Numerical Study on Optimization of Structural Parameters of Guiding Vane of Longitudinal Ventilation for Highway Tunnel
In order to reduce the energy loss during longitudinal ventilation for highway tunnels, a guiding vane was proposed to be installed on the tunnel dome in the downstream of the air supply outlet. The effects of the guiding vane’s angles and equivalent heights on the effectiveness of tunnel ventilatio...
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| Format: | Article |
| Language: | English |
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Wiley
2018-01-01
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| Series: | Advances in Civil Engineering |
| Online Access: | http://dx.doi.org/10.1155/2018/2721315 |
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| author | Shixian Wu Heqing Liu Yongping Chen Haiqiao Wang |
| author_facet | Shixian Wu Heqing Liu Yongping Chen Haiqiao Wang |
| author_sort | Shixian Wu |
| collection | DOAJ |
| description | In order to reduce the energy loss during longitudinal ventilation for highway tunnels, a guiding vane was proposed to be installed on the tunnel dome in the downstream of the air supply outlet. The effects of the guiding vane’s angles and equivalent heights on the effectiveness of tunnel ventilation were investigated by the numerical simulation using the CFD approach. When the installation angle of the guiding vane was 2∼5 degrees and the equivalent height was 0.20∼0.35, the guiding vane played a significant role in drag reduction. Under the circumstances, the pressure-rise of air supply outlet was the maximum. The required distance for pressure-rise was approximately 90∼115 m that was not affected by the average air velocity in the tunnel and the structure parameters of the guiding vane. |
| format | Article |
| id | doaj-art-a18c8cadd6a54f638a62ad59b6a863d0 |
| institution | Kabale University |
| issn | 1687-8086 1687-8094 |
| language | English |
| publishDate | 2018-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Civil Engineering |
| spelling | doaj-art-a18c8cadd6a54f638a62ad59b6a863d02025-02-03T01:24:23ZengWileyAdvances in Civil Engineering1687-80861687-80942018-01-01201810.1155/2018/27213152721315Numerical Study on Optimization of Structural Parameters of Guiding Vane of Longitudinal Ventilation for Highway TunnelShixian Wu0Heqing Liu1Yongping Chen2Haiqiao Wang3School of Resource, Environment and Safety Engineering, Hunan University of Science and Technology, Xiangtan 411201, Hunan, ChinaSchool of Resource, Environment and Safety Engineering, Hunan University of Science and Technology, Xiangtan 411201, Hunan, ChinaDepartment of Building Environment and Energy Engineering, Guilin University of Aerospace Technology, Guilin 541004, Guangxi, ChinaSchool of Resource, Environment and Safety Engineering, Hunan University of Science and Technology, Xiangtan 411201, Hunan, ChinaIn order to reduce the energy loss during longitudinal ventilation for highway tunnels, a guiding vane was proposed to be installed on the tunnel dome in the downstream of the air supply outlet. The effects of the guiding vane’s angles and equivalent heights on the effectiveness of tunnel ventilation were investigated by the numerical simulation using the CFD approach. When the installation angle of the guiding vane was 2∼5 degrees and the equivalent height was 0.20∼0.35, the guiding vane played a significant role in drag reduction. Under the circumstances, the pressure-rise of air supply outlet was the maximum. The required distance for pressure-rise was approximately 90∼115 m that was not affected by the average air velocity in the tunnel and the structure parameters of the guiding vane.http://dx.doi.org/10.1155/2018/2721315 |
| spellingShingle | Shixian Wu Heqing Liu Yongping Chen Haiqiao Wang Numerical Study on Optimization of Structural Parameters of Guiding Vane of Longitudinal Ventilation for Highway Tunnel Advances in Civil Engineering |
| title | Numerical Study on Optimization of Structural Parameters of Guiding Vane of Longitudinal Ventilation for Highway Tunnel |
| title_full | Numerical Study on Optimization of Structural Parameters of Guiding Vane of Longitudinal Ventilation for Highway Tunnel |
| title_fullStr | Numerical Study on Optimization of Structural Parameters of Guiding Vane of Longitudinal Ventilation for Highway Tunnel |
| title_full_unstemmed | Numerical Study on Optimization of Structural Parameters of Guiding Vane of Longitudinal Ventilation for Highway Tunnel |
| title_short | Numerical Study on Optimization of Structural Parameters of Guiding Vane of Longitudinal Ventilation for Highway Tunnel |
| title_sort | numerical study on optimization of structural parameters of guiding vane of longitudinal ventilation for highway tunnel |
| url | http://dx.doi.org/10.1155/2018/2721315 |
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