Latest Discoveries

Results 16 to 17 of 17.

  • Mulit

    Benchmarking a multiresolution discontinuous Galerkin shallow water model

    Authors: D. Caviedes-Voullième, G. Kesserwani.

    This paper aims to validate a new interdisciplinary theory in the flood modelling context, to address contemporary problems in computational hydraulics.

    It has built upon the collaborative work undertaken with mathematician RWTH Aachen (during a DAAD visiting fellowship A-13-72-005), and was preceded by two computational journal paper (J. Comput. Phys., 301, 265–288; Comput. Methods Appl. Mech. Engrg., 294, 56–71).

    It provides a leap forward to jointly address the inevitable trade-off between modelling accuracy and efficiency, while comprehensively accommodating the multiplicity, variability and inter-connectivity of the physical-length scales involved in flooding across large domains.

    This article is located on a different website.

  • Leaky pipes

    Experimental Quantification of Contaminant Ingress into a Buried Leaking Pipe during Transient Event

    Authors: S. Fox, W. Shepherd, R. Collins, J. Boxall.

    It has been hypothesized that negative pressures caused by transients within water distribution systems may result in ingress of contaminated groundwater through leaks and hence pose a risk to public health.

    This paper presents results of contaminant ingress experiments from a novel laboratory facility at The University of Sheffield. An engineered leak surrounded by porous media was subjected to pressure transients resulting from the rapid closure of an upstream valve. It has been shown that a pollutant originating externally was drawn in and transported to the end of the pipe loop. This paper thus presents the first fully representative results proving the occurrence and hence, risk to potable water quality of contaminant ingress. 

    This paper was picked up widely by the mainstream media and helped to bring to wider public attention the risks of contamination in water supply systems.

    This article is located on a different website.