TEP209 - Artículoshttps://hdl.handle.net/10481/322182026-04-20T07:33:35Z2026-04-20T07:33:35ZEffect of wind conditions on the performance of an Oscillating Water Column energy converterMolina Salas, ÁngelClavero Gilabert, MaríaMoñino Ferrando, Antoniohttps://hdl.handle.net/10481/927962025-10-09T06:42:15ZEffect of wind conditions on the performance of an Oscillating Water Column energy converter
Molina Salas, Ángel; Clavero Gilabert, María; Moñino Ferrando, Antonio
Method to assess the interplay of slope, relative water depth, wave steepness, and sea state persistence in the progression of damage to the rock layer over impermeable dikesLosada Rodríguez, Miguel Ángelhttps://hdl.handle.net/10481/804622023-03-08T08:15:42ZMethod to assess the interplay of slope, relative water depth, wave steepness, and sea state persistence in the progression of damage to the rock layer over impermeable dikes
Losada Rodríguez, Miguel Ángel
The objective of this research was to develop a new methodology to assess the progression of damage to sloped
coastal structures such as revetments, dikes, and mound breakwaters by applying dimensional analysis. The
adequacy of the derived functional relationship was verified with the same experimental data (rock layer over
impermeable dikes under irregular waves and four dike slopes) originally used to obtain the Van de Meer stability
formula. The method addresses the epistemic uncertainty of the damage evolution model and its dependence
on the experimental design and technique, the non-dimensional incident sea-state characteristics at the
foot of the slope, relative water depth, relative wave height, wave steepness, sea-state persistence, and number of
waves. It is specific to each dike slope. Specifically, the scarcity of experimental data in shallow water conditions
are considered. Accordingly, the sigmoid function is proposed as an alternate model to quantify the progression.
In the current state of knowledge, it is uncertain how the formulas based on lab-experiments perform for realworld
design conditions. More research in the form of further test series is thus necessary to explore this new
approach in greater depth.
German to Spanish translation of Einstein’s work on the formation of meanders in riversPadilla, Enrique M.Emberger, Birgit L.Díez Minguito, Manuelhttps://hdl.handle.net/10481/786192022-12-22T11:35:23ZGerman to Spanish translation of Einstein’s work on the formation of meanders in rivers
Padilla, Enrique M.; Emberger, Birgit L.; Díez Minguito, Manuel
In 1926 Albert Einstein gave a clear explanation of the physical processes involved in the meander formation and evolution in open channels (Einstein, 1926). Although this work is far from being recognized as one of his greatest achievements, such as his annus mirabilis papers in 1905, he shows a truly remarkable didactic skills that make it easy to understand even to the non- specialist. In particular, a brilliant explanation of the tea leaf paradox can be found in this paper of 1926, presented as a simple experiment for clarifying the role of Earth rotation and flow curvature in the differential river banks erosion. This work deserves to be considered as a pioneering work that has laid a basic knowledge in currently very active research fields in fluvial geomorphology, estuarine physics, and hydraulic engineering. In response to the curiosity aroused and transmitted to the authors over the years by undergraduates and MSc. students, and also due to its historical and scientific significance, we present here the Spanish translation of Einstein’s original work published in German in 1926 in Die Naturwissenschaften (Einstein, 1926). Einstein’s drawings have not been interpreted, but just updated preserving their original spirit.