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AN EXPERIMENTAL STUDY ON ENVIRONMENTAL IMPACT OF AUTOMOBILE EXHAUST FROM URBAN TRANSPORTATION TUNNELS
Author(s): 
Pages: 188-193
Year: Issue:  2
Journal: ACTA SCIENTIAE CIRCUMSTANTIAE

Keyword:  交通隧道汽车废气城市环境影响空气污染风洞物理模拟;
Abstract: 利用风洞物理模拟手段,对处于城市街区的交通隧道风井塔和峒口排放污气的环境影响作了实验研究,并基于射流理论和现场实测,建立峒口污染物散布的预测模式,该模式用于模型区环境影响评价.研究表明,(1)隧道峒口污气排放有可能造成短时局地比较严重的污染影响,废气浓度可能超标,但影响范围不大,并且与周围建筑物、环境、气温和车辆运行状况等密切相关.(2)建筑物的空气动力学效应对污染物扩散有明显影响.(3)物理模拟手段具有其独到的优越性,模式计算与风洞测量结果可以互相检验比较.
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