AI Article Synopsis
- This paper develops a method to predict smoke backlayering length in tunnels affected by double-source fires through theoretical analysis and new formulas.
- It introduces fire power and distance influence coefficients to enhance the accuracy of predictions, originally based on single-source fire scenarios.
- The results show that the revised prediction formula closely matches simulation values, which can aid in understanding and managing smoke in tunnel fire emergencies.
Article Abstract
In order to predict the smoke backlayering length of double-source fire in tunnels, this paper deduced the dimensional expressions for smoke backlayering length by theoretical analysis and proposed a prediction formula for smoke backlayering length in single-source fire on the basis of the Fire Dynamics Simulator. Based on the results, the paper proposed a method for studying the smoke backlayering length of double-source fire in the tunnel. By introducing the fire power influence coefficient α and the distance influence coefficient β, the formula for predicting smoke backlayering length in single-source fire was revised to obtain a new formula for predicting the smoke backlayering length of double-source fire. By comparing the formula prediction value with the simulation value, it is found that the prediction formula is almost accurate. This study will be helpful for understanding the multisource tunnel fire and predicting the smoke backlayering length of double-source fire in tunnels, which can provide guidance for tunnel fire rescue.
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Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11238239 | PMC |
| http://dx.doi.org/10.1021/acsomega.4c01425 | DOI Listing |
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