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

长安大学学报（自然科学版）[ISSN:1006-6977/CN:61-1281/TN]

Issue:
2009年04期
Page:
69-72
Research Field:
Publishing date:
2009-08-20

Info

Title:
Optimized model of air supply outlet angle in highway tunnel blowing and exhausting longitudinal ventilation system
Author(s):
FANG Lei1; XIE Yong-li2; YANG Xiao-hua2
1.School of Civil Engineering and Transportation,South China University of Technology,Guangzhou 510641,Guangdong,China;2.School of Highway,Chang’an University,Xi’an 710064,Shaanxi,China
Keywords:
tunnel engineering;  model test;  blowing and exhausting longitudinal ventilation system;  air supply outlet angle
PACS:
U453.5
DOI:
-
Abstract:
In order to save ventilation energy of highway tunnel blowing and exhausting longitudinal 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.

References:

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Memo

Memo:
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Last Update: 2009-08-20