12/9/2023 0 Comments Water conveyance system pdfHowever, all of these programs can acquire high-precision results for ordinary river-modelling applications but not for complex hydraulic conditions. CanalCAD, Mike11 and Sobek) were suitable for unsteady-flow simulation. Additionally, three commercially available software packages (i.e. (2007) developed a one-dimensional (1D) numerical model in a large-scale conveyance channel with complex inner boundary conditions. (2009) proposed an equivalent roughness method to simulate the effect of transportation structures in an open channel on the water level. For the Chinese south-to-north water-conveyance project, Fang et al. Many unsteady flow simulation models, such as USM, CARIMA, CANAL, DUFLOW and MODIS can be utilized to compute the conveyance progress ( ASCE 1993). Hydrodynamic numerical simulation is an appropriate means for conveyance progress decision-making. Now, this project has become a new strategic water source in Beijing. In 2008, the Beijing-Shijiazhuang emergency water supply project was completed and put into operation, and a total of 1.124 billion cubic metres of water flowed into Beijing from Hebei. Additionally, other measures must be taken to broaden sources of income, reduce expenditures, handle sewage and better utilize flood resources ( Li & Wang 2011). Thus, the south-to-north water-conveyance project is a foundational measure to solve the problem of water shortages. In addition to socioeconomic development and population increases, the shortage of water resources and deterioration of the water environment have become obstacles to sustainable socioeconomic development in Beijing ( Gan et al. Therefore, managing the city's water resources is very challenging. Currently, water resources in Beijing are overdeveloped, as evidenced by shrinking wetlands, groundwater overexploitation and inadequate ecological water. Water resource shortages are a common problem in Beijing. Currently, this system is successfully operating in Beijing. The functionality of WGCS is illustrated through two case studies on conveyance progress. WGCS represents an effective attempt to integrate large-scale hydrodynamic numerical calculations on the web. Finally, the database platform is used to record initial information, configuration parameters, hydraulic structure parameters converted to the hydrodynamic model for computation, result data received from the hydrodynamic model for analysis, attribute data and spatial data for map publishing and visualization. Furthermore, the employment of an asynchronous refresh mechanism facilitates the performance of particle motion animation. Then, a relatively lightweight Web GIS platform without expensive mature GIS packages is implemented through rendering vector map layers based on Silverlight painting technology for model setting, simulation and data visualization. First, the pipe-channel hydrodynamic model with various types of hydraulic structure (reservoir, sluice, and inverted siphon) control equations is established as the engine to simulate a variety of flow regimes and hydraulic responses for different conveyance scenarios. The development of WGCS involves three primary modules. 1.To provide support for scientific decision-making about scheduling to keep a water-conveyance project running safely in Beijing, China, a Web geographic information system (GIS)-based conveyance system (WGCS) is proposed.0.85 km High Density Polyethylene (HDPE) buried pipe, ø = 1,200 mm, free surface flow.8.15 km Fiberglass Reinforced Plastic (GRP) pipe, ø = 1,200 mm, free surface flow (the pipeline will be installed inside the completed tunnels and on top of the interconnection structures).Main pipeline conveyance made up of following stretches:.
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