Thermal Environment inside a Tunnel after Thermobaric Explosion
The outstanding thermal damage effect of thermobaric explosive (TBX) is enhanced in closed or semiclosed spaces, which may pose a serious threat to the security of people sheltered in tunnels or other protective engineering. In order to investigate the thermal environment inside a tunnel after therm...
Saved in:
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2017-01-01
|
| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2017/5427485 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832549513963765760 |
|---|---|
| author | Fei Chen Jinfeng Mao Jin Zhou Pumin Hou Liyao Liu Shangyuan Chen |
| author_facet | Fei Chen Jinfeng Mao Jin Zhou Pumin Hou Liyao Liu Shangyuan Chen |
| author_sort | Fei Chen |
| collection | DOAJ |
| description | The outstanding thermal damage effect of thermobaric explosive (TBX) is enhanced in closed or semiclosed spaces, which may pose a serious threat to the security of people sheltered in tunnels or other protective engineering. In order to investigate the thermal environment inside a tunnel after thermobaric explosion, we developed a damage evaluation method for the thermal radiation of explosion fireballs in tunnels; secondly, the air temperature distribution inside a tunnel shortly after explosion was theoretically analyzed; finally, the dynamic thermal environment after the explosion and the influences of TBXs mass and initial ground temperature on it in cases of open and blocked tunnels were numerically simulated with the FLUENT software. The results show that the fireball thermal radiation damage occurs mainly in the vicinity of the explosion source. The air temperature inside a tunnel shortly after the explosion decreases continuously with increasing distance from the explosion source and finally reaches the initial air temperature. The decay rate of air temperature inside a tunnel is slower in the blocked case, which increases the probability of causing a secondary fire disaster. The increase of explosive mass and the initial ground temperature favor the high-temperature performance of TBX, especially for the blocked tunnel. |
| format | Article |
| id | doaj-art-57b788f250f54526ab9c4bc3132e97ee |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2017-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-57b788f250f54526ab9c4bc3132e97ee2025-02-03T06:11:07ZengWileyShock and Vibration1070-96221875-92032017-01-01201710.1155/2017/54274855427485Thermal Environment inside a Tunnel after Thermobaric ExplosionFei Chen0Jinfeng Mao1Jin Zhou2Pumin Hou3Liyao Liu4Shangyuan Chen5College of Defense Engineering, PLA University of Science & Technology, Nanjing 210007, ChinaCollege of Defense Engineering, PLA University of Science & Technology, Nanjing 210007, ChinaCollege of Defense Engineering, PLA University of Science & Technology, Nanjing 210007, ChinaCollege of Defense Engineering, PLA University of Science & Technology, Nanjing 210007, ChinaCollege of Defense Engineering, PLA University of Science & Technology, Nanjing 210007, ChinaCollege of Defense Engineering, PLA University of Science & Technology, Nanjing 210007, ChinaThe outstanding thermal damage effect of thermobaric explosive (TBX) is enhanced in closed or semiclosed spaces, which may pose a serious threat to the security of people sheltered in tunnels or other protective engineering. In order to investigate the thermal environment inside a tunnel after thermobaric explosion, we developed a damage evaluation method for the thermal radiation of explosion fireballs in tunnels; secondly, the air temperature distribution inside a tunnel shortly after explosion was theoretically analyzed; finally, the dynamic thermal environment after the explosion and the influences of TBXs mass and initial ground temperature on it in cases of open and blocked tunnels were numerically simulated with the FLUENT software. The results show that the fireball thermal radiation damage occurs mainly in the vicinity of the explosion source. The air temperature inside a tunnel shortly after the explosion decreases continuously with increasing distance from the explosion source and finally reaches the initial air temperature. The decay rate of air temperature inside a tunnel is slower in the blocked case, which increases the probability of causing a secondary fire disaster. The increase of explosive mass and the initial ground temperature favor the high-temperature performance of TBX, especially for the blocked tunnel.http://dx.doi.org/10.1155/2017/5427485 |
| spellingShingle | Fei Chen Jinfeng Mao Jin Zhou Pumin Hou Liyao Liu Shangyuan Chen Thermal Environment inside a Tunnel after Thermobaric Explosion Shock and Vibration |
| title | Thermal Environment inside a Tunnel after Thermobaric Explosion |
| title_full | Thermal Environment inside a Tunnel after Thermobaric Explosion |
| title_fullStr | Thermal Environment inside a Tunnel after Thermobaric Explosion |
| title_full_unstemmed | Thermal Environment inside a Tunnel after Thermobaric Explosion |
| title_short | Thermal Environment inside a Tunnel after Thermobaric Explosion |
| title_sort | thermal environment inside a tunnel after thermobaric explosion |
| url | http://dx.doi.org/10.1155/2017/5427485 |
| work_keys_str_mv | AT feichen thermalenvironmentinsideatunnelafterthermobaricexplosion AT jinfengmao thermalenvironmentinsideatunnelafterthermobaricexplosion AT jinzhou thermalenvironmentinsideatunnelafterthermobaricexplosion AT puminhou thermalenvironmentinsideatunnelafterthermobaricexplosion AT liyaoliu thermalenvironmentinsideatunnelafterthermobaricexplosion AT shangyuanchen thermalenvironmentinsideatunnelafterthermobaricexplosion |