Proceedings of the 2016 International Conference on Advances in Energy, Environment and Chemical Science

An Improved Density Reinitialization Method for Dam Break Simulation with SPH

Authors
Song Chai, Guoping Miao
Corresponding Author
Song Chai
Available Online May 2016.
DOI
https://doi.org/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.
Open Access
This is an open access article distributed under the CC BY-NC license.

Download article (PDF)

Proceedings
2016 International Conference on Advances in Energy, Environment and Chemical Science
Part of series
Advances in Engineering Research
Publication Date
May 2016
ISBN
978-94-6252-194-0
ISSN
2352-5401
DOI
https://doi.org/10.2991/aeecs-16.2016.41How to use a DOI?
Open Access
This is an open access article distributed under the CC BY-NC license.

Cite this article

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  - 2016 International Conference on Advances in Energy, Environment and Chemical Science
PB  - Atlantis Press
SN  - 2352-5401
UR  - https://doi.org/10.2991/aeecs-16.2016.41
DO  - https://doi.org/10.2991/aeecs-16.2016.41
ID  - Chai2016/05
ER  -