Inflow/outflow pressure boundary conditions for smoothed particle hydrodynamics simulations of incompressible flows

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Abstract

Open Boundary treatment is a well-known issue in the Smoothed Particle Hydrodynamics (SPH) method, mainly when the truly Incompressible (ISPH) approach is employed. In the paper a novel method is proposed to set pressure boundary conditions in the computational domain inlets and outlets, without requiring the velocity profile assignment. The new technique allows to treat in the same way inflow and outflow sections, effectively dealing with the release of new particles at inlets and the deactivation of the ones leaving the domain through the outlets. Several 3D numerical tests, both in the laminar and turbulent regimes, are carried out to validate the proposed numerical scheme considering steady and oscillating pressure boundary conditions.
Lingua originaleEnglish
pagine (da-a)9-22
Numero di pagine14
RivistaCOMPUTERS & FLUIDS
Volume159
Stato di pubblicazionePublished - 2017

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Incompressible flow
Hydrodynamics
Boundary conditions

All Science Journal Classification (ASJC) codes

  • Computer Science(all)
  • Engineering(all)

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title = "Inflow/outflow pressure boundary conditions for smoothed particle hydrodynamics simulations of incompressible flows",
abstract = "Open Boundary treatment is a well-known issue in the Smoothed Particle Hydrodynamics (SPH) method, mainly when the truly Incompressible (ISPH) approach is employed. In the paper a novel method is proposed to set pressure boundary conditions in the computational domain inlets and outlets, without requiring the velocity profile assignment. The new technique allows to treat in the same way inflow and outflow sections, effectively dealing with the release of new particles at inlets and the deactivation of the ones leaving the domain through the outlets. Several 3D numerical tests, both in the laminar and turbulent regimes, are carried out to validate the proposed numerical scheme considering steady and oscillating pressure boundary conditions.",
author = "Enrico Napoli and Massimiliano Monteforte and Alessandra Monteleone",
year = "2017",
language = "English",
volume = "159",
pages = "9--22",
journal = "Computers and Fluids",
issn = "0045-7930",
publisher = "Elsevier Ltd",

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T1 - Inflow/outflow pressure boundary conditions for smoothed particle hydrodynamics simulations of incompressible flows

AU - Napoli, Enrico

AU - Monteforte, Massimiliano

AU - Monteleone, Alessandra

PY - 2017

Y1 - 2017

N2 - Open Boundary treatment is a well-known issue in the Smoothed Particle Hydrodynamics (SPH) method, mainly when the truly Incompressible (ISPH) approach is employed. In the paper a novel method is proposed to set pressure boundary conditions in the computational domain inlets and outlets, without requiring the velocity profile assignment. The new technique allows to treat in the same way inflow and outflow sections, effectively dealing with the release of new particles at inlets and the deactivation of the ones leaving the domain through the outlets. Several 3D numerical tests, both in the laminar and turbulent regimes, are carried out to validate the proposed numerical scheme considering steady and oscillating pressure boundary conditions.

AB - Open Boundary treatment is a well-known issue in the Smoothed Particle Hydrodynamics (SPH) method, mainly when the truly Incompressible (ISPH) approach is employed. In the paper a novel method is proposed to set pressure boundary conditions in the computational domain inlets and outlets, without requiring the velocity profile assignment. The new technique allows to treat in the same way inflow and outflow sections, effectively dealing with the release of new particles at inlets and the deactivation of the ones leaving the domain through the outlets. Several 3D numerical tests, both in the laminar and turbulent regimes, are carried out to validate the proposed numerical scheme considering steady and oscillating pressure boundary conditions.

UR - http://hdl.handle.net/10447/247392

M3 - Article

VL - 159

SP - 9

EP - 22

JO - Computers and Fluids

JF - Computers and Fluids

SN - 0045-7930

ER -