Publication
Metaphoric optical computing for fluid dynamics
Publications associées (39)
The tip region of a hydraulic fracture driven by a power law fluid
Brice Tanguy Alphonse Lecampion, Fatima-Ezzahra Moukhtari
We investigate the tip region of a hydraulic fracture driven by a power law fluid propagating at a constant velocity V in an impermeable linear elastic medium. We account for the presence of a fluid lag of a priori unknown length at the tip of the fracture ...
2016A Drift-Kinetic Model for Tokamak SOL Plasmas
Paolo Ricci, Rogério Manuel Cabete De Jesus Jorge
A fluid drift-reduced description, which accurately describes phenomena occurring on time scales slower than the characteristic gyro-frequencies and space scales longer than the Larmor radii, has been successfully used in recent years to model the dynamics ...
2016A Drift-Kinetic Model for Tokamak SOL Plasmas
Paolo Ricci, Rogério Manuel Cabete De Jesus Jorge
A fluid drift-reduced description, which accurately describes phenomena occurring on time scales slower than the characteristic gyro-frequencies and space scales longer than the Larmor radii, has been successfully used in recent years to model the dynamics ...
2016Ringin' the water bell: dynamic modes of curved fluid sheets
A water bell is formed by fluid flowing in a thin, coherent sheet in the shape of a bell. Experimentally, a water bell is created via the impact of a cylindrical jet on a flat surface. Its shape is set by the splash angle (the separation angle) of the resu ...
2015MATHICSE Technical Report : A fluid-structure interaction algorithm using radial basis function interpolation between non-conforming interfaces
Alfio Quarteroni, Simone Deparis, Davide Forti
We consider a fluid-structure interaction (FSI) problem discretized by finite elements featuring two different grids that do not necessarily agree on the interface separating the computational domain of the fluid from the one of the structure. After identi ...
MATHICSE2015Numerical approximation of the Navier-Stokes-Forchheimer equations and application to a passive flow control problem
The modeling of an incompressible fluid through a porous medium requires to deal with two systems of partial differential equations (PDEs) for the two types of media (fluid and porous). A possible way to couple theses two equations is by using the penaliza ...
2015The inviscid, compressible and rotational, 2D isotropic Burgers and pressureless Euler-Coriolis fluids: Solvable models with illustrations
The coupling between dilatation and vorticity, two coexisting and fundamental processes in fluid dynamics (Wu et al., 2006, pp. 3, 6) is investigated here, in the simplest cases of inviscid 2D isotropic Burgers and pressureless Euler Coriolis fluids respec ...
Elsevier Science Bv2014Experimental assessment of Owen's second hypothesis on surface shear stress induced by a fluid during sediment saltation
Michael Lehning, Benjamin Andreas Walter
A widely used, yet thus far unproven, fluid dynamical hypothesis originally presented by P. R. Owen 50years ago, states that the surface shear stress induced by a fluid on the ground during equilibrium sediment saltation is constant and independent of the ...
American Geophysical Union2014Comparisons between reduced order models and full 3D models for fluid-structure interaction problems in haemodynamics
Alfio Quarteroni, Simone Deparis, Claudia Maria Colciago
When modelling the cardiovascular system, the effect of the vessel wall on the blood flow has great relevance. Arterial vessels are complex living tissues and three-dimensional specific models have been proposed to represent their behaviour. The numerical ...
Elsevier2014Relaxation of a steep density gradient in a simple fluid: Comparison between atomistic and continuum modeling
We compare dynamical nonequilibrium molecular dynamics and continuum simulations of the dynamics of relaxation of a fluid system characterized by a non-uniform density profile. Results match quite well as long as the lengthscale of density nonuniformities ...
Amer Inst Physics2014