APPLICABILITY OF THE REYNOLDS-EQUATION FOR MODELING FLUID-FLOW BETWEEN ROUGH SURFACES

被引：150

作者：

BROWN, SR ^{[1
]}

STOCKMAN, HW ^{[1
]}

REEVES, SJ ^{[1
]}

机构：

[1] SANDIA NATL LABS,DEPT GEOCHEM,ALBUQUERQUE,NM 87185

来源：

GEOPHYSICAL RESEARCH LETTERS | 1995年 / 22卷 / 18期

关键词：

D O I：

10.1029/95GL02666

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

Predictions of the Reynolds equation for flow between rough-walled surfaces have been compared to a more exact calculation of Navier-Stokes flow based on a lattice-gas automaton method. Two-dimensional channels were constructed with an idealized sinusoidal roughness on each wall. Flow in the channels was studied by both methods for various amplitude to wavelength ratios of the roughness, surface separations, relative alignment or phase of the sinusoids, and Reynolds numbers. The Reynolds equation overestimates fluid velocity as the surfaces are placed together or the amplitude of the roughness increases relative to its wavelength.

引用

页码：2537 / 2540

页数：4

共 13 条

[1] FLUID-FLOW THROUGH ROCK JOINTS - THE EFFECT OF SURFACE-ROUGHNESS [J].