论文部分内容阅读
为改善广州市芳村片河网水质质量并研究城市内河涌与外江之间的水体交换规律,基于Saint Venant方程组和对流扩散方程,建立了感潮河网一维水流水质数值模型,并对模型进行了率定。针对实测水质数据普遍较少的问题,引入了基于污染物相对浓度的水体交换指标,发展了一种简便有效的水环境调控评判方法,计算分析了河涌连通、水闸调度、水闸建设等措施对河网水体交换的影响,提出了芳村片引清调水的优化方案。模拟结果表明,该方法可用以制定、优化调水方案并为区域水系规划和建设提供依据。
In order to improve the quality of water quality of Fangcun sheet river network in Guangzhou and to study the law of water exchange between urban inland river valleys and outer rivers, a numerical model of one-dimensional water flow in tidal river network was established based on Saint Venant equation and convection-diffusion equation. The model was calibrated. Aiming at the problem of generally low water quality data, a water quality index based on the relative concentration of pollutants is introduced, and a simple and effective water environment regulation and control evaluation method is developed. The measures of river flow communication, sluice scheduling and sluice construction are calculated and analyzed. River network of water exchange, the proposed Fangcun piece cited clear water transfer optimization program. The simulation results show that this method can be used to develop and optimize water diversion schemes and provide the basis for the planning and construction of regional water system.