Microgravity Investigation of Capillary Driven Imbibition

被引：28

作者：

Dushin, V. R. ^{[1
]}

Nikitin, V. F. ^{[1
,2
]}

Smirnov, N. N. ^{[1
,2
]}

Skryleva, E. I. ^{[1
,2
]}

Tyurenkova, V. V. ^{[1
,2
]}

机构：

[1] Moscow MV Lomonosov State Univ, Leninskie Gory 1, Moscow 119992, Russia

[2] Russian Acad Sci, Sci Res Inst Syst Anal, 36-1 Nakhimovskiy Pr, Moscow 117218, Russia

来源：

MICROGRAVITY SCIENCE AND TECHNOLOGY | 2018年 / 30卷 / 04期

基金：

俄罗斯基础研究基金会;

关键词：

Microgravity; Imbibition; Capillary forces; Porous media; Seepage flows; POROUS-MEDIA; INSTABILITY; FILTRATION; FLUIDS; FLOWS;

D O I：

10.1007/s12217-018-9623-8

中图分类号：

V [航空、航天];

学科分类号：

08 ; 0825 ;

摘要：

The goal of the present paper is to investigate the capillary driven filtration in porous media under microgravity conditions. New mathematical model that allows taking into account the blurring of the front due to the instability of the displacement that is developing at the front is proposed. The constants in the mathematical model were selected on the basis of the experimental data on imbibition into unsaturated porous media under microgravity conditions. The flow under the action of a combination of capillary forces and a constant pressure drop or a constant flux is considered. The effect of capillary forces and the type of wettability of the medium on the displacement process is studied. A criterion in which case the capillary effects are insignificant and can be neglected is established.

引用

页码：393 / 398

页数：6

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