Smoothed Particle Hydrodynamics: A consistent model for interfacial multiphase fluid flow simulations
TypeArticles dans des revues avec comité de lecture
In this work, a consistent Smoothed Particle Hydrodynamics (SPH) model to deal with interfacial multiphase fluid flows simulation is proposed. A modification to the Continuum Stress Surface formulation (CSS)  to enhance the stability near the fluid interface is developed in the framework of the SPH method. A non-conservative first-order consistency operator is used to compute the divergence of stress surface tensor. This formulation benefits of all the advantages of the one proposed by Adami et al.  and, in addition, it can be applied to more than two phases fluid flow simulations. Moreover, the generalized wall boundary conditions  are modified in order to be well adapted to multiphase fluid flows with different density and viscosity. In order to allow the application of this technique to wall-bounded multiphase flows, a modification of generalized wall boundary conditions is presented here for using the SPH method. In this work we also present a particle redistribution strategy as an extension of the damping technique presented in  to smooth the initial transient phase of gravitational multiphase fluid flow simulations. Several computational tests are investigated to show the accuracy, convergence and applicability of the proposed SPH interfacial multiphase model.
Files in this item
Showing items related by title, author, creator and subject.
KRIMI, Abdelkader; KHELLADI, Sofiane; NOGUEIRA, Xesús; DELIGANT, Michael; ATA, Riadh; REZOUG, Mehdi (ELSEVIER, 2018)In this work, a weakly compressible smoothed particle hydrodynamics (WCSPH) multiphase model is developed. The model is able to deal with soil-water interactions coupled in a strong and natural form. A Regularized Bingham ...
RAMÍREZ, Luis; NOGUEIRA, Xesús; KHELLADI, Sofiane; KRIMI, Abdelkader; COLOMINAS, Ignasi (Elsevier, 2018)In this work, we propose a new meshless approach based on a Galerkin discretization of a set of conservation equations on an Arbitrary Lagrangian–Eulerian framework. In particular, we solve the Linearized Euler Equations, ...
An a posteriori-implicit turbulent model with automatic dissipation adjustment for Large Eddy Simulation of compressible flows NOGUEIRA, Xesús; RAMÍREZ, Luis; FERNÁNDEZ-FIDALGO, Javier; DELIGANT, Michael; KHELLADI, Sofiane; CHASSAING, Jean-Camille; NAVARRINA, Fermín (ELSEVIER, 2019)In this work we present an a posteriori high-order finite volume scheme for the computation of compressible turbulent flows. An automatic dissipation adjustment (ADA) method is combined with the a posteriori paradigm, in ...
FOULQUIÉ, Charles; KHELLADI, Sofiane; DELIGANT, Michael; RAMÍREZ, Luis; NOGUEIRA, Xesús; MARDJONO, Jacky (Elsevier, 2020)This work deals with sound generation and transmission in a fan stage. The study is done on a subsonic Fan stage and interaction noise between the fan wakes and the Outlet Guide Vanes (OGV) is considered. For this purpose, ...
RAMÍREZ, Luis; FOULQUIÉ, Charles; NOGUEIRA, Xesús; KHELLADI, Sofiane; CHASSAING, Jean-Camille; COLOMINAS, Ignasi (Elsevier, 2015)This paper presents a new sliding mesh technique for the computation of unsteady viscous flows in the presence of rotating bodies. The compressible Euler and incompressible Navier–Stokes equations are solved using a ...