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首页> 外文期刊>Mathematical Problems in Engineering >The Sensitivity of a Water Distribution System to Regional State Parameter Variations
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The Sensitivity of a Water Distribution System to Regional State Parameter Variations

机译：供水系统对区域状态参数变化的敏感性

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摘要

The sensitivity of a pressurised water distribution system (WDS) to state parameter variations is studied. A novel local regional sensitivity analysis (LRSA) approach is introduced which applies the same change to a collection of parameters, called a region. For example, sensitivity to suburbs can be studied. General analytical (using algebraic methods) results are derived. They show how sensible conclusions arise from LRSA and state this dependence of the WDS on regions for the first time. For most cases, the WDS is 1.852-2 times more sensitive to pipe roughness coefficients than to pipe lengths. In most cases, when certain pipes do not have minor losses, the WDS is 4.871-5.333 times more sensitive to pipe diameters than to pipe lengths. Hence, the WDS is the most sensitive to pipe diameters, medium sensitive to pipe roughness coefficients, and least sensitive to pipe lengths. For most cases, when all reservoir and tank elevations (and heads) remain the same, changes of other elevations do not change flow rates and change the pressures in a simple additive way. In most cases, when all the reservoir water surface elevations are changed together, the flow rates remain unchanged, and the pressures change in a simple additive way.
机译：研究了压水分配系统（WDS）对状态参数变化的敏感性。引入了一种新颖的局部区域敏感性分析（LRSA）方法，该方法将相同的更改应用于称为区域的参数集合。例如，可以研究对郊区的敏感性。得出一般分析（使用代数方法）的结果。他们展示了LRSA如何得出明智的结论，并首次阐明了WDS对区域的这种依赖性。在大多数情况下，WDS对管道粗糙度系数的敏感性是对管道长度的1.852-2倍。在大多数情况下，当某些管道损失不大时，WDS对管道直径的敏感性是对管道长度的4.871-5.333倍。因此，WDS对管道直径最敏感，对管道粗糙度系数最敏感，对管道长度最不敏感。在大多数情况下，当所有储层和储罐高度（和扬程）保持相同时，其他高度的变化不会以简单的累加方式改变流量和压力。在大多数情况下，当所有储层水面高度一起改变时，流量保持不变，并且压力以简单的累加方式改变。

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