Data

NameGañán-Calvo, Alfonso M.
DepartmentIngeniería Aeroespacial y Mecánica de Fluidos
Knowledge areaMecánica de Fluidos
Professional categoryCatedrático de Universidad
E-mailRequest
           

  Statistics

  • Items

    81

  • Visits

    7094

  • Downloads

    10319

  Publications

 

Article
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On the physics of transient ejection from bubble bursting

Gañán-Calvo, Alfonso M.; López-Herrera Sánchez, José María (Cambridge University Press, 2021-12-01)
Using a dynamical scaling analysis of the flow variables and their evolution due to bubble bursting, here we predict the ...
PhD Thesis
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Study of the production of drops and their impact on surfaces. Application to the development of an additive manufacturing technique for metals

Gañán-Calvo, Alfonso M.; Montanero Fernández, José María; Muñoz Sánchez, Beatriz Natividad (2021-09-01)
Drops are constantlyand spontaneouslyproduced in nature, but varied industrial fields (such as biotechnology, chemical ...
Article
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Transonic flow focusing: stability analysis and jet diameter

Rubio, M.; Rubio, A.; Cabezas, M. G.; Herrada Gutiérrez, Miguel Ángel; Gañán-Calvo, Alfonso M.; Montanero, J. M. (Elsevier Ltd, 2021-01-01)
We study numerically and experimentally the stability of the transonic flow focusing used in serial femtosecond crystallography ...
Article
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Electrical Conductivity of a Stretching Viscoelastic Filament

Rubio, Manuel; Sadek, Samir; Vega, Emilio J.; Gañán-Calvo, Alfonso M.; Montanero, J. M. (MDPI, 2021-01-01)
Long polymeric chains highly stretched and aligned with the flow confer a strong mechanical anisotropy on a viscoelastic ...
Article
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On the ejection of filaments of polymer solutions triggered by a micrometer-scale mixing mechanism

Marín Brenes, Fernando; Olmedo Pradas, Jesús; Gañán-Calvo, Alfonso M.; Modesto-López, Luis B. (MDPI, 2021-01-01)
Polymer filaments constitute precursor materials of so-called fiber mats, ubiquitous structures across cutting-edge ...
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Self-similar electrohydrodynamic solutions in multiple coaxial Taylor cones

Gañán-Calvo, Alfonso M.; Montanero Fernández, José María (2021-01-01)
We calculate analytically the self-similar Stokes flow driven by an externally applied electric field in a multiple coaxial ...
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Diameter and charge of the first droplet emitted in electrospray

Rubio, M.; Sadek, S. H.; Gañán-Calvo, Alfonso M.; Montanero Fernández, José María (American Institute of Physics Inc., 2021-01-01)
The first droplet produced by a low-conductivity pendant/sessile droplet subject to a strong electric field is particularly ...
Article
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Effect of an axial electric field on the breakup of a leaky-dielectric liquid filament

Rubio, M.; Ponce-Torres, Alberto; Herrada Gutiérrez, Miguel Ángel; Gañán-Calvo, Alfonso M.; Montanero, J. M. (American Institute of Physics Inc., 2021-01-01)
We study experimentally and numerically the thinning of Newtonian leaky-dielectric filaments subjected to an axial electric ...
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Dripping, jetting and tip streaming

Montanero Fernández, José María; Gañán-Calvo, Alfonso M. (Institute of Physics Publishing, 2020-01-01)
Dripping, jetting and tip streaming have been studied up to a certain point separately by both fluid mechanics and ...
PhD Thesis
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Forcing microbubbles in microfluidics

Castro Hernández, Elena De; Gañán-Calvo, Alfonso M.; Arcos González Turmo, Irene de (2019-06-11)
The present thesis is a compilation of three studies in the field of microfluidic, more concretely, the generation of ...
PhD Thesis
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Micro/nano liquid ejection via electrohydrodynamic fields and gaseous streams. Application in structural biology with xfel

Gañán-Calvo, Alfonso M.; Montanero Fernández, José María; Cruz-Mazo, Francisco (2019-06-11)
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Flow Blurring-Enabled Production of Polymer Filaments from Poly(ethylene oxide) Solutions

Modesto-López, Luis B.; Pérez-Arjona, Agustín; Gañán-Calvo, Alfonso M. (ACS Publications, 2019-02-01)
Flow blurring (FB) atomizers are relatively simple yet robust devices used for the generation of sprays from solutions of ...
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Aerodynamically stabilized Taylor cone jets

