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Hydroinformatics Modeling System

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The Hydroinformatics Modeling System (hms) is a Java-based modeling framework developed by the Chair of Water Resources Management and Modeling of Hydrosystems, Technische Universität Berlin, since 2004.
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Software architecture

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hms is an object-oriented scientific prototyping framework with a flexible and extendible component-based design. Information is stored in layers, whereby each layer represents a different physical process or geospatial data.

The numerics of hms are based on a cell-centered finite volume method. A robust high-order HLLC Riemann solver based scheme is used to solve the governing physical equations (Hou et al. 2013), whereby the main focus is on the depth-averaged shallow water flow and transport (dissolved components, sediments) equations.

Test cases

One-dimensional dam break
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V-catchment
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Flooding of an idealized urban catchment
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Malpasset dam break
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Spreading of a tracer in river Spree, Berlin
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Rainfall runoff simulation in alpine catchment
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Flash floods in El Gouna, Egypt
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Paper Journal of Hydroinformatics

A model for overland flow and associated processes within the Hydroinformatics Modelling System
Citation key 10.2166/hydro.2013.173
Author Simons, Franz and Busse, Tobias and Hou, Jingming and Özgen, Ilhan and Hinkelmann, Reinhard
Pages 375-391
Year 2013
ISSN 1464-7141
DOI 10.2166/hydro.2013.173
Journal Journal of Hydroinformatics
Volume 16
Number 2
Month 02
Abstract This paper presents a numerical model suitable for a broad range of surface flow problems such as overland flow, wetting and drying processes, varying flow conditions and shock waves. It is based on solution of two-dimensional fully dynamic shallow water equations using a cell-centred finite-volume method. Numerical fluxes are computed with a Harten, Lax and van Leer approximate Riemann solver with a contact wave restored. The scheme is second-order accurate in space, and a total variation diminishing method is used to avoid spurious oscillations in the solution. For extending the model to rainfall-runoff applications, infiltration is considered as a constant runoff coefficient and by the Green–Ampt model. The model is implemented in the Hydroinformatics Modelling System, an object-oriented framework that enables the implementation and simulation of single and multiple processes in different spatial and temporal resolutions, as well as their interactions. The capabilities of the model are shown by comparison with analytical solutions and experimental data of a flash flood and a surface runoff experiment. Finally, a real rainfall-runoff event in a small alpine catchment is investigated. Overall, good agreement of numerical and analytical results, as well as measurements, has been obtained.
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