Modeling carbon black trace in building fire and its validation

作者：Yang, Peizhong^*; Yao, Guangyao; Tan, Xun

来源：Tunnelling and Underground Space Technology, 2015, 49: 35-48.

DOI：10.1016/j.tust.2015.03.004

• Carbon black trace
• Building fire
• Particle deposition theory
• Numerical simulation
• FDS

The carbon black trace is an important characteristic in a building fire accident and becomes crucial evidence in fire investigation. Based on the particle deposition theory, the mathematical model is established for the carbon black trace in a building fire. The numerical model of the carbon black trace is implemented into the Fire Dynamics Simulator (FDS) software. The total mass of the carbon black particle deposited on the wall surface can be calculated quantitatively and be simulated visually. The proposed model is applied into a fire accident as a validation. A numerical model is used to simulate the fire accident. In numerical simulations, the grid size resolution is analyzed. The accident reconnaissance data, accident interview record and accident scene photo/video are compared with the results of numerical simulations. It shows that the simulation results have a good agreement with those in the fire accident, which validates the mathematical model in this study. The proposed method can provide useful data for fire reconstruction and fire investigation.

• 出版日期2015-6
• 单位上海交通大学