A coupled Finite Volume–Smoothed Particle Hydrodynamics method for incompressible flows

Enrico Napoli, Alessandra Monteleone, Barbara Milici, Mauro De Marchis

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18 Citazioni (Scopus)

Abstract

An hybrid approach is proposed which allows to combine Finite Volume Method (FVM) and Smoothed Particle Hydrodynamics (SPH). The method is based on the partitioning of the computational domain into a portion discretized with a structured grid of hexahedral elements (the FVM-domain) and a portion filled with Lagrangian particles (the SPH-domain), separated by an interface made of triangular elements. A smooth transition between the solutions in the FVM and SPH regions is guaranteed by the introduction of a layer of grid cells in the SPH-domain and of a band of virtual particles in the FVM one (both neighboring the interface), on which the hydrodynamic variables are obtained through suitable interpolation procedures from the local solutions. Several test cases are used in order to test the efficiency and accuracy of the proposed hybrid method, showing that a significant reduction in the computational efforts can be achieved with respect to the standard SPH method.
Lingua originaleEnglish
pagine (da-a)674-693
Numero di pagine20
RivistaComputer Methods in Applied Mechanics and Engineering
Volume310
Stato di pubblicazionePublished - 2016

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incompressible flow
Incompressible flow
Hydrodynamics
hydrodynamics
Finite volume method
finite volume method
Interpolation
interpolation
grids
cells

All Science Journal Classification (ASJC) codes

  • Computational Mechanics
  • Computer Science Applications
  • Physics and Astronomy(all)
  • Mechanical Engineering
  • Mechanics of Materials

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abstract = "An hybrid approach is proposed which allows to combine Finite Volume Method (FVM) and Smoothed Particle Hydrodynamics (SPH). The method is based on the partitioning of the computational domain into a portion discretized with a structured grid of hexahedral elements (the FVM-domain) and a portion filled with Lagrangian particles (the SPH-domain), separated by an interface made of triangular elements. A smooth transition between the solutions in the FVM and SPH regions is guaranteed by the introduction of a layer of grid cells in the SPH-domain and of a band of virtual particles in the FVM one (both neighboring the interface), on which the hydrodynamic variables are obtained through suitable interpolation procedures from the local solutions. Several test cases are used in order to test the efficiency and accuracy of the proposed hybrid method, showing that a significant reduction in the computational efforts can be achieved with respect to the standard SPH method.",
keywords = "Boundary conditions; Coupled FVM–SPH approach; Mirror particles; Smoothed Particle Hydrodynamics; SPH; Computational Mechanics; Mechanics of Materials; Mechanical Engineering; Physics and Astronomy (all); Computer Science Applications1707 Computer Vision and Pattern Recognition",
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TY - JOUR

T1 - A coupled Finite Volume–Smoothed Particle Hydrodynamics method for incompressible flows

AU - Napoli, Enrico

AU - Monteleone, Alessandra

AU - Milici, Barbara

AU - De Marchis, Mauro

PY - 2016

Y1 - 2016

N2 - An hybrid approach is proposed which allows to combine Finite Volume Method (FVM) and Smoothed Particle Hydrodynamics (SPH). The method is based on the partitioning of the computational domain into a portion discretized with a structured grid of hexahedral elements (the FVM-domain) and a portion filled with Lagrangian particles (the SPH-domain), separated by an interface made of triangular elements. A smooth transition between the solutions in the FVM and SPH regions is guaranteed by the introduction of a layer of grid cells in the SPH-domain and of a band of virtual particles in the FVM one (both neighboring the interface), on which the hydrodynamic variables are obtained through suitable interpolation procedures from the local solutions. Several test cases are used in order to test the efficiency and accuracy of the proposed hybrid method, showing that a significant reduction in the computational efforts can be achieved with respect to the standard SPH method.

AB - An hybrid approach is proposed which allows to combine Finite Volume Method (FVM) and Smoothed Particle Hydrodynamics (SPH). The method is based on the partitioning of the computational domain into a portion discretized with a structured grid of hexahedral elements (the FVM-domain) and a portion filled with Lagrangian particles (the SPH-domain), separated by an interface made of triangular elements. A smooth transition between the solutions in the FVM and SPH regions is guaranteed by the introduction of a layer of grid cells in the SPH-domain and of a band of virtual particles in the FVM one (both neighboring the interface), on which the hydrodynamic variables are obtained through suitable interpolation procedures from the local solutions. Several test cases are used in order to test the efficiency and accuracy of the proposed hybrid method, showing that a significant reduction in the computational efforts can be achieved with respect to the standard SPH method.

KW - Boundary conditions; Coupled FVM–SPH approach; Mirror particles; Smoothed Particle Hydrodynamics; SPH; Computational Mechanics; Mechanics of Materials; Mechanical Engineering; Physics and Astronomy (all); Computer Science Applications1707 Computer Vision

UR - http://hdl.handle.net/10447/202000

UR - http://www.journals.elsevier.com/computer-methods-in-applied-mechanics-and-engineering/

M3 - Article

VL - 310

SP - 674

EP - 693

JO - Computer Methods in Applied Mechanics and Engineering

JF - Computer Methods in Applied Mechanics and Engineering

SN - 0374-2830

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