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author = "Noblin, Xavier"
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Found 13 documents, displaying page 1 of 2

Mouillage et démouillage inertiel: triplons, flaques vibrées, ondes de chocs

Author(s) : NOBLIN, Xavier
Description : Nous avons étudié la statique et la dynamique d'une ligne triple flottante. Nous avons mesuré la force exercée par la ligne lorsqu'on la déforme (tensiomètre de ligne) et la relation de dispersion des ondes se propageant le long de la ligne ("Triplons"). Nous avons ensuite étudié l'effet de vibratio...
Repository : HAL - Hyper Article on Line
Language(s) : French

Electrowetting control of bouncing jets

Author(s) : Noblin, Xavier , Celestini, Franck
Description : As recently studied, a sub-millimetric liquid jet can bounce on sufficiently hydrophobic surfaces [F.Celestini et al., Soft Matter 6(23), 5872-5876 (2010); A. Kibar et al., Exp. Fluids 49(5), 1135-1145 (2010)]. As the hydrophobicity is reduced, the reflection angle (\theta_r) increases and the jet r...
Repository : HAL - Hyper Article on Line
Language(s) : English

Surface Tension Propulsion of Fungal Spores

Author(s) : Noblin, Xavier , Yang, Sylvia , Dumais, Jacques
Description : Most basidiomycete fungi actively eject their spores. The process begins with the condensation of a water droplet at the base of the spore. The fusion of the droplet onto the spore creates a momentum that propels the spore forward. The use of surface tension for spore ejection offers a new paradigm ...
Repository : Digital Access to Scholarship at Harvard
Language(s) : English

Surface tension propulsion of fungal spores

Author(s) : Noblin, Xavier , Yang, Sylvia , Dumais, Jacques
Description : Most basidiomycete fungi actively eject their spores. The process begins with the condensation of a water droplet at the base of the spore. The fusion of the droplet onto the spore creates a momentum that propels the spore forward. The use of surface tension for spore ejection offers a new paradigm ...
Repository : HAL - Hyper Article on Line
Language(s) : English

Ratchet-like motion of a shaken drop

Author(s) : Noblin, Xavier , Kofman, Richard , Celestini, Franck
Description : We study the motion of a drop lying on a plate simultaneously submitted to horizontal and vertical harmonic vibrations. The two driving vibrations are adjusted to the same frequency, and according to their relative amplitude and phase difference ∆Φ, the drop experiences a controlled directed motion ...
Repository : HAL - Hyper Article on Line
Language(s) : English

Photoelastic study of acoustic wave propagation in grain packings

Author(s) : Noblin, Xavier , Huillard, Guillaume , Rajchenbach, Jean
Description : By means of photoelasticity, we success in visualizing in real time the propagation of acoustic waves in a granular packing of cylinders. As previously mentioned by Nesterenko for the case of spherical grains, the nonlinearity of the contact law between grains induces a dependence of the wave veloci...
Repository : HAL - Hyper Article on Line
Language(s) : English

Propagation of acoustic waves in a one-dimensional array of noncohesive cylinders

Author(s) : Rajchenbach, Jean , Noblin, Xavier , Huillard, Guillaume
Description : By means of a photoelastic method, we access the visualization of acoustic waves propagating in a one dimensional array of noncohesive cylinders. As pointed by Nesterenko in the case of spherical grains (V.F. Nesterenko, J. Appl. Mech. Tech. Phys. 24, p. 567 (1983)), the nonlinearity of the contact ...
Repository : HAL - Hyper Article on Line
Language(s) : English

Surface tension propulsion of fungal spores by use of microdroplets

Author(s) : Noblin, Xavier , Yang, Sylvia , Dumais, Jacques
Description : Many edible mushrooms eject their spores (about 10 microns in size) at high speed (about 1 m/s) using surface tension forces in a few microseconds. Basically the coalescence of a droplet with the spore generates the necessary momentum to eject the spore. We have detailed this mechanism in \cite{no...
Repository : arXiv
Language(s) : Undetermined

Remote control of moving sessile droplets

Author(s) : Noblin, Xavier , Kofman, Richard , Celestini, Franck
Description : We recently put in evidence (\cite{noblin2}) that combined vertical and horizontal vibrations can induced a controlled motion of a sessile supported drop. In this video we generalize this finding and demonstrate that a remote 2d controlled motion is possible. This video was submitted as part of th...
Repository : arXiv
Language(s) : Undetermined

Dynamics of a ball bouncing on a vibrated elastic membrane

Author(s) : Eichwald, Brice , Argentina, Mederic , Noblin, Xavier , Celestini, Franck
Description : We investigate the dynamics of a ball bouncing on a vibrated elastic membrane. Beyond the classical solid/solid case, we study the effect of introducing new degrees of freedom by allowing substrate oscillations. The forcing frequency of the vibration strongly influences the different thresholds betw...
Repository : HAL - Hyper Article on Line
Language(s) : English
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Found 13 documents, displaying page 1 of 2