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Density-consistent Initialization of SPH on a Regular Cartesian Grid: Comparative Numerical Study of 10 Smoothing Kernels in 1, 2 and 3 Dimensions

Density-consistent Initialization of SPH on a Regular Cartesian Grid: Comparative Numerical Study of 10 Smoothing Kernels in 1, 2 and 3 Dimensions

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Tidsskriftspublikasjon
Sammendrag
Smoothed particle hydrodynamics (SPH) simulations are often initialized on a regular Cartesian grid. Ten SPH kernels were analyzed numerically with respect to their ability to correctly reproduce a uniform density distribution. Three types of kernels were identified. The number of neighboring particles required to represent the density with an accuracy of 0.1% was obtained for the 10 kernels in 1, 2 and 3 dimensions. The effect of random particle displacements from grid nodes on the error was investigated. The results of the study are important for correct application of initial conditions in SPH simulations.
Språk
Engelsk
Institusjon(er)
  • SINTEF Industri / Petroleum
  • SINTEF Industri / Prosessteknologi
  • SINTEF Digital / Mathematics and Cybernetics
  • SINTEF Ocean / Sjømatteknologi
  • SINTEF Byggforsk / Arkitektur, byggematerialer og konstruksjoner
  • SINTEF Industri / Materialer og nanoteknologi
  • SINTEF Ocean / Skip og havkonstruksjoner
År
2015
Publisert i
Procedia IUTAM
ISSN
2210-9838
Forlag
Elsevier BV
Årgang
18
Side(r)
85 - 95