Page 197 - 捷運技術 第32期

捷運技術半年刊 第 32 期 94 年 2 月 187

計算流體力學(CFD)軟體於捷運工程之應用

丁俊智

摘 要要
摘摘
要
摘 要
本文之目的在於介紹 CFD（計算流體力學）軟體以及目前 CFD 軟體於捷運工程方面的應
用。CFD 軟體於捷運工程的應用主要分為火災狀況模擬以及列車活塞效應模擬。火災模擬主
要包含車站火災以及列車於隧道內失火，以分析人員逃生時間是否足夠。列車活塞效應模擬
主要在於分析當列車移動時所產生的壓力，藉以分析車站月台門所須承受之壓力。除以上模
擬議題外，CFD 軟體亦應用於分析其它規劃設計上所遇到的問題，本文將以流明天花之開孔
率應為多少才不影響蓄煙能力為例進行說明。

關鍵詞：捷運、計算流體力學、火災、活塞效應、流明天花

Application of CFD Software

in Metro Engineering

Chun-chih Ting

Abstract

This paper introduces Computational Fluid Dynamics (CFD) software and its applications used
in Mass Rapid Transport (MRT) engineering. These applications contain a fire simulation and a
piston-effect simulation. The fire simulation features fires in a station or in a tunnel. The purpose of
the fire simulation is to assess the time needed for passengers to evacuate the stations or trains in
case of fire. The piston-effect simulation analyzes the pressure distribution on the platform screen
door caused by a moving train running through a station in a tunnel. CFD software is also used to
analyze other issues in Metro engineering. This paper discusses the optimum percentage of opening
of illuminated ceilings as an example of additional applications for CFD software.

Keywords: mass rapid transit, CFD, fire, piston effect, illuminated ceiling

中興工程顧問公司工程師 max@mail.sinotech.com.tw