Please login first
Luis Cea  - - - 
Top co-authors See all
Jeronimo Puertas

44 shared publications

Water and Environmental Engineering Group, Departamento de Métodos Matemáticos y de Representación; Universidade da Coruña; A Coruña Spain

Daniel Rivero

27 shared publications

Artificial Neural Networks and Adaptive Systems Laboratory (RNASA-IMEDIR), Information and Communication Technologies Department, Faculty of Informatics, University of A Coruña, A Coruña, Spain

M. Elena Vázquez-Cendon

16 shared publications

Department of Applied Mathematics, Faculty of Mathematics, University of Santiago de Compostela, Spain

Enrique Peña

14 shared publications

Port Authority of La Coruña, Av de la Marina s/n, 15001 La Coruña, Spain

L. Pena

5 shared publications

University of A Coruña. Campus de Elviña

31
Publications
0
Reads
0
Downloads
149
Citations
Publication Record
Distribution of Articles published per year 
(2004 - 2018)
Total number of journals
published in
 
24
 
Publications See all
Article 0 Reads 1 Citation Incorporating Antecedent Moisture Conditions and Intraevent Variability of Rainfall on Flood Frequency Analysis in Poorl... L. Cea, I. Fraga Published: 08 November 2018
Water Resources Research, doi: 10.1029/2018wr023194
DOI See at publisher website
Article 0 Reads 2 Citations An Accelerated Tool for Flood Modelling Based on Iber Orlando García-Feal, José González-Cao, Moncho Gómez-Gesteir... Published: 16 October 2018
Water, doi: 10.3390/w10101459
DOI See at publisher website ABS Show/hide abstract
This paper presents Iber+, a new parallel code based on the numerical model Iber for two-dimensional (2D) flood inundation modelling. The new implementation, which is coded in C++ and takes advantage of the parallelization functionalities both on CPUs (central processing units) and GPUs (graphics processing units), was validated using different benchmark cases and compared, in terms of numerical output and computational efficiency, with other well-known hydraulic software packages. Depending on the complexity of the specific test case, the new parallel implementation can achieve speedups up to two orders of magnitude when compared with the standard version. The speedup is especially remarkable for the GPU parallelization that uses Nvidia CUDA (compute unified device architecture). The efficiency is as good as the one provided by some of the most popular hydraulic models. We also present the application of Iber+ to model an extreme flash flood that took place in the Spanish Pyrenees in October 2012. The new implementation was used to simulate 24 h of real time in roughly eight minutes of computing time, while the standard version needed more than 15 h. This huge improvement in computational efficiency opens up the possibility of using the code for real-time forecasting of flood events in early-warning systems, in order to help decision making under hazardous events that need a fast intervention to deploy countermeasures.
Conference 16 Reads 0 Citations Iber as a tool to analyse flooding scenarios Orlando García-Feal, José Gonzalez-Cao, Luis Cea, Arno Forme... Published: 06 November 2017
First International Electronic Conference on the Hydrological Cycle, doi: 10.3390/chycle-2017-04841
DOI See at publisher website
Conference 13 Reads 0 Citations Preservation of the cultural heritage from floods using the numerical code Iber José Gonzalez-Cao, Orlando García-Feal, Luis Cea, Moncho Góm... Published: 06 November 2017
First International Electronic Conference on the Hydrological Cycle, doi: 10.3390/chycle-2017-04843
DOI See at publisher website
Article 0 Reads 6 Citations Quantifying local rainfall dynamics and uncertain boundary conditions into a nested regional-local flood modeling system María Bermúdez, Jeffrey C. Neal, Paul D. Bates, Gemma Coxon,... Published: 07 April 2017
Water Resources Research, doi: 10.1002/2016wr019903
DOI See at publisher website ABS Show/hide abstract
Inflow discharge and outflow stage estimates for hydraulic flood models are generally derived from river gauge data. Uncertainties in the measured inflow data and the neglect of rainfall-runoff contributions to the modeled domain downstream of the gauging locations can have a significant impact on these estimated “whole reach” inflows and consequently on flood predictions. In this study, a method to incorporate rating curve uncertainty and local rainfall-runoff dynamics into the predictions of a reach-scale flood model is proposed. The methodology is applied to the July 2007 floods of the River Severn in UK. Discharge uncertainty bounds are generated applying a nonparametric local weighted regression approach to stage-discharge measurements for two gauging stations. Measured rainfall downstream from these locations is used as input to a series of subcatchment regional hydrological model to quantify additional local inflows along the main channel. A regional simplified-physics hydraulic model is then applied to combine these contributions and generate an ensemble of discharge and water elevation time series at the boundaries of a local-scale high complexity hydraulic model. Finally, the effect of these rainfall dynamics and uncertain boundary conditions are evaluated on the local-scale model. Accurate prediction of the flood peak was obtained with the proposed method, which was only possible by resolving the additional complexity of the extreme rainfall contributions over the modeled area. The findings highlight the importance of estimating boundary condition uncertainty and local rainfall contributions for accurate prediction of river flows and inundation at regional scales.
Article 0 Reads 2 Citations Hydraulic model study of the intake-outlet of a pumped-storage hydropower plant María Bermúdez, Luis Cea, Jerónimo Puertas, André Conde, Ana... Published: 01 January 2017
Engineering Applications of Computational Fluid Mechanics, doi: 10.1080/19942060.2017.1314869
DOI See at publisher website ABS Show/hide abstract
The design of intake-outlet structures for pumped-storage hydroelectric power plants requires site-specific location and geometry studies in order to ensure their satisfactory hydraulic performance. This article presents the numerical and physical model studies conducted on the lower intake-outlet of Belesar III power station in Northwest Spain. The proposed location of this structure in a narrow reservoir and at a shallow depth is particularly challenging and required the analysis of both the near-field and far-field flow dynamics in the reservoir. First, the hydrodynamics of the reservoir were studied with a 2D shallow water model. The location of the intake was found to be suitable, with adequate flow conditions in the reservoir even for the lower operating water levels. The intake could be fed with the maximum pumping discharge without being limited by the reservoir’s hydraulics. Second, the flow in the near-field was investigated by complementary use of 3-dimensional numerical simulations and reduced-scale physical modeling. The results allowed the verification of the submergence requirements and the comparison of geometry alternatives. In comparison with the initial design, the final proposed design shows a more symmetrical approach flow into the structure during pumping mode, resulting in a more homogenous flow distribution between the openings and reduced head loss. This study can provide guidance in the application of hydraulic modeling procedures to locate and design intake-outlet structures in existing lakes or reservoirs and to evaluate potential limitations on water levels, inflows and outflows. It can be useful during planning stages of power plants to aim for the shortest possible waterways between the reservoirs while ensuring adequate flow conditions.
Top