Cruz-Mazo, Francisco; Wiedorn, Max O.; Herrada Gutiérrez, Miguel Ángel; Bajt, Sasa; Chapman, H. N.; Gañán-Calvo, Alfonso M. (American Physical Society, 2019-01-01)
We introduce a way to produce steady micro/nano-liquid jets via electrohydrodynamic elds together with co- owing gas ...
Final Degree Project
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Sistema de Producción de Nanopartículas por Nebulización Neumática en el Entorno del Punto Crítico. Desarrollo y Escalado.

Gañán-Calvo, Alfonso M.; Zayas Martín, Miguel Ángel (2019-01-01)
Este proyecto es la continuación natural de nuestro Trabajo de Fin de Grado, en el cual ensamblamos, añadimos electrónica ...
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Scaling Laws of an Exploding Liquid Column under an Intense Ultrashort X-Ray Pulse

Gañán-Calvo, Alfonso M. (American Physical Society (APS), 2019-01-01)
A general formulation of the partial destruction of a liquid object in vacuum after the sudden deposition of a very large ...
Article
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Evaluation of serial crystallographic structure determination within megahertz pulse trains

Yefanov, Oleksandr; Oberthür, Dominik; Bean, Richard; Wiedorn, Max O.; Knoska, Juraj; Pena, Gisel; Awel, Salah; Domaracky, Martin; Sarrou, Iosifina; Lourdu Xavier, P.; Metz, Markus; Bajt, Saša; Mariani, Valerio; Gevorkov, Yaroslav; White, Thomas A.; Tolstikova, Aleksandra; Villanueva-Pérez, Pablo; Seuring, Carolin; Aplin, Steve; Estillore, Armando D.; Küpper, Jochen; Klyuev, Alexander; Kuhn, Manuela; Laurus, Torsten; Graafsma, Heinz; Monteiro, Diana C. F.; Trebbin, Martin; Maia, Filipe R. N. C.; Cruz-Mazo, Francisco; Gañán-Calvo, Alfonso M. (American Crystallographic Association, 2019-01-01)
The new European X-ray Free-Electron Laser (European XFEL) is the first X-ray free-electron laser capable of delivering ...
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Nanometre-sized droplets from a gas dynamic virtual nozzle

Mühlig, Kerstin; Gañán-Calvo, Alfonso M.; Andreasson, Jakob; Larsson, D.S.D; Hajdua, Janos; Svenda, Martin (International Union of Crystallography, 2019-01-01)
This paper reports on improved techniques to create and characterize nanometre-sized droplets from dilute aqueous solutions ...
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Emergence of supercontraction in regenerated silkworm (Bombyx mori) silk fibers

Pérez-Rigueiro, José; Madurga, Rodrigo; Gañán-Calvo, Alfonso M.; Elices, Manuel; Guinea Tortuero, Gustavo Victor; Tasei, Yugo; Nishimura, Akio; Matsuda, Hironori; Asakura, Tetsuo (Nature Publishing Group, 2019-01-01)
The conditions required for the emergence of supercontraction in regenerated silkworm (Bombyx mori) silk fibers are assessed ...
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Production of regenerated silkworm silk fibers from aqueous dopes through straining flow spinning

Madurga, Rodrigo; Gañán-Calvo, Alfonso M.; Mariscal, Triana; Plaza Gustavo, R.; Guinea Tortuero, Gustavo Victor; Elices, Manuel; Pérez-Rigueiro, José (SAGE Publications Ltd, 2019-01-01)
The possibility of spinning regenerated silkworm (Bombyx mori) fibers from a range of aqueous dopes by using a biomimetic ...
Presentation
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The natural breakup length of a steady capillary jet

Gañán-Calvo, Alfonso M.; Chapman, H. N.; Heyman, Michael; Wiedorn, Max O.; Knoska, Juraj; Du, Yang; Gañán Riesco, Braulio; Herrada Gutiérrez, Miguel Ángel; López-Herrera Sánchez, José María; Cruz-Mazo, Francisco; Bajt, Saša; Montanero, J. M. (Bulletin of the American Physical Society, 2019-01-01)
Despite their fundamental and applied importance, a general model to predict the natural breakup length of steady capillary ...
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Flow blurring atomization of Poly(ethylene oxide) solutions below the coil overlap concentration

