Rodolfo Silva

Rodolfo Silva
Universidad Nacional Autónoma de México | UNAM · Institute of Engineering

PhD

About

701
Publications
235,978
Reads
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4,026
Citations
Introduction
Es Ingeniero Civil (1988), por la Escuela Nacional de Estudios Profesionales de Acatlán e Ingeniero de Caminos, Canales y Puertos en la Universidad de Cantabria, España (1995). Obtuvo el grado de Maestría en Administración de Empresas en la Universidad Chapultepec , México (1990) y Maestro en Ingeniería Oceanográfica en la Universidad de Cantabria, España (1922). En 1995 obtiene el grado de doctor en Ingeniería de Caminos, Canales y Puertos en la Universidad de Cantabria, España. Actualmente, es Investigador de Tiempo Completo en el Instituto de Ingeniería y Profesor Titular en la Facultad de Ingeniería.Durante su carrera académica, impartió el curso sobre las recomendaciones académicas para obras marítimas, en el Posgrado de la Facultad de Ingeniería de la UNAM.
Additional affiliations
November 1995 - present
Universidad Nacional Autónoma de México
Position
  • Professor (Full)

Publications

Publications (701)
Article
Full-text available
Stochastic dynamic programming (SDP) is an optimization technique used in the operation of reservoirs for many years. However, being an iterative method requiring considerable computational time, it is important to establish adequate convergence criterion for its most effective use. Based on two previous studies for the optimization of operations i...
Article
Full-text available
As the biomass of pelagic Sargassum spp. increased across the North Atlantic equatorial recirculation region from 2011 onwards, massive rafts of sargasso appeared in the Western Caribbean in 2015, 2018, 2019, and 2020. These events raised concerns regarding their negative consequences on the environment, local income, and human wellbeing. As adequa...
Article
La necesidad de incorporar a las energías renovables en la matriz energética de las naciones del mundo es un valor entendido que no requiere más justificación porque, más allá de metas locales o compromisos internacionales, de ello depende la sostenibilidad de la humanidad. En México, sin embargo, la contribución de las fuentes de energía limpias y...
Article
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The wave power in the Gulf of Mexico was analyzed, using 42 years (1979–2020) of simulated data, with ERA-5 winds to force the WAVEWATCH III wave model. The model was successfully validated with three NDBC buoys, 42,055, 42,001 and 42,002. Comparison of significant wave heights obtained from the Jason-2, Cryosat-2, and Saral satellites showed good...
Article
Full-text available
Transport networks in coastal, urban areas are extremely vulnerable to seismic events, with damage likely due to both ground motions and tsunami loading. Most existing models analyse the performance of structures under either earthquakes or tsunamis, as isolated events. This paper presents a numerical approach that captures the sequential earthquak...
Article
Full-text available
Analgesic consumption increased significantly during the COVID-19 pandemic. A high concentration of this kind of drug is discarded in the urine, reaching the effluents of rivers, lakes, and seas. These medicines have brought serious problems for the flora and, especially, the ecosystems’ fauna. This paper presents the results of removing diclofenac...
Article
Various types of green water events, generated with incident wave trains, have been identified in experimental research, but experimental analysis of their kinematics is still required to improve comparisons of analytical and numerical models. This paper presents an experimental investigation of the kinematics of consecutive green water events gene...
Article
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Wave climate is a primary driver of coastal risk, yet how climate change is altering wave climate is not fully understood. Here we identify transitional wave climate regions, coastlines with a future change in the occurrence frequency of a wave climate, with most of the regions located in south-western and eastern ocean basins. Analysis of the spat...
Article
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Comprehensive knowledge of extreme values is required for designing offshore structures and ocean current turbines. However, data on the return levels of ocean currents are rarely available. This is the case for the Mexican Caribbean, where enormous energy potential in the ocean currents has recently been detected. In this study, long-term numerica...
Article
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Wave-induced inundation in coastal zones is a serious problem for residents. Accurate prediction of wave run-up height is a complex phenomenon in coastal engineering. In this study, several machine learning (ML) models are developed to simulate wave run-up height. The developed methods are based on optimization techniques employing the group method...
Article
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In a relatively short timescale (less than 50 years), urbanization has caused many anthropogenic disturbances that have affected ecosystem health and, directly or indirectly, quality of life for the local human population. Global disturbances, such as climate change, can also have a substantial, overarching impact on ecosystems. In this scenario, n...
