• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Granular matter >Discrete-particle simulations of cohesive granular flow using a square-well potential
【24h】

Discrete-particle simulations of cohesive granular flow using a square-well potential

机译：使用方阱势的粘性颗粒流离散粒子模拟

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

In the present study, rapid granular flows with attractive inter-particle forces are investigated. In particular, cohesive forces are incorporated into hard-sphere (molecular dynamics) simulations via a square-well potential. The square-well potential treats cohesive forces as both binary and instantaneous. For simple shear flows, an investigation of the input parameter space indicates that two distinct flow regimes are present. For relatively large cohesive forces, the formation of a large, single agglomerate is observed. For moderate cohesive forces, the sheared system is composed of mostly 2-particle, dynamic agglomerates that are fairly evenly distributed throughout the domain. Furthermore, the results for this latter regime indicate that cohesion attenuates the magnitude of the stress components at higher solids fractions (in the colli-sional regime) as compared to the non-cohesive case. At lower solids fractions (kinetic regime), however the presence of cohesive forces has little impact on the observed stress.
机译：在本研究中，研究了具有吸引力的粒子间力的快速颗粒流。特别是，内聚力通过平方阱电势并入硬球（分子动力学）模拟中。平方阱电势将内聚力视为二进制和瞬时。对于简单的剪切流，对输入参数空间的研究表明存在两种不同的流态。对于较大的内聚力，观察到形成大的单个团聚物。对于适度的内聚力，剪切系统主要由2个粒子组成，它们在整个域中相当均匀地分布。此外，后一种情况的结果表明，与非内聚情况相比，内聚力会降低较高固含量（在碰撞状态下）的应力分量的大小。在较低的固含量（运动状态）下，内聚力的存在对观察到的应力影响很小。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号