Hermosín-Reyes, Miguel; Gañán-Calvo, Alfonso M.; Modesto-López, Luis B. (Elsevier, 2019-01-01)
Atomization of polymer solutions has important technological implications across many fields. Here, we investigated the ...
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Risk stratifiers for arrhythmic and non-arrhythmic mortality after acute myocardial infarction

Gañán-Calvo, Alfonso M.; Hnatkova, K.; Romero-Calvo, Álvaro; Fajardo-López, Juan; Malik, M. (Nature Publishing Group, 2018-12-01)
The effective discrimination between patients at risk of Arrhythmic Mortality (AM) and Non-Arrhythmic Mortality (NAM) ...
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Megahertz serial crystallography

Wiedorn, Max O.; Oberthür, Dominik; Bean, Richard; Cruz-Mazo, Francisco; Gañán-Calvo, Alfonso M. (Nature Publishing, 2018-10-01)
The new European X-ray Free-Electron Laser is the first X-ray free-electron laser capable of delivering X-ray pulses with ...
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Straining Flow Spinning of Artificial Silk Fibers: A Review

Pérez-Rigueiro, José; Madurga, Rodrigo; Gañán-Calvo, Alfonso M.; Plaza, Gustavo R.; Elices, Manuel; López, Patricia A.; Daza, Rafael; González-Nieto, Daniel; Guinea, Gustavo V (MDPI, 2018-10-01)
This work summarizes the main principles and some of the most significant results of straining flow spinning (SFS), a ...
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Controlled cavity collapse: scaling laws of drop formation

Said Mohamed Ismail, Ahmed; Gañán-Calvo, Alfonso M.; Castrejón-Pita, José Rafael; Herrada Gutiérrez, Miguel Ángel; Castrejón-Pita, Alfonso A. (Royal Society of Chemistry (RSC), 2018-09-01)
The formation of transient cavities at liquid interfaces occurs in an immense variety of natural processes, among which ...
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Rapid sample delivery for megahertz serial crystallography at X-ray FELs

Wiedorn, Max O.; Awel, Salah; Morgan, Andrew J.; Ayyer, Kartik; Gevorkov, Yaroslav; Cruz-Mazo, Francisco; Gañán-Calvo, Alfonso M. (International Union of Crystallography, 2018-01-01)
Liquid microjets are a common means of delivering protein crystals to the focus of X-ray free-electron lasers (FELs) for ...
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Pressure-Driven Filling of Closed-End Microchannel: Realization of Comb-Shaped Transducers for Acoustofluidics

Guo, Wei; Teo, Adrian J. T.; Gañán-Calvo, Alfonso M.; Song, Chaolong; Nguyen, Nam-Trung; Xi, Heng-Dong; Tan, Say Hwa (American Physical Society, 2018-01-01)
We demonstrate the complete filling of both deionized water (DI water) and liquid metal (eutectic gallium-indium, EGaIn) ...
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Visualization and size-measurement of droplets generated by Flow Blurring® in a high-pressure environment

Modesto-López, Luis B.; Gañán-Calvo, Alfonso M. (Taylor & Francis, 2018-01-01)
Flow Blurring® (FB) atomization is a highly efficient method to produce aerosols. It originates from an unexpected turbulent ...
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Gañán-Calvo replies

Gañán-Calvo, Alfonso M. (American Physical Society (APS), 2018-01-01)
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Pressure-driven filling of liquid metal in closed-end microchannels

Gañán-Calvo, Alfonso M.; Guo, Wei; Xi, Heng-Dong; Teo, Adrian J. T.; Nguyen, Nam‑Trung; Tan, Say Hwa (American Physical Society, 2018-01-01)
We observe unsteady flow behavior of liquid metal during a pressure-driven injection process into a closed-ended ...
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Scaling laws of top jet drop size and speed from bubble bursting including gravity and inviscid limit

Gañán-Calvo, Alfonso M.;  (American Physical Society (APS), 2018-01-01)
Jet droplets from bubble bursting are determined by a limited parametrical space: the liquid properties (surface tension, ...
Final Degree Project
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Determinación experimental de la carga eléctrica transportada por las primeras gotas emitidas en la formación de un cono de Taylor

