100 citations · 162 across the 10 of their papers we have counts for
11 papers
Leidenfrost drop dynamics: An approach to follow the complete evolution
René Ledesma-Alonso, Benjamin Lalanne, Jesús Israel Morán-Cortés +2
A new model to follow the complete evolution of a drop in Leidenfrost state is presented in this work. The main ingredients of the phenomenon were considered, including: 1) the sha…
Effect of the density of pillar-patterned substrates on the contact mechanics: Transition from top to mixed contact with a detailed pressure-field description
Rene Ledesma-Alonso, Elie Raphael, Frederic Restagno +1
Different contact regimes between a spherical lens and a periodically patterned substrate are observed, when they are pressed against each other. Top contact occurs when only the h…
The triple Leidenfrost effect: preventing drops coalescence on a hot plate
F. Pacheco-Vazquez, J. L. Palacio-Rangel, R. Ledesma-Alonso +1
We report on the collision-coalescence dynamics of drops in Leidenfrost state using liquids with different physicochemical properties. Drops of the same liquid deposited on a hot c…
An empiric-stochastic approach, based on normalization parameters, to simulate solar irradiance
Edith Osorio de la Rosa, Guillermo Becerra Nuñez, Alfredo Omar Palafox Roca +1
The data acquisition of solar radiation in a locality is essential for the development of efficient designs of systems, whose operation is based on solar energy. This paper present…
Material phase classification by means of Support Vector Machines
Jaime Ortegon, Rene Ledesma-Alonso, Romeli Barbosa +2
The pixel's classification of images obtained from random heterogeneous materials is a relevant step to compute their physical properties, like Effective Transport Coefficients (ET…
Effect of the image resolution on the statistical descriptors of heterogeneous media
Rene Ledesma-Alonso, Romeli Barbosa, Jaime Ortegon
The characterization and reconstruction of heterogeneous materials, such as porous media and electrode materials, involve the application of image processing methods to data acquir…
Active vs. Passive Hard Disks Against a Membrane : Mechanical Pressure and Instability
G. Junot, G. Briand, R. Ledesma-Alonso +1
We experimentally study the mechanical pressure exerted by a set of respectively passive isotropic and self-propelled polar disks onto two different flexible unidimensional membran…
Van der Waals interaction between a moving nano-cylinder and a liquid thin film
René Ledesma-Alonso, Elie Raphaël, Thomas Salez +2
We study the static and dynamic interaction between a horizontal cylindrical nano-probe and a thin liquid film. The effects of the physical and geometrical parameters, with a speci…
Elastohydrodynamic wake and wave resistance
Maxence Arutkin, René Ledesma-Alonso, Thomas Salez +1
The dynamics of a thin elastic sheet lubricated by a narrow layer of liquid is relevant to various situations and length scales. In the continuity of our previous work on viscous w…
Stress concentration in periodically rough hertzian contact: Hertz to soft-flat-punch transition
Rene Ledesma-Alonso, Elie Raphael, Liliane Leger +2
We report on the elastic contact between a spherical lens and a patterned substrate, composed of an hexagonal lattice of cylindrical pillars. The stress field and the size of the c…
Wake and wave resistance on viscous thin films
René Ledesma-Alonso, Michael Benzaquen, Thomas Salez +1
The effect of an external pressure disturbance, being displaced with a constant speed along the free surface of a viscous thin film, is studied theoretically in the lubrication app…