A Study On The Smoke Movement Pattern In The High-rise Building Fire

Fire is one of the most common and frequently threat to social development and publicsafety. With the rapid development of world economy and the increasing of urban population,the high-rise building gradually become an inevitable trend of the development of modernsociety. High-rise buildings fire is different from other forms because of the complex structureand diversity function of high-rise buildings. Therefore, the research on the smoke movementpattern in the high-rise is the key to effectively prevent the high-rise building fire disaster andconduct personnel safety evacuation plan.Fire numerical simulation research is the basic method of modern fire science research.This paper about fire scenario setting was analyzed. Taking a high-rise building in hangzhouas the research object, the parameters required for design of building fire simulation. Thispaper studys the smoke movemant pattern in the high-risebuilding fire. This paper applies thedomestic and foreign theoretial research and experimental achievements of the high-risebuilding fire, and introducing the United States National Institute of Standards andTechnology NIST (National Institute of Standards and Technology) developed for thesimulation software of the Fire: PyroSim (Thunderhead Engineeering PyroSim) dynamicsimulation software, Fire simulation software FDS (Fire Dynamics Simulator) andvisualization software Smokeview.In this paper, three different conditions are numerically simulated. Mainly includes theclosed room fire simulation, opening into the wind room fire simulation, corridors and stairssimulation analysis after openging into the room after the fire. Fire simulation mainlyexamines the five aspects: gas content in the process of hot gas flow, the whole plane floorheating value, the volume fraction of CO, the distribution of temperature field and visibility. Because of the different working conditions of fire smoke in the production process andsmoke flow regularity has an important influence, this paper simulated the different workconditions, and the simulation and fitting result has carried on the statistical data, the firespreading regularity is obtained.The results of the study provides a certain theoretical instructions and technical supportfor effective control of smoke, the smoke control design, personnel evacuation and firefighting in high-rise building fire.