Gañán-Calvo, Alfonso M.; Morales Gonzáles, Gabriela (2017-01-01)
El cono-chorro de Taylor es un modo o configuración geométrica de electrospray, en el que la entrefase de la gota generadora ...
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Effectiveness of flossing loops in the control of the gingival health

Azcarate-Velázquez, Francisco; Garrido Serrano, Roberto; Castillo Dalí, Gabriel; Serrera Figallo, María de los Ángeles; Gañán-Calvo, Alfonso M.; Torres-Lagares, Daniel (Medicina Oral Sl, 2017-01-01)
Background: One of the key factor in the good condition of periodontal tissues is their daily hygiene. Oral hygiene techniques ...
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Revision of Bubble Bursting: Universal Scaling Laws of Top Jet Drop Size and Speed

Gañán-Calvo, Alfonso M. (American Physical Society (APS), 2017-01-01)
The collapse of a bubble of radius Ro at the surface of a liquid generating a liquid jet and a subsequent first drop of ...
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The onset of electrospray: the universal scaling laws of the first ejection

Gañán-Calvo, Alfonso M.; López-Herrera Sánchez, José María; Rebollo Muñoz, N.; Montanero Fernández, José María (Nature Publishing Group, 2016-01-01)
The disintegration of liquid drops with low electrical conductivity and subject to an electric field is investigated both ...
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Universal structures of normal and pathological heart rate variability

Gañán-Calvo, Alfonso M.; Fajardo-López, Juan (Nature Publishing Group, 2016-01-01)
The circulatory system of living organisms is an autonomous mechanical system softly tuned with the respiratory system, ...
Final Degree Project
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Development and testing of a quantitative heat flux estimation method for geographical surfaces. Application to the Urban Heat Island Effect

Gañán-Calvo, Alfonso M.; Romero-Calvo, Álvaro (2016-01-01)
The purpose of this project is the development and testing of a new geographical surface heat exchange measurement technique. ...
Final Degree Project
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Caracterización de micro-bombas para aplicaciones biomédicas. I Caracterización experimental y simulación numérica

Gañán-Calvo, Alfonso M.; Rodríguez Fernández, Alberto (2016-01-01)
El objetivo del proyecto es la caracterización completa de una serie de tecnologías de micro-bombeo de fluidos, obtener ...
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Monosized dripping mode of axisymmetric flow focusing

Cruz-Mazo, Francisco; Montanero, J. M.; Gañán-Calvo, Alfonso M. (American Physical Society (APS), 2016-01-01)
We identify and analyze the perfectly regular dripping mode of flow focusing. This mode occurs within narrow intervals of ...
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Active droplet generation in microfluidics

Chong, Zhuang Zhi; Tan, Say Hwa; Gañán-Calvo, Alfonso M.; Tor, Shu Beng; Loh, Ngiap Hiang; Nguyen, Nam-Trung (Royal Society of Chemistry, 2016-01-01)
The reliable generation of micron-sized droplets is an important process for various applications in droplet-based ...
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Automated droplet measurement (ADM): an enhanced video processing software for rapid droplet measurements

Chong, Zhuang Zhi; Tor, Shu Beng; Gañán-Calvo, Alfonso M.; Chong, Zhuang Jie; Loh, Ngiap Hiang; Nguyen, Nam‑Trung; Tan, Say Hwa (Springer Verlag, 2016-01-01)
This paper identifies and addresses the bottlenecks that hamper the currently available software to perform in situ ...
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The production of viscoelastic capillary jets with gaseous flow focusing

Ponce-Torres, Alberto; Montanero, J. M.; Vega, Emilio J.; Gañán-Calvo, Alfonso M. (Elsevier, 2016-01-01)
The production of viscoelastic capillary jets with gaseous flow focusing is studied experimentally. In this technique, the ...
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Acoustofluidic control of bubble size in microfluidic flow-focusing configuration

Chong, Zhuang Zhi; Tor, Shu Beng; Loh, Ngiap Hiang; Wong, Teck Neng; Gañán-Calvo, Alfonso M.; Tan, Say Hwa; Nguyen, Nam-Trung (Royal Society of Chemistry, 2015-01-01)
This paper reports a method to control the bubble size generated in a microfluidic flow-focusing configuration. With an ...
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Electrokinetic effects in the breakup of electrified jets: A Volume-Of-Fluid numerical study

