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| Numerical simulation of water entry for two-dimensional wedge by MPS |
| Received:August 09, 2016 Revised:October 18, 2016 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7511/jslx201703013 |
| KeyWord:MPS 2-D wedge water entry different layout methods of particles different deadrise angles |
| Author | Institution |
| 陈翔 |
上海交通大学 船舶海洋与建筑工程学院 海洋工程国家重点实验室 高新船舶与深海开发装备协同创新中心, 上海 20040 |
| 饶成平 |
上海交通大学 船舶海洋与建筑工程学院 海洋工程国家重点实验室 高新船舶与深海开发装备协同创新中心, 上海 20040 |
| 万德成 |
上海交通大学 船舶海洋与建筑工程学院 海洋工程国家重点实验室 高新船舶与深海开发装备协同创新中心, 上海 20040 |
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| Abstract: |
| Water impact has been a typical problem in ocean engineering.When a vessel sails in the ocean under serious conditions,slamming impact between the structure and water can be huge.The phenomena such as the drastic change of wetted region and the fragmentation and overturning of free surface will happen with the slamming.In this paper,an in-house mesh-free particle solver MLParticle-SJTU,which is developed based on improved moving particle semi-implicit (MPS) method,is employed to numerically simulate the water entry of a two-dimensional (2-D) wedge.The water entry of wedge model with its deadrise angle of 30° is simulated.The effects of two different layout method of particles on vertical force and deformation of free surface are investigated.And the results of MPS are in a good agreement with the results of MLM (Modified Logvinovich Model).In addition,the wedges with different deadrise angles is modeled to study its effects on vertical force and free surface.The agreement of vertical force before flow separation between MPS and MLM is very good which proves the validity of MPS in the research of water entry problems. |