simulations, I concluded smoke flow patterns of different combination of approaching wind directions and window-opening angles, and aimed at discussing installing ways of relative position of exhaust windows for high-rise building, then proposed effective ways for natural exhaust.According to this research, it was found that approaching wind directions influence interior flow patterns dramatically. Either installing windows on walls next to each other or opposite walls, as long as one of the windows is buffeted by approaching wind directly, can achieve efficient ventilation. Experiment result shows that interior-compartments and open-layout models have the same external wind fields, and the interior-compartments model can lead flows with different entering angles but enter through the same installing windows into the same interior wind field by compartments and door position. Therefore, the results are easier to estimate and classified as the number of flow patterns decrease.
Keywords: high-rise building, natural exhaust, flow visualization, wind tunnel test
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