Search results for "Free surface flows"

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A simple procedure to improve the pressure evaluation in hydrodynamic context using the SPH

2009

In literature, it is well know that the Smoothed Particle Hydrodynamics method can be affected by numerical noise on the pressure field when dealing with liquids. This can be highly dangerous when an SPH code is dynamically coupled with a structural solver. In this work a simple procedure is proposed to improve the computation of the pressure distribution in the dynamics of liquids. Such a procedure is based on the use of a density diffusion term in the equation for the mass conservation. This diffusion is a pure numerical effect, similar to the well known artificial viscosity originally proposed in SPH method to smooth out the shock discontinuities. As the artificial viscosity, the density…

Fluid–structure impact problemPhysicsSettore FIS/02 - Fisica Teorica Modelli E Metodi MatematiciFree surface flowsConvergence testsSmoothed Particle HydrodynamicGeneral Physics and AstronomyFluid-structure impact problemsSPH pressure evaluationContext (language use)MechanicsSolverFree surface flowSmoothed-particle hydrodynamicsSmoothed Particle HydrodynamicsClassical mechanicsHardware and ArchitectureViscosity (programming)Convergence (routing)Convergence testsDiffusion (business)Weak-compressibilityConservation of mass
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