AN IMPROVEMENT OF ACCURACY OF THE MPS METHOD WITH A NEW GRADIENT CALCULATION MODEL
AN IMPROVEMENT OF ACCURACY OF THE MPS METHOD WITH A NEW GRADIENT CALCULATION MODEL
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一种新的梯度计算模型提高了MPS方法的精度
DOI：
10.2208/kaigan.67.36
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发表时间：
2011
影响因子：
--
通讯作者：
E. Nakaza
中科院分区：
文献类型：
--
作者：
T. Iribe;E. Nakaza
在海岸工程领域，质点法有望在波浪破碎和流固耦合的三维数值模拟方面取得突破性进展。虽然有研究表明质点法的精度不如有限元法和有限差分法。而粒子法（MPS法）作为一种有用的模拟工具，在复杂的三维水流分析中得到了广泛的应用。作者解析地提出了一种新的MPS方法梯度算子的计算模型。数值结果表明，该模型具有较高的精度和计算稳定性。具有这种高精度的MPS方法可以揭示在储水罐中产生的驻波的破波的发生。
In the coastal engineering field, the particle method is expected to give a breakthrough for three dimensional numerical simulations on wave breaking and flui d-structure interaction. Although some researches show that particle method has less accuracy than both finite element method and finite difference method. The particle method (MPS method) has, however, frequ ently been used as a useful simulation tool in analysis of complex three dimensional water flow. The authors analytically propose a new calculation model of the gradient operator for the MPS method. The numerical results using this new model show high accuracy and computational stability. The MPS method with this high accuracy can disclose the occurrence of wave breaking of a standing wave generated in a water storage tank.
影响因子：
1.2
作者：
Koshizuka, S;Oka, Y
通讯作者：
Oka, Y