公路隧道竖井送排式通风送风口角度优化模型  

Optimized model of air supply outlet angle in highway tunnel blowing and exhausting longitudinal ventilation system

作　　者：方磊[1] 谢永利[2] 杨晓华[2] 

机构地区：[1]华南理工大学土木与交通学院,广东广州510641 [2]长安大学公路学院,陕西西安710064

出　　处：《长安大学学报（自然科学版）》2009年第4期69-72,共4页Journal of Chang’an University(Natural Science Edition)

基　　金：交通部重点科技项目(95-04-06-10)

摘　　要：为降低公路隧道竖井送排式通风能耗，应用雷诺数相似理论，对竖井送排式通风送风口与隧道轴向夹角进行物理模型试验研究，测试不同送风口角度时风速的变化规律。结果表明：送风口角度对送风动力的影响随送风段隧道平均风速的增大而增大；当隧道设计风速为6～8m／s时，送风口与隧道轴向夹角宜取5°～6°。In order to save ventilation energy of highway tunnel blowing and exhausting longitudi nal ventilation system, based on Reynolds Number Similarity theory, this paper researched air supply outlet angle, and tested wind speed changing regulations at different angles. The test results indicate that the angle affect ventilation motive greatly when average wind speed growth in blowing ventilation section; when designing wind speed in the tunnel is from 6 m/s to 8 m/s, the angle should be from 5° to 6°. 10 figs, 10 refs.

关 键 词：隧道工程 模型试验 竖井送排式通风 送风口角度 

分 类 号：U453.5[建筑科学—桥梁与隧道工程]