Details
| Original language | English |
|---|---|
| Pages (from-to) | 487-502 |
| Number of pages | 16 |
| Journal | Computational mechanics |
| Volume | 65 |
| Issue number | 2 |
| Early online date | 7 Nov 2019 |
| Publication status | Published - Feb 2020 |
Abstract
In this work a Dirichlet pressure boundary condition for incompressible Smoothed Particle Hydrodynamics (SPH) is presented for free surfaces under surface tension. These free surfaces occur when the surrounding phase in simulations is neglected for computational reasons while the effects of the surface tension shall remain. We demonstrate capabilities of the boundary condition by comparing it to an approach from the literature. The simulations show that our approach provides a higher stability to the free surface, being capable of capturing static and transient processes as much as bubble coalescence. Furthermore a new approach is presented to compute the curvature more exactly for three-dimensional cases in order to stabilize the simulation, which is applicable for weakly compressible SPH and incompressible SPH simulations.
Keywords
- Boundary condition, Coalescence, Free surface, ISPH, PPE, SPH, Surface tension
ASJC Scopus subject areas
- Engineering(all)
- Computational Mechanics
- Engineering(all)
- Ocean Engineering
- Engineering(all)
- Mechanical Engineering
- Computer Science(all)
- Computational Theory and Mathematics
- Mathematics(all)
- Computational Mathematics
- Mathematics(all)
- Applied Mathematics
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In: Computational mechanics, Vol. 65, No. 2, 02.2020, p. 487-502.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Free surface tension in incompressible smoothed particle hydrodynamcis (ISPH)
AU - Fürstenau, Jan Philipp
AU - Weißenfels, Christian
AU - Wriggers, Peter
PY - 2020/2
Y1 - 2020/2
N2 - In this work a Dirichlet pressure boundary condition for incompressible Smoothed Particle Hydrodynamics (SPH) is presented for free surfaces under surface tension. These free surfaces occur when the surrounding phase in simulations is neglected for computational reasons while the effects of the surface tension shall remain. We demonstrate capabilities of the boundary condition by comparing it to an approach from the literature. The simulations show that our approach provides a higher stability to the free surface, being capable of capturing static and transient processes as much as bubble coalescence. Furthermore a new approach is presented to compute the curvature more exactly for three-dimensional cases in order to stabilize the simulation, which is applicable for weakly compressible SPH and incompressible SPH simulations.
AB - In this work a Dirichlet pressure boundary condition for incompressible Smoothed Particle Hydrodynamics (SPH) is presented for free surfaces under surface tension. These free surfaces occur when the surrounding phase in simulations is neglected for computational reasons while the effects of the surface tension shall remain. We demonstrate capabilities of the boundary condition by comparing it to an approach from the literature. The simulations show that our approach provides a higher stability to the free surface, being capable of capturing static and transient processes as much as bubble coalescence. Furthermore a new approach is presented to compute the curvature more exactly for three-dimensional cases in order to stabilize the simulation, which is applicable for weakly compressible SPH and incompressible SPH simulations.
KW - Boundary condition
KW - Coalescence
KW - Free surface
KW - ISPH
KW - PPE
KW - SPH
KW - Surface tension
UR - http://www.scopus.com/inward/record.url?scp=85074867727&partnerID=8YFLogxK
U2 - 10.1007/s00466-019-01780-6
DO - 10.1007/s00466-019-01780-6
M3 - Article
AN - SCOPUS:85074867727
VL - 65
SP - 487
EP - 502
JO - Computational mechanics
JF - Computational mechanics
SN - 0178-7675
IS - 2
ER -