scholarly journals Comparison of surface tension generation methods in smoothed particle hydrodynamics for dynamic systems

2020 ◽  
Vol 203 ◽  
pp. 104540
Author(s):  
Erin Arai ◽  
Alexandre Tartakovsky ◽  
R. Glynn Holt ◽  
Sheryl Grace ◽  
Emily Ryan
Keyword(s):  
Surface Tension ◽  
Dynamic Systems ◽  
Smoothed Particle Hydrodynamics ◽  
Particle Hydrodynamics ◽  
Smoothed Particle ◽  
Tension Generation

Surface tension and wetting effects with smoothed particle hydrodynamics

2013 ◽  
Vol 243 ◽  
pp. 14-27 ◽  
Author(s):  
Thomas Breinlinger ◽  
Pit Polfer ◽  
Adham Hashibon ◽  
Torsten Kraft
Keyword(s):  
Surface Tension ◽  
Smoothed Particle Hydrodynamics ◽  
Particle Hydrodynamics ◽  
Smoothed Particle

scholarly journals Comment on “Free surface tension in incompressible smoothed particle hydrodynamics (ISPH)” [Comput. Mech. 2020, 65, 487–502]

2021 ◽  
Author(s):  
Fabian Thiery ◽  
Fabian Fritz ◽  
Nikolaus A. Adams ◽  
Stefan Adami
Keyword(s):  
Surface Tension ◽  
Free Surface ◽  
Smoothed Particle Hydrodynamics ◽  
Free Surface Flows ◽  
Work Related ◽  
Classical Formulation ◽  
Particle Hydrodynamics ◽  
Smoothed Particle ◽  
Incompressible Smoothed Particle Hydrodynamics ◽  
Curvature Approximation

AbstractWe comment on a recent article [Comput. Mech. 2020, 65, 487–502] about surface-tension modeling for free-surface flows with Smoothed Particle Hydrodynamics. The authors motivate part of their work related to a novel principal curvature approximation by the wrong claim that the classical curvature formulation in SPH overestimates the curvature in 3D by a factor of 2. In this note we confirm the correctness of the classical formulation and point out the misconception of the commented article.

The Kelvin-Helmholtz Instability in Smoothed-Particle Hydrodynamics

2006 ◽  
Vol 2 (S235) ◽  
pp. 210-210
Author(s):  
Veronika Junk ◽  
Fabian Heitsch ◽  
Thorsten Naab
Keyword(s):  
Surface Tension ◽  
Growth Rate ◽  
Smoothed Particle Hydrodynamics ◽  
Linear Regime ◽  
Helmholtz Instability ◽  
Sph Method ◽  
Viscosity Effects ◽  
Particle Hydrodynamics ◽  
Smoothed Particle ◽  
Grid Based

AbstractSmoothed Particle Hydrodynamics (SPH) simulations are a powerful tool to investigate hydrodynamical processes in astrophysics such as the formation of galactic disks. Dense gas clouds raining on the forming disk are possibly disrupted by Kelvin-Helmholtz-Instabilities (KHI). To understand the evolution of the halo clouds, we have to ascertain the capability of SPH to treat the KHI correctly, since SPH-methods tend to suffer from an innate surface tension and viscosity effects, both of which could dampen the KHI. We analytically derive a growth rate of the KHI including surface tension and viscosity in the linear regime, and compare this growth rate to results of numerical simulations by an SPH method and a grid-based method. We find that SPH in some cases suppresses the KHI (Junk et al., in prep).

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