Smoothed particle hydrodynamics method with partially defined fluid particles

Smoothed particle hydrodynamics method with partially defined fluid particles This paper presents a method for nested fluid simulation based on smoothed particle hydrodynamics. Given suitable background flow information of an “external flow” as it evolves in time, our method simulates the motion of particles only within a local material region. In order to perform the simulation, the background physical quantities need to be transferred to the local fluid particles. We employ ghost particles to carry the given physical quantities to the nested fluid. We also solve the problem of density computation appropriately for the ghost particles. Our numerical tests show that accurate local fluid motion can be obtained in such a nested volume of fluid particles. Copyright © 2016 John Wiley & Sons, Ltd. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Mathematical Methods in the Applied Sciences Wiley

Smoothed particle hydrodynamics method with partially defined fluid particles

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Publisher
Wiley Subscription Services, Inc., A Wiley Company
Copyright
Copyright © 2018 John Wiley & Sons, Ltd.
ISSN
0170-4214
eISSN
1099-1476
D.O.I.
10.1002/mma.4252
Publisher site
See Article on Publisher Site

Abstract

This paper presents a method for nested fluid simulation based on smoothed particle hydrodynamics. Given suitable background flow information of an “external flow” as it evolves in time, our method simulates the motion of particles only within a local material region. In order to perform the simulation, the background physical quantities need to be transferred to the local fluid particles. We employ ghost particles to carry the given physical quantities to the nested fluid. We also solve the problem of density computation appropriately for the ghost particles. Our numerical tests show that accurate local fluid motion can be obtained in such a nested volume of fluid particles. Copyright © 2016 John Wiley & Sons, Ltd.

Journal

Mathematical Methods in the Applied SciencesWiley

Published: Jan 1, 2018

Keywords: ;

References

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