Power Series Approach to Holistic Sewer System Modeling |
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Authors: | Hermann J Eberl |
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Affiliation: | 1Dr., Kluyver Lab., Delft Univ. of Technol., Julianalaan 67, 2628BC Delft, The Netherlands. E-mail: h.j.eberl@stm.tudelft.nl
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Abstract: | Fast and stable mathematical models for the computation of sewer system outflow are essential for real-time control of urban storm drainage systems. This paper presents a general method to design such models based on the reservoir approach. The unknown inflow-outflow function is developed into a power series. The a priori assumptions made for this are much weaker than the ones for the well-known linear models. The resulting models are nonlinear, but they subsume some of the linear models, depending on the selection of model parameters. Thus, a more general approach to validate the frequently made linearity postulation of the outflow process is provided. The new model is tested with some subcatchments of a larger urban storm drainage network. |
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