近年來隨著國際間多起捷運與地下鐵系統之火災事故，造成極大的人員傷亡，歸納其事件造成重大傷亡之主要原因在於煙控系統之操作失效或緊急運轉策略不健全。因此，本文由美國國家標準局研發之火災成長預測方程式—FDS（Fire Dynamics Simulator）與另一國際間流體計算應用著名軟體（Star-CD），模擬比較地下車站火災時狀況且預測火災之煙沈積高度，和高度沈降速率。模擬結果顯示煙沈積高度及煙沈積速度比對之誤差皆在工程容許範圍內，對往後CFD模擬有著重要參考價值。

In recent year, there were many fire accidents in MRT and subway station,due to faolure in smoke control system and emergency operation strategies. The goal of this project is to use two sofeware—FDS and Star-CD to simulate the fire in MRT station and predict the height of smoke layer and its descending rate .The comparison of the two indicated sucessful result can be obtained with deviations within engineering tolerance..

第一章 緒論
1-1研究背景與目的
1-2研究方法
1-3文獻回顧
1-3-1性能式煙控系統
1-3-2選擇煙捲吸率預測公式與N值決定
1-4研究步驟與內容

第二章 數值方法
2-1（LES）大尺度渦流模擬方法
2-1-1火災模擬程式FDS說明
2-2（RANS）雷諾時間平均法
2-3格點測試

第三章 環境說明與設定
3-1火源設計說明
3-2 火源熱釋放率之決定
3-3 模擬結果判斷標準

第四章 FDS與Star-CD模擬結果
4-1模型參數與邊界條件說明
4-2模擬結果說明

第五章 結論
（1）車站模擬結果分析
（1）FDS與Star-CD軟體功能比較

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