280 citations · 4k across the 93 of their papers we have counts for
14 papers · 1 filter
Suspensions of deformable particles in Poiseuille flows at finite inertia
Luigi Filippo Chiara, Marco Edoardo Rosti, Francesco Picano +1
We analyze a suspension of deformable particles in a pressure-driven flow. The suspension is composed of neutrally buoyant initially spherical particles and a Newtonian carrier flu…
Fiber Tracking Velocimetry for two-point statistics of turbulence
Stefano Brizzolara, Marco Edoardo Rosti, Stefano Olivieri +3
We propose and validate a novel experimental technique to measure two-point statistics of turbulent flows. It consists in spreading rigid fibers in the flow and tracking their posi…
The impact of porous walls on the rheology of suspensions
Marco E. Rosti, Parisa Mirbod, Luca Brandt
We study the effect of isotropic porous walls on a plane Couette flow laden with spherical and rigid particles. We perform a parametric study varying the volume fraction between $0…
Aerodynamically-driven rupture of a liquid film by turbulent shear flow
Melissa Kozul, Pedro S. Costa, James R. Dawson +1
The rupture of a liquid film due to co-flowing turbulent shear flows in the gas phase is studied using a volume-of-fluid method. To simulate this multiphase problem, we use a simpl…
Low Reynolds number turbulent flows over elastic walls
Marco E Rosti, Luca Brandt
We study the laminar and turbulent channel flow over a viscous hyper-elastic wall and show that it is possible to sustain an unsteady chaotic turbulent-like flow at any Reynolds nu…
Regimes of heat transfer in particle suspensions
Ali Yousefi, Mehdi Niazi Ardekani, Francesco Picano +1
We present results of interface-resolved simulations of heat transfer in suspensions of finite-size neutrally-buoyant spherical particles for solid volume fractions up to 35% and b…
Dispersed fibers change the classical energy budget of turbulence via nonlocal transfer
S. Olivieri, L. Brandt, M. E. Rosti +1
The back-reaction of dispersed rigid fibers to turbulence is analyzed by means of a state-of-the-art fully-coupled immersed boundary method. The following universal scenario is ide…
Effects of surface nanostructure and wettability on pool boiling: A molecular dynamics study
Armin Shahmardi, Outi Tammisola, Mauro Chinappi +1
We study the role of surface topology, surface chemistry, and wall superheat temperature on the onset of boiling, bubble nucleation and growth, and the possible formation of an ins…
Weakly adhesive suspension shows rate-dependence in oscillatory but not steady shear flows
Zhouyang Ge, Raffaella Martone, Luca Brandt +1
We report rheological measurements of a noncolloidal particle suspension in a Newtonian solvent at 40% solid volume fraction. An anomalous, frequency-dependent complex viscosity is…
Implementation note on a minimal hybrid lubrication/granular dynamics model for dense suspensions
Zhouyang Ge, Luca Brandt
We describe and summarize a class of minimal numerical models emerged from recent development of simulation methods for dense particle suspensions in overdamped linear flows. The m…
An interface capturing method for liquid-gas flows at low-Mach number
Federico Dalla Barba, Nicolò Scapin, Marco E. Rosti +2
Multiphase, compressible and viscous flows are of crucial importance in a wide range of scientific and engineering problems. Despite the large effort paid in the last decades to de…
Numerical simulations of a sphere settling in simple shear flows of yield stress fluids
Mohammad Sarabian, Marco E. Rosti, Luca Brandt +1
We perform D numerical simulations to investigate the sedimentation of a single sphere in the absence and presence of a simple cross shear flow in a yield stress fluid with weak…
Turbulence in a network of rigid fibers
S. Olivieri, A. Akoush, L. Brandt +2
The effect of a network of fixed rigid fibers on fluid flow is investigated by means of three-dimensional direct numerical simulations using an immersed boundary method for the flu…
GPU acceleration of CaNS for massively-parallel direct numerical simulations of canonical fluid flows
Pedro Costa, Everett Phillips, Luca Brandt +1
This work presents the GPU acceleration of the open-source code CaNS for very fast massively-parallel simulations of canonical fluid flows. The distinct feature of the many-CPU Nav…