61 citations · 207 across the 15 of their papers we have counts for
9 papers · 1 filter
Numerical simulations of self-diffusiophoretic colloids at fluid interfaces
T. Peter, P. Malgaretti, N. Rivas +3
The dynamics of active colloids is very sensitive to the presence of boundaries and interfaces which therefore can be used to control their motion. Here we analyze the dynamics of…
How antagonistic salts cause nematic ordering and behave like diblock copolymers
David Jung, Nicolas Rivas, Jens Harting
We present simulation results and an explanatory theory on how antagonistic salts affect the spinodal decomposition of binary fluid mixtures. We find that spinodal decomposition is…
Solvation effects and contact angle saturation in electrowetting
Nicolas Rivas, Jens Harting
Electrowetting of nanodrops is studied for aqueous electrolyte mixtures. We report a new method for controlling the degree of deformation and minimum attainable contact angle by va…
Phase-coexisting patterns, horizontal segregation and controlled convection in vertically vibrated binary granular mixtures
I. H. Ansari, N. Rivas, M. Alam
We report new patterns, consisting of coexistence of sub-harmonic/harmonic and asynchronous states [for example, a granular gas co-existing with (i) bouncing bed, (ii) undulatory s…
Mesoscopic electrohydrodynamic simulations of binary colloidal suspensions
Nicolas Rivas, Stefan Frijters, Ignacio Pagonabarraga +1
A model is presented for the solution of electrokinetic phenomena of colloidal suspensions in fluid mixtures. We solve the discrete Boltzmann equation with a BGK collision operator…
Experiments and characterization of low-frequency oscillations in a granular column
Loreto Oyarte-Gálvez, Nicolás Rivas, Devaraj van der Meer
The behaviour of a vertically vibrated granular bed is reminiscent of a liquid in that it exhibits many phenomena such as convection and Faraday-like surface waves. However, when t…