Details
| Original language | English |
|---|---|
| Pages (from-to) | 353-383 |
| Number of pages | 31 |
| Journal | CMES - Computer Modeling in Engineering and Sciences |
| Volume | 121 |
| Issue number | 2 |
| Publication status | Published - 2019 |
| Externally published | Yes |
Abstract
A dual-support smoothed particle hydrodynamics (DS-SPH) that allows variable smoothing lengths while satisfying the conservations of linear momentum, angular momentum and energy is developed. The present DS-SPH is inspired by the dual-support, a concept introduced from dual-horizon peridynamics from the authors and applied here to SPH so that the unbalanced interactions between the particles with different smoothing lengths can be correctly considered and computed. Conventionally, the SPH formulation employs either the influence domain or the support domain. The concept of dual-support identifies that the influence domain and the support domain involves the duality and should be simultaneously in the SPH formulation when variable smoothing lengths are used. The DS-SPH formulation can be implemented into conventional SPH codes with minimal changes and also without compromising the computational efficiency. A number of numerical examples involving weakly compressible. fluid are presented to demonstrate the capability of the method.
Keywords
- Conservation law, Dual-horizon peridynamics, Dual-support, Duality, SPH, Variable smoothing length
ASJC Scopus subject areas
- Computer Science(all)
- Software
- Mathematics(all)
- Modelling and Simulation
- Computer Science(all)
- Computer Science Applications
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In: CMES - Computer Modeling in Engineering and Sciences, Vol. 121, No. 2, 2019, p. 353-383.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - A dual-support smoothed particle hydrodynamics for weakly compressible fluid inspired by the dual-horizon peridynamics
AU - Ren, Huilong
AU - Zhuang, Xiaoying
AU - Rabczuk, Timon
N1 - Funding information: The authors acknowledge the supports from the ERC-CoG (Computational Modeling and Design of Lithium-ion Batteries (COMBAT)), RISE-BESTOFRAC and National Science Foundation of China (51474157). Acknowledgement: The authors acknowledge the supports from the ERC-CoG (Computational Modeling and Design of Lithium-ion Batteries (COMBAT)), RISE-BESTOFRAC and National Science Foundation of China (51474157).
PY - 2019
Y1 - 2019
N2 - A dual-support smoothed particle hydrodynamics (DS-SPH) that allows variable smoothing lengths while satisfying the conservations of linear momentum, angular momentum and energy is developed. The present DS-SPH is inspired by the dual-support, a concept introduced from dual-horizon peridynamics from the authors and applied here to SPH so that the unbalanced interactions between the particles with different smoothing lengths can be correctly considered and computed. Conventionally, the SPH formulation employs either the influence domain or the support domain. The concept of dual-support identifies that the influence domain and the support domain involves the duality and should be simultaneously in the SPH formulation when variable smoothing lengths are used. The DS-SPH formulation can be implemented into conventional SPH codes with minimal changes and also without compromising the computational efficiency. A number of numerical examples involving weakly compressible. fluid are presented to demonstrate the capability of the method.
AB - A dual-support smoothed particle hydrodynamics (DS-SPH) that allows variable smoothing lengths while satisfying the conservations of linear momentum, angular momentum and energy is developed. The present DS-SPH is inspired by the dual-support, a concept introduced from dual-horizon peridynamics from the authors and applied here to SPH so that the unbalanced interactions between the particles with different smoothing lengths can be correctly considered and computed. Conventionally, the SPH formulation employs either the influence domain or the support domain. The concept of dual-support identifies that the influence domain and the support domain involves the duality and should be simultaneously in the SPH formulation when variable smoothing lengths are used. The DS-SPH formulation can be implemented into conventional SPH codes with minimal changes and also without compromising the computational efficiency. A number of numerical examples involving weakly compressible. fluid are presented to demonstrate the capability of the method.
KW - Conservation law
KW - Dual-horizon peridynamics
KW - Dual-support
KW - Duality
KW - SPH
KW - Variable smoothing length
UR - http://www.scopus.com/inward/record.url?scp=85076632743&partnerID=8YFLogxK
U2 - 10.32604/cmes.2019.05146
DO - 10.32604/cmes.2019.05146
M3 - Article
AN - SCOPUS:85076632743
VL - 121
SP - 353
EP - 383
JO - CMES - Computer Modeling in Engineering and Sciences
JF - CMES - Computer Modeling in Engineering and Sciences
SN - 1526-1492
IS - 2
ER -