Page 103 - 捷運技術 第43期
P. 103
捷運技術半年刊 第43 期 97
環狀線捷運系統出土段活塞效應模擬分析
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ɕڲ౽ cॽߵࡪ cಝऎ c؍ߵᒿ 4
摘 要
ΐԓ˸৷ආɝᎆ༸ࣛdึପ͛ᜑٙᏀɢᜊʷdϾϤᏀɢᜊʷึᅂᚤ࠱܄ٙബ
ቇܓfΪϤϞ̀ࠅ০࿁ᎆ༸ٙ٤ंਗɢආБʱؓd˸ணجࠥЭᏀɢᜊʷඎf͉˖ڷ০࿁
̨̏ઠ༶ӻ୕ᐑًᇞ̈ɺݬdл͜ɧၪᅰ࠽ᅼᏝdʱؓʔΝᇞఆ̪ۨᇠላഐԉܓʘ
Ꮐɢᜊʷઋرf͟ᅼᏝʱؓdӋ௰ʃცӋʿ௰Գٙᇞఆ̪ۨᇠላഐԉܓdԨ০
࿁ணࠇમ͜ʘᇞఆ̪ۨᇠላഐԉܓආБ༉൙Пf
關鍵詞：捷運、三維數值模擬、出土段、活塞效應、線性喇叭型緩衝結構
Piston Effect Simulation of Taipei MRT Circular Line's Daylighting Section
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Chun-Chih Ting Ying-Che Weng Chin-Hai Chen Ing-Houng Lin 4
Abstract
An obvious pressure change is generated when a train enters a tunnel at high speed,
causing an impact on passenger comfort. Thus, an analysis and assessment of aerodynamics is a
necessity in order to reduce the pressure change. This paper aims to analyze the pressure change
from a variety of angles of linear horn hoods on the Taipei MRT Circular line's daylighting
section using 3-dimensional numerical simulations. Through simulation analysis, the minimum
and the optimal angles of the linear horn hoods have been gained for design use. In addition, this
paper examines the design angle of the linear horn hood in this project.
Keywords: mass rapid transit, CFD, daylighting section, piston effect, linear horn hood
1c ʕጳʈᚥਪʮ̡ዚʈࢪccccccmax@mail.sinotech.com.tw
2c ̨ͭᝄɽኪዚʈӺה௹ɻࡉ፯ɛccd95522029@ntu.edu.tw
3c ʕጳʈᚥਪʮ̡ዚҦஔଣcccccchench@sinotech.com.tw
4c ʕጳʈᚥਪʮ̡ዚଣccccccclinihg@mail.sinotech.com.tw
