I develop models and numerical methods for fluctuating hydrodynamics and soft matter systems.
I try to create a family of solvers that span all the relevant time scales presented in micro-hydrodynamic
systems, from the acoustic time scales (which are relevant to acoustic tweezers), to the
overdamped or Stokes regime.
Currently, I am working in the Biophysical Modelling Group of
Michael Shelley where we use advanced numerical
methods to study active matter in biological and synthetic systems.
Before joining the Flatiron Institute I was a postdoc in the group of Aleksandar Donev
and a Ph.D. student of
Rafael Delgado-Buscalioni at the
Universidad Autónoma de Madrid.
Relating Rheotaxis and Hydrodynamic Actuation using Asymmetric Gold-Platinum Phoretic Rods,
Q. Brosseau, F. Balboa Usabiaga, E. Lushi, Y. Wu, L. Ristroph, J. Zhang, M. Ward and M. J. Shelley.
Physical Review Letters, 123 (17), 178004 (2019).
Hydrodynamic fluctuations in quasi-two dimensional diffusion ,
R. P. Peláez, F. Balboa Usabiaga, S. Panzuela, Q. Xiao, R. Delgado-Buscalioni and A. Donev.
Journal of Statistical Mechanics: Theory and Experiment, 063207 (2018).
Large Scale Brownian Dynamics of Confined Suspensions of Rigid Particles ,
Brennan Sprinkle, Florencio Balboa Usabiaga, Neelesh A. Patankar, and Aleksandar Donev.
The Journal of Chemical Physics, 147 244103 (2017).
fluam is a fluctuating hydrodynamic code implemented for GPUs. It can simulate simple and binary
mixtures or fluids with immersed particles in a wide number of physical regimes. It provides solvers for
the compressible and incompressible Navier-Stokes equations, it allows to include the particle inertia in both regimens
but it provides also a solver for the Stokes or Brownian regime. Thermal fluctuations are included in all the schemes.
Running on GPUs fluam is extremely efficient, it can simulate up to 30 time steps per
second in a system with 1 million cells.
Rigid Multiblobs Wall
Rigid Multiblobs Wall is a collection of python codes to
run simulations of rigid bodies made out of rigidly connected blobs, and confined above a single wall (floor).
These codes can compute the mobility of complex shape objects, solve mobility or resistance problems for
suspensions of many bodies or run deterministic or stochastic dynamic simulations.
With GPU acceleration is possible to simulate thousands of blobs efficiently.