• ISSN 0258-2724
  • CN 51-1277/U
  • EI Compendex
  • Scopus
  • Indexed by Core Journals of China, Chinese S&T Journal Citation Reports
  • Chinese S&T Journal Citation Reports
  • Chinese Science Citation Database
Volume 21 Issue 2
Apr.  2008
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Article Contents
LEI Bing, WANG Qingyuan, LIU Yingqing. Simulation of Flashover Conditions in Passenger Vehicles[J]. Journal of Southwest Jiaotong University, 2008, 21(2): 182-186.
Citation: LEI Bing, WANG Qingyuan, LIU Yingqing. Simulation of Flashover Conditions in Passenger Vehicles[J]. Journal of Southwest Jiaotong University, 2008, 21(2): 182-186.

Simulation of Flashover Conditions in Passenger Vehicles

  • Received Date: 10 Jan 2007
  • Publish Date: 25 Apr 2008
  • A flashover model of high temperature smoke layer was derived based on energy conservation functions.A catastrophe potential function,which has the same form of swallowtail catastrophe,was obtained by dimensional normalization and diffeomorphism.The relationship between system control variables and burning conditions of fires in a passenger vehicle was studied.The catastrophe bifurcation of the control variables divide a fire into flashover zone and non-flashover one.In the flashover zone,an unstable point can be obtained from the characteristic curve and differential coefficient curve of the potential function.The temperature of high temperature smoke layer for a flashover to occur is then calculated from the unstable point.A calculation case shows that the temperature of high temperature smoke layer is 898.3 K when flashover occurs in a passenger vehicle,which agrees reasonably well with experimental results.

     

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