...
首页> 外文期刊>Physica, A. Statistical mechanics and its applications >SELF-DIFFUSION IN DISPERSIONS OF CHARGED COLLOIDAL SPHERES BY GENERALIZED HYDRODYNAMICS
【24h】

SELF-DIFFUSION IN DISPERSIONS OF CHARGED COLLOIDAL SPHERES BY GENERALIZED HYDRODYNAMICS

机译:广义流体动力学在带电胶体球分散体中的自扩散

获取原文
获取原文并翻译 | 示例
           

摘要

The generalized hydrodynamics formalism for the collective and single particle suspension dynamics is solved for dispersions of strongly interacting particles as a function of surface charge. Both collective and single particle properties are compared to results from large-scale Brownian dynamics simulations, enabling the evaluation of the viscoelastic and short-time approximations for the memory functions. Unlike the short-time approximation, the viscoelastic approximation yields good predictions for time-integrated properties, such as shear viscosity and self-diffusion. However, the simplified dynamics inherent in the viscoelastic ansatz are found to be too crude to fully capture the time-evolution of the dynamic structure. At high surface charge the viscoelastic ansatz results in a critical slowing of the self and collective dynamics similar to observations near the ideal glass transition. This behavior is attributed to the self and collective dynamics similar to observations near the ideal glass transition. This behavior is attributed to the self-consistent nature of the solution for the dynamics. [References: 43]
机译:解决了集体和单个粒子悬浮动力学的广义流体动力学形式主义,以解决强相互作用粒子作为表面电荷函数的分散问题。将集体和单个粒子的特性与大规模布朗动力学仿真的结果进行比较,从而可以评估存储功能的粘弹性和短时近似。与短时近似不同,粘弹性近似可以很好地预测时间积分特性,例如剪切粘度和自扩散。但是,发现粘弹性ansatz固有的简化动力学过于粗糙,无法完全捕获动力学结构的时间演化。在高表面电荷的情况下,粘弹性ansatz导致自我和集体动力学的严重减慢,类似于理想玻璃化转变附近的观察结果。这种行为归因于自我和集体动力学,类似于理想玻璃化转变附近的观察结果。此行为归因于动力学解决方案的自洽性质。 [参考:43]

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