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一、地下水水质模拟区水流与水质预测数学模型(一)水文地质模型的概化1、模拟区边界类型的划分1):模拟区东南部以老运河为界,用边界 L_1表示,视为定水头、定浓度补给边界,定为第一类边界;在计算中,水位与浓度采用同期(枯水期)多次测量结果之算术平均值。自县鱼种场向西北至红旗五金电镀厂一线,以边界 L_2表示,该边界为两个地下水降落漏斗之间的分水岭,并靠模拟区一侧。由于邻近分水岭,地下水仅来自分水岭微量通过其进入模拟区,故视为弱透水边界。自红旗五金电镀厂向西北至电厂宿舍一线,
First, groundwater quality simulation zone water and water quality prediction mathematical model (a) of the generalization of hydrogeological model 1, the division of boundary type of simulation area 1): southeast of the simulation area to the old canal as the boundary, with the boundary L_1 said, as The water head and the concentration supply boundary are defined as the first type of boundary. In the calculation, the water level and concentration are the arithmetic mean values of multiple measurements in the same period (dry season). From the county fish farm to the northwest to Hongqi metal electroplating factory first line, the boundary L_2 said that the boundary between the two groundwater funnel watershed watershed, and by the side of the simulation area. Because of the proximity to the watershed, groundwater flows from the watershed to the simulated area only through a small amount of water, so it is regarded as a weakly permeable boundary. Since Hongqi Electroplating Factory to the northwest to the power plant dormitory line,