I. W. M. Pothof

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All chapters are Open Access distributed under the Creative Commons Attribution 3.0 license, which allows users to download, copy and build upon published articles even for commercial purposes, as long as the author and publisher are properly credited, which ensures maximum dissemination and a wider impact of our publications. After this work has been(More)
Transient regimes may cause excessive water hammer, and possible column separation, slug flow, plug flow and fluid-structure interaction (FSI) in the system. Fluid transients may severely disturb operation of the piping system and damage the system components. This paper presents authors’ case studies of typical transient regimes in industrial and(More)
Gully pots are essential assets designed to relief the downstream system by trapping solids and attached pollutants suspended in runoff. This study applied a methodology to develop a quantitative gully pot sedimentation and blockage model. To this end, sediment bed level time series from 300 gully pots, spanning 15 months, were collected. A generalised(More)
With increasing energy costs, concern on CO<sub>2</sub> emission and growing interest in asset management, the online evaluation of pressurized wastewater systems provides an opportunity for optimizing performance. This paper describes a method that uses performance indicators (PIs) derived from monitoring data and model simulation results using an online(More)
Today's ultrafiltration processes use permeate flow reversal to remove fouling deposits on the feed side of ultrafiltration membranes. We report an as effective method: the opening and rapid closing of a valve on the permeate side of an ultrafiltration module. The sudden valve closure generates pressure fluctuations due to fluid inertia and is commonly(More)
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