船舶通道火灾一维网络模型方法

发布时间：2018-02-08 20:57

本文关键词： 船舶通道火灾一维网络模型场模型数值模拟　出处：《消防科学与技术》2017年02期 　论文类型：期刊论文

【摘要】：选取某大型货船中的典型通道构建基于FDS的场模型和基于MFIRE的一维网络模型,进行船舶通道火灾的场模拟和网络模拟。对比FDS与MFIRE的烟气运动模拟结果表明:0~360s,MFIRE不能真实反映通道内热烟气的物理特性;360~600s,通道e_1、e_2、e_3的MFIRE结果同FDS结果的流量误差为9%、64%、1%,温度误差为6%、37%、3%。MFIRE模拟所需时间不到FDS的1%。通道内烟气的温度梯度越大,MFIRE模拟结果的精度越低。对于大型船舶火灾,MFIRE适用于火灾趋于稳定的情况下,模拟远离火源区域的通道烟气蔓延情况。
[Abstract]:The field model based on FDS and the one-dimensional network model based on MFIRE are constructed by selecting the typical passage in a large cargo ship. The field simulation and network simulation of ship passage fire are carried out. The results of smoke motion simulation of FDS and MFIRE show that the physical characteristics of hot flue gas in the channel can not be truly reflected by FDS and MFIRE. The flow error of the MFIRE result of channel e1 / e2st3 and that of FDS is as high as that of FDS. The greater the temperature gradient of the flue gas in the passage, the lower the accuracy of the results of the MFIRE simulation. For large ship fires, MFIRE is suitable for large ships where the fire tends to stabilize. Simulation of flue gas spread far away from the fire source area.
【作者单位】：上海海事大学商船学院;上海海事大学海洋科学与工程学院;
【基金】：国家自然科学基金项目(51109127) 上海市自然科学基金资助项目(16ZR1414600) 上海海事大学学术创新团队基金(A2-0201150404);2016中国消防协会科学技术年会“青年消防学者论坛”交流论文
【分类号】：U698.4

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