Evaluation of drag force on a nonuniform particle distribution with a meshless method

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一个无网孔的没有元素的 Galerkin (EFG ) 方法被用来直接在二种尺寸模仿使液化过程。粒子上的 drag 力量被集成压力获得并且砍粒子表面上的力量。结果证明无网孔的方法能够处理真实粒子碰撞,因此比在与经常的粒子碰撞和合适的空部分反映使液化过程的很基于网孔的方法优异。粒子分发极大地甚至为一样的 voidage 影响 drag 系数,也就是说,在一般水准有大差别拖在不一致、一致的粒子分布之间的系数。不同压缩方向也有不同整齐,因此象皮脂腺囊瘤和于和 Felice 模型那样的常规公式在如此的不一致的分布
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