Tag Archive: Dr Gustavo De Almeida

Mar 19

CASE STUDY: HIGH-PERFORMANCE NUMERICAL MODELS FOR LARGE SCALE FLOOD INUNDATION PROBLEMS

Alireza Shamkhalchian devoted his PhD on the computational simulation of (in particular high-scale) flood inundation problems, where the simulations are a powerful tool for the risk mapping of floods as a central part of decision-making in the field of environmental management. The motivation of his research can be described as follows. Over the past decades …

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Mar 09

CASE STUDY: IMPROVE SCOUR RISK ASSESSMENTS AT BRIDGE PIERS BY ESTIMATING EFFECTS AND HYDRODYNAMIC ACTIONS FROM ACCUMULATIONS OF WOODY DEBRIS

Diego Panici conducted his PhD through the CDT-SIS at the University of Southampton focusing on the accumulations of woody debris at bridge piers. Woody debris can exert structural forces on bridge piers, block a substantial portion of the channel causing increased flood risk, and can exacerbate scour at the pier foundation that can result in …

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Dec 24

Upscaling the shallow water equations for fast flood modelling

https://www.tandfonline.com/doi/full/10.1080/00221686.2020.1818316 Alireza Shamkhalchian &Gustavo A. M. De Almeida Received 04 Dec 2019, Accepted 19 Aug 2020, Published online: 24 Dec 2020 Journal of Hydraulic Research Abstract This paper presents a new sub-grid flood inundation model aimed at high computational performance. The model solves the two-dimensional shallow water equations (SWE) by a Godunov-type finite volume (FV) method …

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Aug 19

Upscaling the shallow water equations for fast flood modelling

Alireza Shamkhalchian and Dr Gustavo De Almeida Journal of Hydraulic Research 0022-1686 Scopus rating (2019): CiteScore 5.1 SJR 0.956 SNIP 1.966 19.08.2020 Abstract This paper presents a new sub-grid flood inundation model aimed at high computational performance. The model solves the two-dimensional shallow water equations (SWE) by a Godunov-type finite volume (FV) method that uses two nested meshes. …

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Jun 01

The influence of pier geometry and debris characteristics on the accumulation of woody debris at bridge piers

Research Article Panici, D. & De Almeida, G., Published on 1 Jun 2020, In : Journal of Hydraulic Engineering. 146, 6, 31 p. DOI 10.1061/(ASCE)HY.1943-7900.0001757 Abstract This paper analyses the influence of the geometry of bridge piers and the geometry of the supplied debris on the formation and growth of wood debris jams at bridge piers. A …

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Mar 10

A theoretical analysis of the fluid-solid interactions governing the removal of woody debris jams from cylindrical bridge piers

Research Article Panici, D. & De Almeida, G., Published on 10 Mar 2020, In : Journal of Fluid Mechanics. 886, 21 p., A19. Abstract This paper proposes a theoretical model to describe previous laboratory observations of the dynamics of debris accumulations around bridge piers of cylindrical shape. The model is based on the assumption that the observed dynamics is mainly …

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Feb 25

Developing a low-cost fish passage solution for gauging weirs

PhD Thesis Montali-Ashworth, D. (Creator), Vowles, A. (Supervisor), Kemp, P. (Supervisor), De Almeida, G. (Supervisor) Publisher: University of Southampton Faculty of Engineering and Physical Sciences, Water and Environmental Engineering Group PhD Awarded: 25 June 2020 Abstract Fluvial habitat connectivity is essential for the transfer of energy, materials and organisms along rivers. In-river barriers (such as dams and weirs) disrupt the river continuum, causing …

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Oct 18

Understanding and modelling the formation, growth, and failure of woody debris jams at bridge piers

Doctoral Thesis Experimental data for the PhD Thesis ‘Understanding and modelling the formation, growth, and failure of woody debris jams at bridge piers’ by Diego Panici – ePrints Soton Diego Panici, Supervisor: Dr Gustavo De Almeida The accumulation of large wood debris at bridge piers obstructs the flow, producing increased upstream water levels, large horizontal …

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Aug 25

Formation, Growth, and Failure of Debris Jams at Bridge Piers

Research Article Diego Panici  Gustavo A. M. de Almeida First published in Water Resources Research for American Geophysical Union AGU: 24 August 2018 https://doi.org/10.1029/2017WR022177 Abstract The accumulation of large wood debris around bridge piers obstructs the flow, producing increased upstream water levels, large horizontal structural loadings, and flow field modifications that can considerably exacerbate scour.

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Aug 31

Understanding the formation of woody debris jams at bridge piers

Conference paper Panici, D. & de Almeida, G. A. M., Water and Environmental Engineering Group Published online: 31 August 2017, Proceedings of the 37th IAHR World Congress: Managing Water for Sustainable Development, learning from the Past for the Future. Ghani, A. A. (ed.). IAHR, p. 1404-1411 Abstract Woody debris accumulations at bridge piers can significantly increase the risk …

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