DIFFUSION PROPAGATOR AS A PROBE OF THE STRUCTURE OF POROUS-MEDIA

被引：486

作者：

MITRA, PP

SEN, PN

SCHWARTZ, LM

LEDOUSSAL, P

机构：

[1] SCHLUMBERGER DOLL RES CTR,RIDGEFIELD,CT 06877

[2] INST ADV STUDY,PRINCETON,NJ 08540

来源：

PHYSICAL REVIEW LETTERS | 1992年 / 68卷 / 24期

关键词：

D O I：

10.1103/PhysRevLett.68.3555

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We propose a simple ansatz that relates the diffusion propagator for the molecules of a fluid confined in a porous medium to the pore-space structure factor. Theoretical arguments and numerical simulations show that it works well for both periodic and disordered geometries. The ansatz allows us to deconvolve structural data from momentum dependent pulsed field gradient spin-echo data.

引用

页码：3555 / 3558

页数：4

共 16 条

[1] USE OF DIGITAL IMAGE-ANALYSIS TO ESTIMATE FLUID PERMEABILITY OF POROUS MATERIALS - APPLICATION OF 2-POINT CORRELATION-FUNCTIONS [J].