53 citations · 217 across the 14 of their papers we have counts for
14 papers
Formation of cylindrical shells via sphere packing from fluidized beds
Vinícius Pereira da Silva Oliveira, Danilo da Silva Borges, Erick de Moraes Franklin +1
The results of a numerical investigation of fluidized beds of spherical particles in a narrow vertical cylindrical pipe, with particular attention to the spontaneous settling along…
Role of Friction on the Formation of Confined Granular Structures
Vinícius Pereira da S. Oliveira, Danilo S. Borges, Erick M. Franklin +1
Unstable systems of fluidized grains in a very-narrow vertical tube can auto-defluidize after some time, the settling particles forming either a glass- or crystal-like structure. W…
Extensional Viscosity of Immiscible Polymers Multinanolayer Films: Signature of the Interphase
Anna Dmochowska, Jorge Peixinho, Cyrille Sollogoub +1
The measurement of interfacial mechanical or rheological properties in polymer blends is a challenging task, as well as providing a quantitative link between these properties and t…
Instability and rupture of sheared viscous liquid nanofilms
Vira Dhaliwal, Christian Pedersen, Kheireddine Kadri +5
Liquid nanofilms are ubiquitous in nature and technology, and their equilibrium and out-of-equilibrium dynamics are key to a multitude of phenomena and processes. We numerically st…
Dewetting dynamics of sheared thin polymer films: an experimental study
Anna Dmochowska, Jorge Peixinho, Cyrille Sollogoub +1
An experimental investigation is reported on the effect of shear on the bursting of molten ultra-thin polymer films embedded in an immiscible matrix. By using an optical microscope…
Liquid Transfer for Viscoelastic Solutions
Hrishikesh Pingulkar, Jorge Peixinho, Olivier Crumeyrolle
Viscoelastic liquid transfer from one surface to another is a process that finds applications in many technologies, primarily in printing. Here, cylindrical shaped capillary bridge…
Dewetting of a thin polymer film under shear
Kheireddine Kadri, Jorge Peixinho, Thomas Salez +2
The objective of this work is to study the role of shear on the rupture of ultrathin polymer films. To do so, a finite-difference numerical scheme for the resolution of the thin fi…
Drop Dynamics of Viscoelastic Filament
Hrishikesh Pingulkar, Jorge Peixinho, Olivier Crumeyrolle
The stretching of viscoelastic polymer solutions close to break-up can create attached drops on a filament, whose properties and dynamics are little understood. The stretching of c…
Flow and air-entrainment around partially submerged vertical cylinders
Valentin Ageorges, Jorge Peixinho, Gaële Perret
In this study, a partially submerged vertical cylinder is moved at constant velocity through water, which is initially at rest. During the motion, the wake behind the cylinder indu…
Features of Transition to Turbulence in Sudden Expansion Pipe Flows
Minh Quan Nguyen, Benoit Lebon, Mostafa Safdari Shadloo +2
The complex flow features resulting from the laminar-turbulent transition (LTT) in a sudden expansion pipe flow, with expansion ratio of 1:2 subjected to an inlet vortex perturbati…
Stable pairs with descendents on local surfaces I: the vertical component
M. Kool, R. P. Thomas
We study the full stable pair theory --- with descendents --- of the Calabi-Yau 3-fold , where is a surface with a smooth canonical divisor . By both -lo…
Flow in a Circular Expansion Pipe Flow: Effect of a Vortex Perturbation on Localized Turbulence
Kamal Selvam, Jorge Peixinho, Ashley P. Willis
We report the results of three-dimensional direct numerical simulations for incompressible viscous fluid in a circular pipe flow with a sudden expansion. At the inlet, a parabolic…
Effect of the number of vortices on the torque scaling in Taylor-Couette flow
B. Martínez-Arias, J. Peixinho, O. Crumeyrolle +1
Torque measurements in Taylor-Couette flow, with large radius ratio and large aspect ratio, over a range of velocities up to a Reynolds number of 24 000 are presented. Following a…
Transition to turbulence in slowly divergent pipe flow
Jorge Peixinho, Hugues Besnard
The results of a combined experimental and numerical study of the flow in slowly diverging pipes are presented. Interestingly, an axisymmetric conical recirculation cell has been o…