An Improved Density Reinitialization Method for Dam Break Simulation with SPH
- Song Chai, Guoping Miao
- Corresponding Author
- Song Chai
Available Online May 2016.
- https://doi.org/10.2991/aeecs-16.2016.41How to use a DOI?
- density reinitialization; dam break; smoothed particle hydrodynamics; pressure oscillation; self-adaptive
- 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.
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 -