基於淡江大學新工學館大樓考量室內的採光設計，於中庭頂樓有透天窗戶之設置，使得大樓內部光線充足，但也因此在炎熱的夏季裡，較高之樓層普遍有悶熱的跡象，以模擬此現象為本研究之主要目的，並希望能加以改善且達到節約能源之效果。 綜觀相關之建築內部流場研究，研究主題由室內空調氣流流動情況、室內採光設計、建築物開口處外部遮陽系統、建築物可變開口模式的自然通風、強制通風以及內部通風路徑等，但對於太陽輻射熱在建築內部流場之影響的相關研究較少，因此本數值研究以此作為主軸，數值模擬問題為輔進行相關探討。 本研究利用模擬對象在不同開口位置與大小的情況下，分別對數值模擬中不同計算區域、不同紊流模式以及不同網格數之比較依序討論，並以實驗數據加以驗證，了解各參數之間相互影響關係，另外針對數值模擬與真實情況之差異性加以討論，以期找出本模擬問題之最佳模擬方式。前處理器：Pro-E、ICEM-CFD。求解器：商用計算軟體FLUENT。後處理器：Tecplot Due to the need for interior day-lighting in the New Engineering Building of Tamkang University, a translucent window is placed on top of the courtyard garret. It allows sufficient natural light to come into the building, but a large amount of heat is also brought in at the same time by the sun light, especially in the summer. This radiation heat causes an unpleasantly high temperature in the upper floors. The objective of this research is to numerically simulate this ventilation problem and also trying to improve it. Most building ventilation researches study interior air circulation, interior day light adoption, thermal effects of shading device in buildings, natural and force ventilation efficiency of the separate open model on buildings, the interior ventilation path, and so on. The influence of solar radiation on the ventilation and temperature inside a building is much less investigated. We used a commercial software, FLUENT, to study the effects of the size and location of the ventilation openings on the flow field and temperature inside the building. We used a CAD package PRO/E to construct, from simple to complex, three building models. We compared the results from these three models. We also studied the effects of different turbulence models on the numerical results. Finally the numerical results were compared with measured data and the correlations were discussed. Pre-processor: Pro-E, ICEM-CFD. Solver: FLUENT. Post-processor: Tecplot.
