...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Transport in Porous Media >Numerical Simulation of 3D Liquid–Gas Distribution in Porous Media by a Two-Phase TRT Lattice Boltzmann Method
【24h】

Numerical Simulation of 3D Liquid–Gas Distribution in Porous Media by a Two-Phase TRT Lattice Boltzmann Method

机译：两相TRT格子Boltzmann方法数值模拟多孔介质中3D气态分布

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

The 3D description of the soil structure at the pore scale level can help to elucidate the biological functioning of soil. The water–air distribution in the 3D-pore space is of particular interest because it determines the diffusion pathways of nutrients and the localisation of active soil microorganisms. We used the Shan–Chen interparticle-potential approach to simulate spontaneous phase separation in complex academic and real 3D-porous media using the advanced TRT lattice Boltzmann scheme. The equation of state and phase diagram were calculated and the model was verified using hydrostatic laws. The 3D pattern of water/air interface in two complex academic pore geometries was accurately computed. Finally, 3D maps of static liquid–gas distribution were simulated in a real 3D X-ray computed tomography image obtained from an undisturbed soil column sampled in a silty clay loam soil. The simulated soil sample of 1.7 cm3 was described at a voxel-resolution of 60 μm. The range of the simulated saturations (from 0.5 to 0.9) was in a good agreement with the expected saturations calculated from the phase diagram.
机译：在孔隙尺度水平上对土壤结构的3D描述可以帮助阐明土壤的生物学功能。 3D孔隙空间中的水-空气分布特别受关注，因为它决定了养分的扩散途径和活性土壤微生物的定位。我们使用Shan–Chen粒子间电势方法，使用先进的TRT格子Boltzmann方案模拟复杂的学术和真实3D多孔介质中的自发相分离。计算了状态方程和相图，并使用静水定律验证了模型。精确计算了两个复杂的学术孔隙几何形状中水/空气界面的3D模式。最后，在真实的3D X射线计算机断层摄影图像中模拟了静态液体-气体分布的3D地图，该图像是从粉质粘土壤土中取样的未扰动土壤柱中获得的。描述的1.7cm3的模拟土壤样品的体素分辨率为60μm。模拟饱和度的范围（从0.5到0.9）与根据相图计算出的预期饱和度非常一致。

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