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WANG Jin-hui, JIAO Yu, XU Tao, CHEN Wei-jiong. Field-zone coupling model of fire smoke propagation in ship cabin[J]. Journal of Traffic and Transportation Engineering, 2015, 15(2): 59-69. doi: 10.19818/j.cnki.1671-1637.2015.02.007
Citation: WANG Jin-hui, JIAO Yu, XU Tao, CHEN Wei-jiong. Field-zone coupling model of fire smoke propagation in ship cabin[J]. Journal of Traffic and Transportation Engineering, 2015, 15(2): 59-69. doi: 10.19818/j.cnki.1671-1637.2015.02.007
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Field-zone coupling model of fire smoke propagation in ship cabin

doi: 10.19818/j.cnki.1671-1637.2015.02.007

  • School of Ocean Science and Engineering, Shanghai Maritime University, Shanghai 201306, China

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  • Author Bio:

    WANG Jin-hui(1981-), male, lecturer, PhD, +86-21-38282517, wangjh@shmtu.edu.cn

  • Received Date: 2014-11-23
  • Publish Date: 2015-02-25
    Abstract
  • Aiming at the fire smoke propagation in large ship cabin, the limitations of field model FDS and zone model CFAST were analyzed.Based on the principles of energy transmission, component transformation and pressure balance, the field-zone coupling model of smoke propagation in ship cabin was developed, and the small scale experiment platform with4 temperature measuring points of ship cabin fire was set up to verify the effectiveness of the established coupling model.The simulations of fire smoke propagation in ship cabin were carried out by field model, zone model and field-zone coupling model respectively, and the simulation results of temperature and smoke layer height were compared.Analysis result shows the temperatures of 4measuring points increase with the increase of time, the measuring point near fire has higher temperature at the same time.With the increase of distance from fire, the temperature of measuring point falls, and the slight fluctuations of the temperatures at4 measuring points appear due to smoke turbulent flow.When fire burning reaches steady state, the change regular of smoke layer height can be simulated by using the models, and the simulation result by using field-zone coupling model is better than the simulation results by usingfield model and zone model.The calculation time for field-zone coupling model is about 54%less than the calculation time for field model.The simulation result by using field-zone coupling model is consist with the test result, so the field-zone coupling model has better engineering value.

     

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