Article
In this work, the theoretical hydrodynamic performance of an onshore Oscillating Water Column (OWC) device, subjected to normal wave incidence, is investigated. Based on linear surface-wave theory, the full solution of the boundary value problem (BVP) is obtained by using a three-dimensional (3D) boundary element method (BEM) with nine-noded quadri...
Article
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A spatial analysis was carried out to evaluate the compatibility of human activities and biophysical characteristics in the Mexican Caribbean Sea, in order to identify the most viable areas for energy generation from ocean currents and the areas where the population would most benefit from such energy projects. Of the study area, 82% have some form...
Article
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The aim of this article is to show how an OTEC Ecopark could provide comprehensive, sustainable, and quality products that satisfy the diverse needs of coastal communities in Mexico. An offshore 60 MW hybrid Ocean Thermal Energy Conversion (OTEC) plant is proposed, which will provide products that will not only fulfil the water, energy, and food ne...
Article
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The electrical grid of the Baja California peninsula, Mexico, operates separately from the National Interconnected System, with Baja California connected to the Western Electricity Coordinating Council of the USA; and Baja California Sur having an isolated, independent network. Based on the need for alternative renewable sources of electricity gene...
Article
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The interconnections between hydrodynamics, coastal sediments, and ecosystem distribution were analysed for a ~250 km strip on the northern Mexican Caribbean coast. Ecosystems were related to the prevailing and extreme hydrodynamic conditions of two contrasting coastal environments in the study area: Cancun and Puerto Morelos. The results show that...
Article
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Most experimental research on land-fixed Oscillating Water Column (OWC) systems assume that the OWC-water wave interaction happens with waves that propagate normally towards the device. However, the angle of incidence of the waves can determine the performance of the OWC, in particular the wave period at which the device resonates. In this study, a...
Book
Full-text available
Coastal erosion is a complex process of natural and/or anthropic origin that has negative consequences associated with the loss of ecosystems, infrastructure, housing, productive land and has even caused the displacement of some communities. This process has its own genesis and evolution for each site, which depends, among others, on the local geol...
Article
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A small prototype of a 5-level single-phase full H-bridge inverter for ocean current applications is presented. The inverter was designed applying level-shift control in pulse-width modulation (LS-PWM), and experimental tests were conducted using a variety of modulation subschemes, including in-phase disposition (IPD), alternate-phase opposition–di...
Article
Full-text available
An experimental study was carried out to investigate seabed-pipeline interactions with regard to soil liquefaction. For a soil with a high proportion (30 to 60%) of fine sediment, four groups of tests were configured to reproduce soil liquefaction around pipelines for different initial pipe depths, pipe densities and wave conditions (wave height an...
Article
Full-text available
Recent research related to the evolution of different types of green water events, generated in wave flume experiments, has shown that some events, such as plunging-dam-break (PDB) and hammer-fist (HF) types, can present multiple-valued water surface elevations during formation at the bow of the structure. However, the applicability of analytical m...
Preprint
Transport networks in coastal, urban areas are extremely vulnerable to seismic events, with damage likely due to both ground motions and tsunami loading. Most existing models analyse the performance of structures under either earthquakes or tsunamis, as isolated events. This paper presents a numerical approach that captures the sequential earthquak...
Article
Sediment transport can be modelled using hydrodynamic models based on shallow water equations coupled with the sediment concentration conservation equation and the bed conservation equation. The complete system of equations is made up of the energy balance law and the Exner equations.
Article
Full-text available
In humid environments, the formation of biofilms and microfouling are known to be the detrimental processes that first occur on stainless steel surfaces. This is known as biofouling. Subsequently, the conditions created by metabolites and the activity of organisms trigger corrosion of the metal and accelerate corrosion locally, causing a deteriorat...
Data
This dataset represents in-situ bathymetry data collected in shallow waters of the Mexican Caribbean, from Cabo Catoche to Xcalak. The data were collected during seven field campaigns (2010-2016). Bathymetric surveys were carried out using the Garmin GPSmap 541s echo sounder. The information is presented in tables in ASCII format and were used as r...
Data
This collection integrates data from the project "Spatial distribution of benthic habitats in shallow water marine ecosystems of the Mexican Caribbean using WorldView-2 (ArrecifeSAM) satellite images (2010-2018)". The study area covers the shallow waters of the Yucatan Peninsula in Mexico, from Cabo Catoche to Xcalak, as part of the Mesoamerican Re...