López-Herrera Sánchez, José María; Gañán-Calvo, Alfonso M.; Popinet, S.; Herrada Gutiérrez, Miguel Ángel (Elsevier, 2015-01-01)
The breakup of a charged liquid column is studied numerically using Volume-OF-Fluid (VOF) for a range of timescales where ...
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Spider silk gut: Development and characterization of a novel strong spider silk fiber

Jiang, P.; Marí-Buyé, N.; Madurga, Rodrigo; Arroyo-Hernández, M.; Solanas, C.; Gañán-Calvo, Alfonso M.; Daza, Rafael; Plaza, Gustavo R.; Guinea, Gustavo V. (Nature Publishing Group, 2014-01-01)
Spider silk fibers were produced through an alternative processing route that differs widely from natural spinning. The ...
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The minimum or natural rate of flow and droplet size ejected by Taylor cone-jets: physical symmetries and scaling laws

Gañán-Calvo, Alfonso M.; Rebollo Muñoz, N.; Montanero Fernández, José María (2013-01-01)
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A new flow focusing technique to produce very thin jets

Acero, A. J.; Rebollo Muñoz, N.; Montanero, J. M.; Gañán-Calvo, Alfonso M.; Vega, Emilio J. (IOP Publishing Ltd, 2013-01-01)
A new technique is proposed in this paper to produce jets, droplets, and emulsions with sizes ranging from tens of microns ...
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Absolute and convective instability of a charged viscoelastic liquid jet

Li, Fang; Gañán-Calvo, Alfonso M.; López-Herrera Sánchez, José María; Yin, X. Y.; Yin, X. Z. (Elsevier, 2013-01-01)
The absolute and convective instability of an electrically charged viscoelastic liquid jet is studied. The liquid is assumed ...
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Electro-hydrodynamic generation of monodisperse nanoparticles in the sub-10 nm size range from strongly electrolytic salt solutions: governing parameters of scaling laws

Maiber, Anne; Attoui, M. B.; Gañán-Calvo, Alfonso M.; Szymanski, W.W. (Kluwer Academic Publishers, 2013-01-01)
A charge reduced electro-hydrodynamic atomization (EHDA) device has been used to generate airborne salt clusters in the ...
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On the use of hypodermic needles in electrospray

Rebollo Muñoz, N.; Montanero, J. M.; Gañán-Calvo, Alfonso M. (EDP Sciences, 2013-01-01)
We present an experimental analysis of electrospray where the standard feeding capillary was re placed with a hypodermic ...
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Enhancement of the stability of the flow focusing technique for low-viscosity liquids

Acero, A. J.; Montanero, J. M.; Ferrera, C.; Herrada Gutiérrez, Miguel Ángel; Gañán-Calvo, Alfonso M. (IOP Publishing, 2012-01-01)
We propose a modified flow focusing configuration to produce low-viscosity microjets at much smaller flow rates than those ...
Article
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Focusing liquid microjets with nozzles

Acero, A. J.; Ferrera, C.; Montanero, J. M.; Gañán-Calvo, Alfonso M. (IOP Publishing Ltd, 2012-01-01)
The stability of flow focusing taking place in a converging–diverging nozzle, as well as the size of the resulting microjets, ...
Article
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Numerical simulation of electrospray in the cone-jet mode

Herrada Gutiérrez, Miguel Ángel; López-Herrera Sánchez, José María; Gañán-Calvo, Alfonso M.; Vega, Emilio J.; Montanero, J. M. (American Physical Society, 2012-01-01)
We present a robust and computationally efficient numerical scheme for simulating steady electrohydrodynamic atomization ...
Article
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Application of flow focusing to the break-up of a magnetite suspension jet for the production of paramagnetic microparticles

Martín Banderas, Lucía; González Prieto, Román; Rodríguez Gil, Alfonso; Fernández Arévalo, María Mercedes; Flores Mosquera, María; Chávez de Diego, Sebastián; Gañán-Calvo, Alfonso M. (2011-01-01)
Paramagnetic particles offer an extensive improvement in the magnetic separation or purification of a wide variety of ...
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Experimental and numerical study of the recirculation flow inside a liquid meniscus focused by air

