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| Application of the Modified SPH Method to the simulation of free surface |
| Received:August 20, 2010 Revised:February 28, 2011 |
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| DOI：10.7511/jslx20121012 |
| KeyWord:Modified SPH density re-initialization solid wall boundaries free surface pressure |
| Author | Institution |
| 任金莲 |
西北工业大学 理学院, 西安 |
| 欧阳洁 |
西北工业大学 理学院, 西安 |
| 蒋涛 |
西北工业大学 理学院, 西安 |
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| Abstract: |
| The standard SPH method was modified and implemented to simulate the dam-break by proposing a density re-initialization method,presenting a new treatment of solid walls.The validity of the modified SPH method and its application to free surface are verified by simulating the stretch of the liquid drop and dam-break without a perforated block,the effect of density re-initialization on the flow was analyzed.Results show the accuracy and stability of the standard SPH are improved by the modified SPH method.At last,the dam-break with a perforated block and with a baffle board next to the fluid are simulated by the modified SPH method,comparing the pressure distribution on the upright wall with and without the perforated block.Numerical results show that the perforated block can decrease the value of the pressure on the upright wall; having or not having a baffle board,the aspect ratio of the water column and the location of the baffle board have an important effect on the phenomena of dam-break. |
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