Article
Full-text available
The recent periodic influx of massive quantities of pelagic Sargassum spp. (sargasso) into the Caribbean has posed ecological, social, and economic challenges to the region. Sustainable use of the biomass is crucial to mitigate negative impacts of beached algae. The current uses of sargasso in Mexico are reviewed, and a biorefinery approach is prop...
Article
Full-text available
In recent years, ocean current turbines have proven to be a reliable device for renewable energy generation. A crucial element of these turbines are the foundations, since they limit the displacement of the turbine, which is key in achieving efficiency in energy conversion, and can account for up to 26% of the total cost of the project. Most design...
Article
In this work, the maximum theoretical hydrodynamic efficiency of an onshore OscillatingWater Column (OWC) device is investigated in relation to the incidence angle of the wave and the configuration of the chamber. Linearized water wave theory is used, and the full solution of the associated boundary value problem(BVP) is achieved by using the simpl...
Article
Full-text available
Sargassum species-based extracts were used to carry out the synthesis of homogeneous gold nanoparticles. Various techniques were used to determine the characteristics and composition of the nanoparticles. The UV-Vis results showed that the 50% water/ethanol extract had the most reducing agents and stabilizers. Therefore, this type of extract was us...
Article
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Renewable ocean energy is an alternative that will help reduce carbon emissions into the atmosphere. However, there is uncertainty about potential environmental impacts of the technologies involved, because these are new and untested, and methods for the evaluation and monitoring of environmental impacts are scarce. We performed a systematic litera...
Article
Coastal dunes are very important, for both their ecosystem services and their ecological importance. A quantification of the area occupied by dunes was made for all of the Mexican Caribbean coast, and a qualification was assigned, according to the type of dune, its height and condition. 4981 ha of coastal dunes were identified on the coast, with he...
Article
Full-text available
The chamber configuration of an asymmetric, fixed-detached OscillatingWater Column (OWC) device was investigated theoretically to analyze its effects on hydrodynamic performance. Two-dimensional linear wave theory was used, and the solutions for the associated radiation and scattering boundary value problems (BVPs) were derived through the matched...
Article
Full-text available
Coral reefs are increasingly recognized for their shoreline protection services. The hydrodynamic performance of this ecosystem is comparable to artificial low-crested structures often used in coastal protection, whose objective is to emulate the former. Coral reefs also provide other important environmental services (e.g., food production, habitat...
Conference Paper
Full-text available
El promedio anual de la potencia del oleaje en el Golfo de México es menor de 10 kW/m, mucho menor que la correspondiente en las latitudes medias del hemisferio norte (40-60° latitud N), donde puede variar entre 30 y 90 kW/m. Las tecnologías actuales que convierten la energía del oleaje en electricidad se han desarrollado e implementado principalme...
Preprint
Full-text available
We provide a comprehensive analysis of the spatial-temporal changes in the atmospheric-driven major wave climates (easterlies, southerlies, and westerlies) under two different Representative Concentration Pathways, the RCP2.6 and RCP8.5 scenarios for the end-of-the-century (2075–2099). By comparing the projected scenarios with historical conditions...
Article
This paper extends the work of Maia and Said (“Analysis for Resistance Reduction of an Amazon School Boat through Hull Shape Modification Utilizing a CFD Tool,” 2019), proposing the optimization of a school boat hull using genetic algorithms and computational fluid dynamics (CDF) simulations. The study examines a school boat used for the transporta...
Article
Full-text available
While many coastal areas are affected by coastal squeeze, quantitative estimations of this phenomenon are still limited. Ambiguity concerning the degree of coastal squeeze, combined with a lack of knowledge on its interaction with human activities may lead to inadequate and unsuccessful management responses. The objective of the present research wa...
Article
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The impact of storms on coastal dunes and beaches and the effects they induce in topography and plant communities are natural processes that contribute to maintaining natural coastal dynamics. However, because coasts are often densely populated, these phenomena are perceived as major threats to human property. To protect human assets sustainably, n...
Article
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The oceans represent almost 70% of the surface of our planet, and they are in constant movement through waves, tides, and currents. These movements are formed differently: waves develop because of the action of the wind; tides because of the moon and the sun, and currents because of differences in water temperature and the rotation of the planet. O...
Article
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Shipping water events that propagate over the decks of marine structures can generate significant loads on them. As the configuration of the structure may affect the loading behaviour, investigation of shipping water loads in different structural conditions is required. This paper presents a numerical investigation of the effect of deck roughness a...
