鄱阳湖三维水质模拟软件设计与仿真

随着鄱阳湖生态经济区建设的推进,鄱阳湖水环境保护问题引起了各方高度关注。通过建立水质数学模型,用计算机进行模型求解、模拟和预测,以及设计相应的水质模拟仿真软件来进行水污染扩散仿真,是水污染控制和水环境管理的有效手段。鉴于国外三维水质数据模拟软件价格高、使用受限以及鄱阳湖三维水质数据模拟的特定应用研究需求,利用软件工程的结构化方法和图形可视化技术,设计了一个面向鄱阳湖三维水质数据模拟和分析的软件工具WSAT/H3D-PYH。通过使用该软件进行BOD和DO扩散模拟和趋势预测实验表明,软件具有较好的预测精度,并能以可视化形式直观分析和预测未来一段时间湖区水质浓度的变化趋势。此外,软件还可对局部点污染源扩散进行动态模拟,以便于对突发污染事件可能造成的后果进行提前的估计,为后续治理方案措施的制定提供很好的依据。

Design and simulation of three-dimensional water quality simulation software for Poyang Lake

With the development of the Poyang Lake Ecological Economic Zone,the problem of water environmental protection for Poyang Lake caused great concern.By mathematically modeling the water quality,and using the computer to obtain the model solution,water quality simulation or prediction,we could design the corresponding water quality simulation software to simulate the diffusion of sewage,which is an effective means of water pollution control and water environment management of Poyang Lake.Because of several reasons,such as the extortionate price,the restricted usage of the foreign three-dimensional water quality simulation software and the specific applied research needs for the three-dimensional water quality simulation of Poyang Lake,it designed the WSAT/H3D-PYH,a software tool to simulate and analyze the three-dimensional water quality of Poyang Lake.The structured development methodology of software engineering and the graphical visualization techniques were employed in this software.The experiments of BOD and DO dispersion simulation and trend prediction based on the software tool indicated that there was good prediction accuracy,and the water quality trends of the future period of time could be analyzed and predicted visually.Meanwhile,the tool could execute the dynamic simulation for the pollution dispersion of the local point sources of pollution,which should facilitate to estimate the aftereffect for the unexpected pollution events in advance,and provide an excellent basis for setting down a sound follow-up treatment measures.