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    Université de Fribourg

    Nonequilibrium solid-solid phase transition in a lattice of liquid jets

    Croccolo, Fabrizio ; Castellini, Stefano ; Scheffold, Frank ; Vailati, Alberto

    In: Physical Review E, 2018, vol. 98, no. 6, p. 063104

    Solid-solid phase transitions are commonly encountered at the atomic scale in alloys and in superatomic mesoscopic systems of colloidal particles. Here we investigate a solid-solid phase transition occurring at the macroscopic scale between lattices of liquid jets with different symmetries generated by convection in a horizontal layer of a binary liquid mixture. In the absence of a shear...

    Université de Fribourg

    Inclined layer convection in a colloidal suspension with negative Soret coefficient at large solutal Rayleigh numbers

    Italia, Matteo ; Croccolo, Fabrizio ; Scheffold, Frank ; Vailati, Alberto

    In: The European Physical Journal E, 2014, vol. 37, no. 10, p. 1–6

    Convection in an inclined layer of fluid is affected by the presence of a component of the acceleration of gravity perpendicular to the density gradient that drives the convective motion. In this work we investigate the solutal convection of a colloidal suspension characterized by a negative Soret coefficient. Convection is induced by heating the suspension from above, and at large solutal...

    Université de Fribourg

    Effect of a marginal inclination on pattern formation in a binary liquid mixture under thermal stress

    Croccolo, Fabrizio ; Scheffold, Frank ; Vailati, Alberto

    In: Physical Review Letters, 2013, vol. 111, no. 1, p. 014502

    Convective motions in a fluid layer are affected by its orientation with respect to the gravitational field. We investigate the long-term stability of a thermally stressed layer of a binary liquid mixture and show that pattern formation is strongly affected by marginal inclinations as small as a few milliradians. At small Rayleigh numbers, the mass transfer is dominated by the induced large scale...