【摘要】 依据层流小火焰理论,在选定截尾式高斯分布作为概率密度分布函数的基础上,对函数中的两个重要参数σ和μ进行数值计算,对所得σ和μ的数值利用最小二乘法进行数据拟合,最终得到两个参数的拟合公式,即得到了概率密度分布函数的拟合公式.与数值计算所得结果相比较,拟合公式符合实际情况,具有一定的准确性.更多还原

【Abstract】 According to the theory of laminar diffusion Flamelet,the function as a type of "clipped Gauss" was used to be the probability density function(PDF). Two important parameters σ and μ were calculated to obtain PDF.In order to reduce the calculation time,σ and μ formulated with a lot of comparing and testing to derive accurate formulas.Comparing with the result of numerical calculation,the formulas were reasonable and accurate,and this is very useful to the work in the future.更多还原