判定地下水二维水动力弥散参数的直线图解法  

THE LINEAR GRAPHIC METHOD FOR DISCRIMINATING TWO DIMENSIONAL HYDRODYNAMIC DISPERSION PARAMETER OF UNDERGROUND WATER

作　　者：吴耀国[1] 田春声[2] 李云峰[2] 

机构地区：[1]中国地质大学环科系 [2]西安地质学院水工系

出　　处：《煤田地质与勘探》1997年第2期31-33,共3页Coal Geology & Exploration

摘　　要：弥散参数的求得，是正确认识地下水污染运移及对其控制的前提。本文根据极值理论和非线性方程线性化手段，导出了浓度和时间变化的线性关系，得出了确定弥散参数的直线图解法。它可以弥补其他方法的不足。借用实际弥散试验资料对其进行了检验，表明所建数学模型与实际模型之间吻合良好，即所求得的参数结果可信。The finding of dispersion parameter is a prerequisite to recognize correctly the pollutant migration of underground water and its control.Based on the extremun theory and linearisation of nonlinear equation,the linear relationship between concentration and time variation is deduced,the linear graphic method used to discriminate the dispersion parameter is obtained.It can remedy the insufficiency of other methods.It is checked with the help of practical dispersion test data and is indicated that the established mathematical model is coincided better with the practical model,that is,the obtained parameter is confident.

关 键 词：地下水 水动力 弥散系数 图解法 

分 类 号：P641.2[天文地球—地质矿产勘探]