Publication
A Flexible Coupled Level Set and Volume of Fluid (flexCLV) method to simulate microscale two-phase flow in non-uniform and unstructured meshes
Publications associées (47)
Interface-fitted moving mesh method for axisymmetric two-phase flow in microchannels
John Richard Thome, Gustavo Rabello Dos Anjos, Erik Gros
A boundary-fitted moving mesh scheme is presented for the simulation of two-phase flow in two-dimensional and axisymmetric geometries. The incompressible Navier-Stokes equations are solved using the finite element method, and the mini element is used to sa ...
Wiley2018Physics of Bubble-Propelled Microrockets
François Gallaire, Giacomo Gallino
A popular method to induce synthetic propulsion at the microscale is to use the forces created by surface-produced gas bubbles inside the asymmetric body of a catalytic swimmer (referred to in the literature as microrocket). Gas bubbles nucleate and grow w ...
2018Undulations on the surface of elongated bubbles in confined gas-liquid flows
John Richard Thome, Alessio Ferrari, Mirco Magnini
A systematic analysis is presented of the undulations appearing on the surface of long bubbles in confined gas-liquid flows. CFD simulations of the flow are performed with a self-improved version of the open-source solver ESI OpenFOAM (release 2.3.1), for ...
Amer Physical Soc2017Characterization of the velocity fields generated by flow initialization in the CFD simulation of multiphase flows
John Richard Thome, Mirco Magnini
Recent improvements in numerical algorithms for Eulerian-based CFD simulations of multiphase flows can now recover the exact balance between the pressure and surface tension terms within the momentum equation. This has led to the minimization of the so cal ...
Elsevier2016Dynamics of isolated confined air bubbles in liquid flows through circular microchannels: an experimental and numerical study
John Richard Thome, Navid Borhani, Mirco Magnini, Sepideh Khodaparast
Experimental and numerical studies are performed to characterise the dynamics of isolated confined air bubbles in laminar fully developed liquid flows within channels of diameters d = 0.5 mm and d = 1 mm. Water and glycerol are used as the continuous liqui ...
Springer Verlag2015Instant Field-aligned Meshes
We present a novel approach to remesh a surface into an isotropic triangular or quad-dominant mesh using a unified local smoothing operator that optimizes both the edge orientations and vertex positions in the output mesh. Our algorithm produces meshes wit ...
ACM2015Beer tapping: dynamics of bubbles after impact
François Gallaire, Pierre-Thomas Paul Brun, Vladislav Mantic Lugo
Beer tapping is a well known prank where a bottle of beer is impacted from the top by a solid object, usually another bottle, leading to a sudden foam overflow. A description of the shock-driven bubble dynamics leading to foaming is presented based on an e ...
Iop Publishing Ltd20153D ALE Finite-Element Method for Two-Phase Flows With Phase Change
John Richard Thome, Navid Borhani, Gustavo Rabello Dos Anjos
We seek to study numerically two-phase flow phenomena with phase change through the finite-element method (FEM) and the arbitrary Lagrangian-Eulerian (ALE) framework. This method is based on the so-called one-fluid formulation; thus, only one set of equati ...
Taylor & Francis2014A 3D moving mesh Finite Element Method for two-phase flows
John Richard Thome, Navid Borhani, Gustavo Rabello Dos Anjos
A 3D ALE Finite Element Method is developed to study two-phase flow phenomena using a new discretization method to compute the surface tension forces. The computational method is based on the Arbitrary Lagrangian-Eulerian formulation (ALE) and the Finite E ...
Elsevier2014Numerical simulation of 3D free surface flows, with multiple incompressible immiscible phases. Applications to impulse waves
Marco Picasso, Alexandre Caboussat
A numerical method for the solution to the density-dependent incompressible Navier-Stokes equations modeling the flow of N immiscible incompressible liquid phases with a free surface is proposed. It allows to model the flow of an arbitrary number of liquid ...
Wiley-Blackwell2014