Auxiliary fire investigation system and method by smoked carbon black traces

Abstract

The invention provides an auxiliary fire investigation system and method by smoked carbon black traces. The auxiliary fire investigation system comprises a wall position judge module, a wall roughness judge module, a carbon black trace computation module, a display module and an input module, wherein the input module is used for inputting basic parameters of carbon black pellets, solving waiting time steps and obstacle surface information; the wall position judge module is connected with the input module; the wall roughness judge module are respectively connected with the input module and the wall position judge module; the carbon black trace computation module is connected with the wall roughness judge module; the display module is connected with the carbon black trace computation module and used for displaying the carbon black traces according to the received computed results of the carbon black traces. The auxiliary fire investigation system and method can realize fire accident numerical simulation, the static and dynamic visual numerical simulation of the carbon black traces and the quantitative analysis of the carbon black traces in a computational area and can be widely applied to the fields of fire accident cause identification, fire scientific research, reality simulation and the like.

Description

technical field [0001] The invention relates to a numerical simulation system for assisting fire investigation, in particular to an auxiliary fire investigation system and method for smoky carbon black traces which can assist in fire investigation and deduce the fire source. Background technique [0002] Fire accidents often cause significant personal and property losses. In recent years, on a global scale, there have been more than 4 million fires and more than 40,000 deaths each year. In my country, the number of deaths caused by fire accidents has always been among the highest in the world. Many man-made or non-man-made major fire accidents have brought huge losses to the safety of people's lives and property. [0003] At present, there are relatively few studies on the numerical simulation of carbon black traces at home and abroad, and there are two problems in the existing research: [0004] 1. In the existing simulations, the particle concentration of the flue gas n...

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Problems solved by technology

[0004] 1. In the existing simulations, the particle concentration of the flue gas near the wall surface is often used to replace the carbon black traces. Although this is reasonable, it must be restricted by strict environmental conditions

[0005] 2. Although the formation of carbon black traces is related to the concentration of flue gas particles, it is also related to many factors such as time, temperature, and flue gas flow velocity. Obviously has limitations when dissipating in the atmosphere

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