Computer Modeling and Ezperimental Challenges of Large-Scale Fire Tests
The prediction of the behavior of fires, which has been traditionally addressed through experiments, is currently been tackled by computer modeling. However, both approaches are characterized by several challenges, which must be carefully considered and still need to be overcome. On the modeling front, FM Global has recently committed to a development effort based on an open-source platform (OpenFOAM(R)). This activity includes internal development and an array of joint efforts with academic institutions and other laboratories with a focus on two main tasks: 1) the establishment of the appropriate physical models to simulate the phenomena that are important in fires; and 2) the selection of a robust and efficient numerical scheme for fire simulations. Flame radiation, fuel pyrolysis, wall flows, water spray initiation and interaction with hot gases and burning surfaces are all currently being addressed. In part due to the fact that large-scale experiments will have to provide the basis for validation of the model predictions, much attention has been recently devoted to studies of the factors that affect test repeatability. In particular, the effect of ambient temperature and relative humidity on fire growth in cartoned commodities has been analyzed. Additional work is currently looking into methods to obtain additional information on fire behavior from the multitude of measurements typically made during a fire test. One such application is the routine extraction of heat release rate information from ceiling temperature data. Other potential developments in data analysis are also discussed in the paper.
Francesco Tamanini Louis A.Gritzo
Research Division,FM Global,USA
国际会议
2009 International Symposium on Fire Science and Fire-Protection Engineering(2009火灾科学与消防工程国际学术会议)
北京
英文
5-17
2009-10-17（万方平台首次上网日期，不代表论文的发表时间）