...
首页> 外文期刊>Adsorption >Modelling relaxation processes for fluids in porous materials using dynamic mean field theory: application to pore networks
【24h】

Modelling relaxation processes for fluids in porous materials using dynamic mean field theory: application to pore networks

机译:使用动态平均场理论对多孔材料中流体的松弛过程进行建模:在孔网络中的应用

获取原文
获取原文并翻译 | 示例
           

摘要

We present an application of a recently developed dynamic mean field theory to the study of relaxation dynamics in adsorption and desorption from pore networks. The theory predicts the evolution of density distribution in the system, based on an underlying free energy functional from static mean field theory and the system evolves to equilibrium or metastable equilibrium states consistent with the static theory. The theory makes it possible to follow the evolution of the density distribution with time in response to a change in the bulk pressure or chemical potential. We compare uptake dynamics for a 2D slit pore network with that in a single slit pore. We see more rapid uptake dynamics in the pore network in some cases, due to the greater access of the pore space to the bulk. We also observe that the formation of liquid bridges can slow down the mass transfer in the pore network in certain situations.
机译:我们目前应用最新开发的动态平均场理论来研究松弛动力学在孔隙网络吸附和解吸中的动力学。该理论基于静态均场理论的潜在自由能函数,预测了系统中密度分布的演化,并且系统演化为与静态理论一致的平衡或亚稳态平衡态。该理论使响应体积压力或化学势的变化随时间变化的密度分布成为可能。我们比较了二维缝隙孔网络和单个缝隙孔网络的吸收动力学。在某些情况下,由于孔隙空间更容易进入主体,因此在孔隙网络中我们看到了更快的吸收动力学。我们还观察到,在某些情况下,液桥的形成会减慢孔网络中的传质速度。

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