一维水质模型，本程序研究一维河流的污染物扩散，短时间持续排放BOD的浓度变化规律 本程序采用中心隐式差分求解 问题t=0到t=1h偶然排放BOD 使河水断面L0=10mg/L河流平均速度5km/h 纵向弥散系数D=2km2/h BOD衰减系数k1=0.015h-1 解BOD浓度 L(x，t)-One-dimensional water quality model, the procedure of one-dimensional dispersion of pollutants in

有限差分隐格式求解一维河流水质模型，BOD沿程浓度变化(Finite difference implicit scheme for solving one-dimensional river water quality model)