An Improved Density Reinitialization Method for Dam Break Simulation with SPH

DOI

10.2991/aeecs-16.2016.41How to use a DOI?

Keywords

density reinitialization; dam break; smoothed particle hydrodynamics; pressure oscillation; self-adaptive

Abstract

In this work, the realization of density reinitialization with Smoothed Particle Hydrodynamics (SPH) techniques is examined. A self-adaptive density reinitialization method is proposed. Instead of using fixed step intervals for reinitialization, this method obtains oscillation of density field by introducing two variables for measuring the density variation acceleration and defining the density variation criteria; and then performs density reinitialization once oscillation exceeds the criteria which is self-adjusted according to the density field. Numerical test on two-dimension dam break illustrates that this method is able to adjust the reinitialization frequency according to density field oscillation during SPH simulation, while achieving good accuracy.

Copyright

© 2016, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Song Chai
AU  - Guoping Miao
PY  - 2016/05
DA  - 2016/05
TI  - An Improved Density Reinitialization Method for Dam Break Simulation with SPH
BT  - Proceedings of the 2016 International Conference on Advances in Energy, Environment and Chemical Science
PB  - Atlantis Press
SP  - 194
EP  - 200
SN  - 2352-5401
UR  - https://doi.org/10.2991/aeecs-16.2016.41
DO  - 10.2991/aeecs-16.2016.41
ID  - Chai2016/05
ER  -