An improved moving particle semi-implicit method
for dam break simulation
An improved moving particle semi-implicit method
for dam break simulation
Dam break is quite a common and hazard phenomenon in shipbuilding and ocean engineering. The objective of this study is to investigate dam break hydrodynamics with improved Moving Particle Semi-implicit method (MPS). Compared to traditional mesh methods, MPS is feasible to simulate surface flows with large deformation, however, during the simulation, the pressure oscillates violently, due to misjudgment of surface particles as well as particles gathering together. To modify these problems, a new arc method is applied to judge free surface particles, and a collision model is introduced to avoid particles from gathering together. Hydrostatic pressure is simulated by original and improved MPS. The results verify that improved MPS method is more effective. Based on these, dam break model is investigated with improved MPS.
1044-1054
Wu, Qiaorui
b6c36c7d-22ce-4f9c-b34d-230c5e493d07
Tan, M.
4d02e6ad-7915-491c-99cc-a1c85348267c
Xing, J.T.
d4fe7ae0-2668-422a-8d89-9e66527835ce
September 2014
Wu, Qiaorui
b6c36c7d-22ce-4f9c-b34d-230c5e493d07
Tan, M.
4d02e6ad-7915-491c-99cc-a1c85348267c
Xing, J.T.
d4fe7ae0-2668-422a-8d89-9e66527835ce
Abstract
Dam break is quite a common and hazard phenomenon in shipbuilding and ocean engineering. The objective of this study is to investigate dam break hydrodynamics with improved Moving Particle Semi-implicit method (MPS). Compared to traditional mesh methods, MPS is feasible to simulate surface flows with large deformation, however, during the simulation, the pressure oscillates violently, due to misjudgment of surface particles as well as particles gathering together. To modify these problems, a new arc method is applied to judge free surface particles, and a collision model is introduced to avoid particles from gathering together. Hydrostatic pressure is simulated by original and improved MPS. The results verify that improved MPS method is more effective. Based on these, dam break model is investigated with improved MPS.
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Published date: September 2014
Organisations:
Civil Maritime & Env. Eng & Sci Unit
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Local EPrints ID: 372555
URI: http://eprints.soton.ac.uk/id/eprint/372555
ISSN: 1007-7294
PURE UUID: 57ebc387-3aea-473d-b7c9-db64691ad761
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Date deposited: 16 Dec 2014 11:43
Last modified: 14 Mar 2024 18:39
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Author:
Qiaorui Wu
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