高斯烟羽模型扩散面积的算法研究

高斯烟羽模型在研究非重气云扩散方面应用越来越广泛,但是计算高斯烟羽模型扩散面积却没有特别精确有效的方法。因此对高斯烟羽模型计算扩散面积提出一种合理、科学的算法显得十分必要。本文提出了一种计算高斯烟羽模型扩散面积的算法,并介绍了该算法的理论基础和思路实现。应用该算法于工程实例中,并对结果进行验证,表明该算法方便、精确、便于应用,是计算高斯烟羽模型扩散面积的一种行之有效的算法。

The algorithm study for the dispersion area of Gaussian plume model

The application of Gaussian model has been becoming more and more widely on the study of the neutral gas cloud disper- sion,but there is not an especial,precise and effective method for calculating the dispersion area by using Gaussian plume model.So it is necessary to put forward a reasonable and scientific algorithm for calculation the dispersion area.An algorithm for the dispersion area calculation area of Gaussian plume model is put forward in the paper.The shape of the dispersion area of Gaussian plume model is considered to ellipse in the algorithm.The length of x axis and y axis is calculated in the algorithm using iterative method.Finally,the dispersion area of Gaussian plume model is educed in the algorithm.Applicating the algorithm to the dispersion of gasoline,and then comparing the result of computer calculation to manual calculation result,it is validated that poisoning or blasting consistence lower limit and manual calculating consistence relative error range from 0.30% to 1.01%.The error can be accepted on engineering.It is shown that the algorithm is a convenient,precise,available and effective with help of the engineering and validation.