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Water 2015, 7(2), 568-591; doi:10.3390/w7020568

Modelling the Hydraulic Behaviour of Growing Media with the Explicit Finite Volume Solution

Department of Civil Engineering, University of Calabria, Cubo 42B, Rende (CS) 87036, Italy
These authors contributed equally to this work.
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Author to whom correspondence should be addressed.
Academic Editor: Ataur Rahman
Received: 1 December 2014 / Revised: 16 January 2015 / Accepted: 22 January 2015 / Published: 6 February 2015
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Abstract

The increasing imperviousness of urban areas reduces the infiltration and evapotranspiration capacity of urban catchments and results in increased runoff. In the last few decades, several solutions and techniques have been proposed to prevent such impacts by restoring the hydrological cycle. A limiting factor in spreading the use of such systems is the lack of proper modelling tools for design, especially for the infiltration processes in a growing medium. In this research, a physically-based model, employing the explicit Finite Volume Method (FVM), is proposed for modelling infiltration into growing media. The model solves a modified version of the Richards equation using a formulation which takes into account the main characteristics of green infrastructure substrates. The proposed model was verified against the HYDRUS-1D software and the comparison of results confirmed the suitability of the proposed model for correctly describing the hydraulic behaviour of soil substrates. View Full-Text
Keywords: green infrastructures; green roofs; growing substrates; modelling; percolation green infrastructures; green roofs; growing substrates; modelling; percolation
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Carbone, M.; Brunetti, G.; Piro, P. Modelling the Hydraulic Behaviour of Growing Media with the Explicit Finite Volume Solution. Water 2015, 7, 568-591.

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