随机选取法计算化学反应流爆轰过程引起的参数涨落

PARAMETER FLUCTUATION OF DETONATION IN CHEMICAL FLOW BY RANDOM CHOICE METHOD

利用ＲＣＭ（随机选取法）解反应流爆轰问题时，掌握影响流动参数随机涨落的主要因素是选择适当计算参数、保证得到正确结果的关键。各种流动参数的随机涨落相互关联，只需要搞清楚炸药未反应质量分数的随机涨落并做出分析，其它流动参数涨落的情况也就清楚了。给出了影响未反应质量分数涨落的因数，同时还给出了具体算例，检验所得结论的正确性。

The computational result RCM(Random Choice Method)may be spurious because of large fluctuations of the parameters,so to grasp the factors effecting the random fluctuations is the key of selecting computational parameters to obtain correct results.The fluctuations of diffrent parameters are interrelated,so far as such factor of the random fluctuation of mass fraction of unburnt explosive is grasped,the flutuations of other parameters can be understood.In this paper,the factors effecting the fluctuation of mass fraction of unburnt explosive and the computation examples verifing the conclusions are presented.