Krimi, AbdelkaderRezoug, MehdiKhelladi, SofianeNogueira, XesúsDeligant, MichaëlRamírez, Luis2023-12-292023-12-292018Krimi, A., Rezoug, M., Khelladi, S., Nogueira, X., Deligant, M., Ramírez, L. (2018). Smoothed particle hydrodynamics: a consistent model for interfacial multiphase fluid flow simulations. Journal of Computational Physics, 358, 53-87. https://doi.org/10.1016/j.jcp.2017.12.006http://hdl.handle.net/2183/34724Versión aceptada de https://doi.org/10.1016/j.jcp.2017.12.006[Abstract:] 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) [1] 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. [2] and, in addition, it can be applied to more than two phases fluid flow simulations. Moreover, the generalized wall boundary conditions [3] 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 [3] 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.engAtribución-NoComercial-SinDerivadas 3.0 Españahttp://creativecommons.org/licenses/by-nc-nd/3.0/es/Smoothed Particle HydrodynamicsMultiphase fluid flowInterfacial fluid flowSurface tension formulationHigh density and viscosity ratiojournal articleopen access10.1016/j.jcp.2017.12.006