Zobrazeno 1 - 10
of 34
pro vyhledávání: '"Marin, Alvaro G."'
A drop of water deposited on a cold plate freezes into an ice drop with a pointy tip. While this phenomenon clearly finds its origin in the expansion of water upon freezing, a quantitative description of the tip singularity has remained elusive. Here
Externí odkaz:
http://arxiv.org/abs/1404.7023
In this Fluid Dynamics Videos submitted to the 31st Gallery of Fluid Motion, (find a different version here http://youtu.be/CS0c05WQ_js) we illustrate the special dynamics of capillary self-propelled Leidenfrost droplets in micrometric Ratchets. In o
Externí odkaz:
http://arxiv.org/abs/1310.3583
Autor:
Marin, Alvaro G., van Hoeve, Wim, García-Sánchez, Pablo, Shui, Lingling, Xie, Yanbo, Fontelos, Marco A., Eijkel, Jan C. T., Berg, Albert van den, Lohse, Detlef
The so-called "Kelvin water dropper" is a simple experiment demonstrating the spontaneous appearance of induced free charge in droplets emitted through a tube. As Lord Kelvin explained, water droplets spontaneously acquire a net charge during detachm
Externí odkaz:
http://arxiv.org/abs/1309.2866
Autor:
Muller, Peter B., Rossi, Massimiliano, Marin, Alvaro G., Barnkob, Rune, Augustsson, Per, Laurell, Thomas, Kaehler, Christian J., Bruus, Henrik
Publikováno v:
Phys Rev E 88, 023006 (2013)
We derive analytical expressions for the three-dimensional (3D) acoustophoretic motion of spherical microparticles in rectangular microchannels. The motion is generated by the acoustic radiation force and the acoustic streaming-induced drag force. In
Externí odkaz:
http://arxiv.org/abs/1303.0201
Autor:
Marin, Alvaro G., del Cerro, Daniel Arnaldo, Römer, Gertwillem R. B. E., Pathiraj, B., Veld, Albertus Huis in 't, Lohse, Detlef
Leidenfrost ratchets are structures with the ability of transporting liquid droplets when heated over the critical Leidenfrost temperature. Once this temperature is reached, the droplet levitates over the surface and moves in the direction marked by
Externí odkaz:
http://arxiv.org/abs/1210.4978
Electrosprays are a powerful technique to generate charged micro/nanodroplets. In the last century, the technique received extensive study and successful applications, including a Nobel price in Chemistry. However, nowadays its use in microfluidic de
Externí odkaz:
http://arxiv.org/abs/1208.1143
Autor:
Marin, Alvaro G., Susarrey-Arce, Arturo, Gelderblom, Hanneke, van Houselt, Arie, Lefferts, Leon, Gardeniers, Han, Lohse, Detlef, Snoeijer, Jacco
Evaporation-driven particle self-assembly can be used to generate three-dimensional microstructures. We present a new method to create these colloidal microstructures, in which we can control the amount of particles and their packing fraction. To thi
Externí odkaz:
http://arxiv.org/abs/1203.4361
In this fluid dynamics video we show how a drop of water freezes into a singular shape when deposited on a cold surface. The process of solidification can be observed very clearly due to the change in refraction when water turns into ice. The drop re
Externí odkaz:
http://arxiv.org/abs/1110.3698
Publikováno v:
Phys. Rev. Lett. 107, 085502 (2011)
A colloidal dispersion droplet evaporating from a surface, such as a drying coffee drop, leaves a distinct ring-shaped stain. Although this mechanism is frequently used for particle self-assembly, the conditions for crystallization have remained uncl
Externí odkaz:
http://arxiv.org/abs/1107.0618
Autor:
Marin, Alvaro G., Lohse, Detlef
The interaction of electrical fields and liquids can lead to phenomena that defies intuition. Some famous examples can be found in Electrohydrodynamics as Taylor cones, whipping jets or non-coalescing drops. A less famous example is the Floating Wate
Externí odkaz:
http://arxiv.org/abs/1010.4019