Gañán-Calvo, Alfonso M.; Ferrera, C.; Torregrosa, M.; Herrada Gutiérrez, Miguel Ángel; Marchand, M. (Springer-Verlag, 2011-01-01)
The internal motions inside a liquid meniscus in the so-called liquid cone-jet mode, which can occur upon stimulation by ...
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Generation of small mono-disperse bubbles in axisymmetric T-junction: The role of swirl

Herrada Gutiérrez, Miguel Ángel; Gañán-Calvo, Alfonso M.; López-Herrera Sánchez, José María (American Institute of Physics Inc., 2011-01-01)
The dynamics of micro-bubble formation in an axisymmetric T-junction for a gas-liquid system is analyzed. The approach ...
Article
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Micrometer glass nozzles for flow focusing

Montanero, J. M.; Gañán-Calvo, Alfonso M.; Acero, A. J.; Vega, Emilio J. (IOP Publishing Ltd, 2010-01-01)
We discuss the use of flame-shaped glass micro-nozzles for ultra-fine liquid atomization by flow focusing (DePonte et al ...
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Swirl flow focusing: A novel procedure for the massive production of monodisperse microbubbles

Herrada Gutiérrez, Miguel Ángel; Gañán-Calvo, Alfonso M. (American Institute of Physics, 2009-01-01)
volume-of-fluid numerical method is used to predict the dynamics of microbubble formation in an axisymmetric flow-focusing ...
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Reduction of droplet-size dispersion in parallel flow-focusing microdevices using a passive method

Luque, A.; Perdigones, Francisco A.; Esteve, Jaume; Montserrat, J.; Gañán-Calvo, Alfonso M.; Quero, José Manuel (IOP Publishing Ltd, 2009-01-01)
Flow-focusing devices can be used to produce microparticles at low cost, with the added advantage of low dispersion in the ...
PhD Thesis
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Microencapsulación mediante la tecnología Flow Focusing para aplicaciones biotecnológicas y biomédicas

Gañán-Calvo, Alfonso M.; Martín Banderas, Lucía (2008-05-05)
El objetivo principal de este trabajo, ha sido validar y consolidar la tecnología Flow Focusing como una alternativa firme ...
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Liquid flow focused by a gas: Jetting, dripping, and recirculation

Herrada Gutiérrez, Miguel Ángel; Gañán-Calvo, Alfonso M.; Bluth, Benjamín; Riesco Chueca, Pascual (The American Physical Society, 2008-01-01)
The liquid cone-jet mode can be produced upon stimulation by a coflowing gas sheath. Most applications deal with the jet ...
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Viscoelastic effects on the jetting–dripping transition in co-flowing capillary jets

Montanero, J. M.; Gañán-Calvo, Alfonso M. (Cambridge University Press, 2008-01-01)
Linear hydrodynamics stability analysis is used to determine the influence of elasticity on the jetting–dripping transition ...
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Unconditional jetting

Gañán-Calvo, Alfonso M. (American Physical Society, 2008-01-01)
Capillary jetting of a fluid dispersed into another immiscible phase is usually limited by a critical capillary number, a ...
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Electro-Flow Focusing: The high-conductivity low-viscosity limit

Gañán-Calvo, Alfonso M. (The American Physical Society, 2007-01-01)
Electro-flow focusing, a technique combining the features of electrospray (ES) and flow focusing (FF), provides a reliable ...
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Bubbling in Unbounded Coflowing Liquids

Gañán-Calvo, Alfonso M.; Herrada Gutiérrez, Miguel Ángel; Garstecki, Piotr (The American Physical Society, 2006-01-01)
An investigation of the stability of low density and viscosity fluid jets and spouts in unbounded coflowing liquids is ...
Presentation
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Producción de micropartículas fluorescentes de poliestireno mediante la tecnología Flow-Focusing

Martín Banderas, Lucía; Fernández Arévalo, María Mercedes; Gañán-Calvo, Alfonso M. (2005-01-01)
El presente trabajo describe la producción de micropartículas (MPs) fluorescentes de poliestireno empleando la tecnología ...
Presentation
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One-step production of fluorescent encoded polystyrene microparticles using flow focusing. Potencial applicatios in high-throughput screening

Martín Banderas, Lucía; Flores Mosquera, María; Rodríguez Gil, Alfonso; Cebolla, Ángel; Chávez, S.; Gañán-Calvo, Alfonso M. (2005-01-01)
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Formation of bubbles and droplets in microfluidic systems

