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首页> 外文期刊>Flow Measurement and Instrumentation >Assessment of the overflow discharge in complex CSO chambers with water level measurements - On-site validation of a CFD-based methodology
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Assessment of the overflow discharge in complex CSO chambers with water level measurements - On-site validation of a CFD-based methodology

机译：使用水位测量评估复杂CSO腔室中的溢流排放-基于CFD的方法的现场验证

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摘要

Combined sewer overflows (CSO) often present complex geometries and variable hydraulic conditions that do not fit any standards and make it tough to measure their discharge. A CFD-based methodology to assess the overflow discharge and the related uncertainties using measurements of the water depth in sewage networks, and especially in non-standard CSOs, has therefore been developed. This methodology presents several advantages: it includes the optimization of the sensor location, integrates the boundary conditions variability and calculates the global uncertainty related to the chosen height-discharge relationship. Moreover, the final instrumentation requires little maintenance and can be secured. This particular study focuses on a one-site validation of this methodology through the example of "Herbet" CSO, one of the biggest of Clermont-Ferrand's sewer network, FRANCE (up to 4 m~3/s). This article also aims learning by feedback from the on-site measurements and defining a method to validate the acquired data. It is particularly interesting to secure the measurement and detect a possible drift in a sensor in real-time.
机译：合并的下水道溢流（CSO）通常具有复杂的几何形状和可变的水力状况，无法满足任何标准，因此很难测量其排放量。因此，已经开发出一种基于CFD的方法来评估溢流流量和相关的不确定性，该方法使用污水网络（尤其是非标准CSO）中水深的测量值。这种方法具有几个优点：它包括传感器位置的优化，积分边界条件的可变性以及计算与所选高度-放电关系有关的全局不确定性。此外，最终的仪器几乎不需要维护，并且可以固定。这项特殊研究的重点是通过“赫贝特”公民社会组织的实例对这种方法进行一次现场验证，该组织是法国克莱蒙费朗最大的下水道网络之一（最高4 m〜3 / s）。本文还旨在通过现场测量的反馈来学习，并定义一种验证所采集数据的方法。确保测量并实时检测传感器中可能存在的漂移特别有趣。

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