都市中懸浮微粒多因為建物量體形成風場阻滯而沈積,為改善都市環境品質,最具永續性者莫過於藉由自然風帶離氣膠粒子。本研究之目的在於,嘗試利用建築物上之主動性附加之導風可調式構件,進行都市風環境之疏導與控制,探討其降低都市空間之氣膠濃度之效果。 本研究將選擇台北科技大學內建物量體為研究對象,進行懸浮微粒及風場之檢測,求得實證環境背景、污染原、溫度等實場數值,並輸入流體力學Flovent6.1及StarCD等之風場及微塵軟體進行改善模擬。嘗試分析不同之導風構件、微氣候條件下,其降低都市中懸浮微粒濃度之都市生態因子改善效果。探討建物上所設置之導風設備、建物型態、導風板之角度等控制變因。 本研究成果顯示: 一、經由導風設施之控制改變,周邊風場之流向、流速有顯著改變順暢之效果。 二、藉由風場之行為模式改變,局部定點氣膠濃度有顯著之改善。 三、風場之改變,並且局部改善了都市熱島效應所造成之都市區域高溫現象。
The Suspended particles have to be the most important Pollutant Standards Index. Our country had take PM10 to one of the Daily Pollutant Standards Index. To reduce the particles use to bowl out by urban wind. But urban route is always disturbed by building in the block that makes wind directions change. For promote the quality of urban environment, many scholars use rain or artificial watering system to improve the pollution. Because the work is ineffective. So we use the positive structure attachment to the building, try to channelize and control the urban wind conditions. The study will chose the building in NTUT be the target. Then find out the distribution of suspended particles and wind field. So we can get the polluted area to make the improve strategy. The second step we can review the key points like wind equipment、building type and wind board angles. On the other hand, we’ll make the isopleth of pollute concentration by GIS system. In addition, the wind field and particles simulate software like Flovent5.1 and StarCD3.24 can be in accordance with the project. The goal is try to analyze the relationship between building condition and wind board construction. For reduce the PM10-2.5 concentration in the city. Anticipations: 1、Use the dynamic characteristic of urban wind and channelize system to improve the urban wind field. 2、Make the wind field efficiently by change the part of building types. 3、From the calculation, we can evaluate the ability of component.