6533b853fe1ef96bd12ad7f6
RESEARCH PRODUCT
Inflow/outflow pressure boundary conditions for smoothed particle hydrodynamics simulations of incompressible flows
Massimiliano MonteforteEnrico NapoliAlessandra Monteleonesubject
General Computer ScienceSPHInflow01 natural sciencesDomain (mathematical analysis)Settore ICAR/01 - Idraulica010305 fluids & plasmasPhysics::Fluid DynamicsSmoothed-particle hydrodynamicsEngineering (all)0103 physical sciencesBoundary value problem0101 mathematicsPressure Poisson EquationPhysicsTurbulenceOpen-boundaryComputer Science (all)General EngineeringLaminar flowMechanicsComputational physics010101 applied mathematicsIncompressible SPHCompressibilityOutflowPressure boundary conditiondescription
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.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2017-12-01 | Computers & Fluids |