Article
Full-text available
This paper presents a techno-economic assessment of hydrokinetic energy of Cozumel Island, where ocean currents have been detected, but tourist activities are paramount. The main objective of this research is to identify devices that have been used to harvest hydrokinetic power elsewhere and perform an economic analysis as to their implementation i...
Article
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At present, many coastal ecosystems worldwide are highly affected by anthropic activities. La Mancha lagoon, in the state of Veracruz, Mexico, is an important ecosystem due to the wide array of ecosystem services that it provides. In this paper, an analysis of the environmental balances of the lagoon is outlined, using the Drivers, Exchanges, State...
Article
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This paper presents a multivariate classification of the global wave climate into types driven by atmospheric circulation patterns. The primary source of the net long-term variability is evaluated based on historical wave simulations. Results show that the monsoon, extratropical, subtropical, and polar wave climate types of the Pacific and North At...
Article
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Although the technologies involved in converting saline gradient energy (SGE) are rapidly developing, few studies have focused on evaluating possible environmental impacts. In this work, the environmental impacts of a hypothetical 50 kW RED plant installed in La Carbonera Lagoon, Yucatan, Mexico, are addressed. The theoretical support was taken fro...
Book
Full-text available
Este libro presenta una revisión exhaustiva de los antecedentes que mencionan métodos para el estudio, aplicaciones y beneficios de la brisa marina, con ello se busca demostrar la importancia del estudio presentado en este documento. Así la metodología que se describe pretende poder ser replicada por cualquier interesado en realizar estudios simila...
Article
Full-text available
Between 1959 and 2010, a coastline retreat of 2.4 m/year and erosion of up to 174 m were recorded around Turbo, in northern Colombia. This degraded coastal system is the result of a poorly planned coastal defence scheme, combined with a lack of formal technical methodologies for diagnosis and monitoring. The coastal system cannot provide the protec...
Article
Full-text available
This work reports, for the first time, the synthesis of silver nanoparticles using extracts of the species of Sargassum natans and Sargassum fluitans (AgNPs-S). Their antibacterial and catalytic properties are compared with silver nanoparticles obtained by chemical synthesis (AgNPs-C). The characterization of AgNPs-S and AgNPs-C was carried out usi...
Article
Full-text available
Green water events may present different features in the initial stage of interaction with the deck of a structure. It is therefore important to investigate the evolution of different types of green water, since not all the events interact with the deck at the same time. In this paper, the evolution of three types of green water events (dam-break,...
Article
Full-text available
Infrastructure is necessary to protect and provide the goods and services required by humans. As coastal green infrastructure (CGI) aims to respect and work with natural processes, it is a feasible response to mitigate or avoid the consequences of coastal squeeze. The concept of CGI is receiving increased attention of late due to the challenges fac...
Article
Full-text available
Sustainable energy is needed globally, and Ocean Thermal Energy Conversion (OTEC) is a possible way to diversify the energy matrix. This article suggests a preliminary selection process to find optimal sites for OTEC deployment on the Mexican coastline. The method comprises the (1) evaluation of the thermal power potential, using daily data (16 yea...
Article
The interaction of oblique water waves with a land-fixed Oscillating Water Column (OWC) type wave energy converter is examined. Two-dimensional linear wave theory is used to formulate the mathematical problem. The matched eigenfunction expansion method (EEM) using dual series relations and the Boundary Element Method (BEM) with quadratic elements a...
Article
Full-text available
As the operation of an ocean thermal energy conversion (OTEC) plant depends on the temperature gradient between the surface and deeper water (SST), a variation in SST can significantly modify the energy produced. The aim of this paper is to present a comparative analysis of three sea-surface temperature databases (World Ocean Atlas (WOA), Satellite...
Chapter
The Marismas Nacionales de México, located on the Pacific coast of the state of Nayarit, is a protected area, internationally recognized as a RAMSAR site. Twelve rivers pass through the reserve, producing complex fluvial and geomorphological networks, which contain an abundance of ecosystems, rich in biodiversity. While there are studies on the gen...
Book
Full-text available
Un elemento fundamental para un sistema de turbinas marinas que funcionan mediante la acción corrientes marinas es la cimentación, la cual absorbe un gran porcentaje del costo total del proyecto, en algunos casos presentándose valores de hasta el 35 %, por consiguiente, es necesario poner especial énfasis en el diseño de estas estructuras. En gener...