Garstecki, Piotr; Gañán-Calvo, Alfonso M.; Whitesides, G. M. (Sciendo, 2005-01-01)
This mini-review reports the recent advances in the hydrodynamic techniques for formation of bubbles of gas in liquid in ...
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Enhanced liquid atomization: From flow-focusing to flow-blurring

Gañán-Calvo, Alfonso M. (AIP Publishing, 2005-01-01)
This letter describes the generation of small turbulence scales in connection with a singular back-flow pattern leading ...
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Linear stability analysis of axisymmetric perturbations in imperfectly conducting liquid jets

López-Herrera Sánchez, José María; Riesco Chueca, Pascual; Gañán-Calvo, Alfonso M. (American Institute of Physics, 2005-01-01)
A discussion is presented on the role of limited conductivity and permittivity on the behavior of electrified jets. Under ...
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A new device for the generation of microbubbles

Gordillo Arias de Saavedra, José Manuel; Cheng, Zhengdong; Gañán-Calvo, Alfonso M.; Márquez, M.; Weitz, D. A. (Elsevier, 2004-01-01)
In this paper we present a new method for the production of bubble-liquid suspensions (from now on BLS) composed of ...
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On the general scaling theory for electrospraying

Gañán-Calvo, Alfonso M. (Cambridge University Press, 2004-01-01)
A systematic dimensional rationale is proposed here to analyse the electrohydro- dynamic equations governing liquid ...
PhD Thesis
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Estudio teórico y experimental de la estabilidad lineal de corrientes co-axiales líquido-gas aplicación a la micro-atomización de líquidos y formación de micro-burbujas

Pérez-Saborid Sánchez-Pastor, Miguel; Gañán-Calvo, Alfonso M.; Gordillo Arias de Saavedra, José Manuel (2001-01-01)
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Perfectly Monodisperse Microbubbling by Capillary Flow Focusing

Gañán-Calvo, Alfonso M.; Gordillo Arias de Saavedra, José Manuel (The American Physical Society, 2001-01-01)
Here we report a simple microfluidics phenomenon which allows the efficient mass production of micron size gas bubbles ...
PhD Thesis
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Estudio teórico-experimental de la rotura de chorros cargados en ausencia de campo eléctrico axial impuesto

Gañán-Calvo, Alfonso M.; López-Herrera Sánchez, José María; López-Herrera Sánchez, José María (2000-01-01)
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Low and high Reynolds number flows inside Taylor cones

Barrero Ripoll, Antonio; Gañán-Calvo, Alfonso M.; Dávila Martín, Javier; Palacio, A.; Gómez-González, Emilio (American Physical Society, 1998-12-01)
Liquid motions inside Taylor cones exhibit interesting features which are not well understood yet. In addition to the flow ...
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Generation of Steady Liquid Microthreads and Micron-Sized Monodisperse Sprays in Gas Streams

Gañán-Calvo, Alfonso M. (The American Physical Society, 1998-01-01)
A new class of microscopic jet flows is here reported: for a certain range of physical parameters and geometrical ...
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Cone-Jet Analytical Extension of Taylor’s Electrostatic Solution and the Asymptotic Universal Scaling Laws in Electrospraying

Gañán-Calvo, Alfonso M. (The American Physical Society, 1997-01-01)
An analytical cone-jet solution for the electrohydrodynamic atomization of liquids has been foundfor an ...
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The Dynamics of Bubbles in Periodic Vortex Flowss

Tio, Kek-Kiong; Lasheras, J. C.; Gañán-Calvo, Alfonso M.; Liñán, A (Kluwer Academic Publishers, 1993-01-01)
To analyze the dynamics of small, spherical, rigid bubbles in a certain class of turbulent shear flows dominated by large ...
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The dynamics and mixing of small spherical particles in a plane, free shear layer

Gañán-Calvo, Alfonso M.; C. Lasheras, Juan (American Institute of Physics, 1991-01-01)
The equation of motion of small rigid spheres settling under gravity in a two-dimensional inviscid flow given by the Stuart ...
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Análisis modal de gotas cautivas

Gañán-Calvo, Alfonso M.; Barbero, A. (Asociación española de ingeniería mecánica, 1987-01-01)
Se ha desarrollado un modelo analítico para determinar las frecuencias de vibración y las oscilaciones libres de pequeña amplitud de gotas cautivas bajo la influencia de campos gravitatorios y/o isorrotacionales.