Abstract
| Language | English |
|---|---|
| Pages | 351-373 |
| Number of pages | 23 |
| Journal | Journal of Fluid Mechanics |
| Volume | 343 |
| DOIs | |
| State | Published - 1997 |
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Wave propagation in porous media containing a dilute gas–liquid mixture: theory and experiments. / Smeulders, D.M.J.; Dongen, van, M.E.H.
In: Journal of Fluid Mechanics, Vol. 343, 1997, p. 351-373.Research output: Contribution to journal › Article › Academic › peer-review
TY - JOUR
T1 - Wave propagation in porous media containing a dilute gas–liquid mixture: theory and experiments
AU - Smeulders,D.M.J.
AU - Dongen, van,M.E.H.
PY - 1997
Y1 - 1997
N2 - The influence of a small amount of gas within the saturating liquid of a porous medium on acoustic wave propagation is investigated. It is assumed that the gas volumes are spherical, homogeneously distributed, and that they are within a very narrow range of bubble sizes. It is shown that the compressibility of the saturating fluid is determined by viscous, thermal, and a newly introduced Biot-type damping of the oscillating gas bubbles, with mean gas bubble size and concentration as important parameters. Using a super-saturation technique, a homogeneous gas–liquid mixture within a porous test column is obtained. Gas bubble size and concentration are measured by means of compressibility experiments. Wave reflection and propagation experiments carried out in a vertical shock tube show pore pressure oscillations, which can be explained by incorporating a dynamic gas bubble behaviour in the linear Biot theory for plane wave propagation.
AB - The influence of a small amount of gas within the saturating liquid of a porous medium on acoustic wave propagation is investigated. It is assumed that the gas volumes are spherical, homogeneously distributed, and that they are within a very narrow range of bubble sizes. It is shown that the compressibility of the saturating fluid is determined by viscous, thermal, and a newly introduced Biot-type damping of the oscillating gas bubbles, with mean gas bubble size and concentration as important parameters. Using a super-saturation technique, a homogeneous gas–liquid mixture within a porous test column is obtained. Gas bubble size and concentration are measured by means of compressibility experiments. Wave reflection and propagation experiments carried out in a vertical shock tube show pore pressure oscillations, which can be explained by incorporating a dynamic gas bubble behaviour in the linear Biot theory for plane wave propagation.
U2 - 10.1017/S0022112097005983
DO - 10.1017/S0022112097005983
M3 - Article
VL - 343
SP - 351
EP - 373
JO - Journal of Fluid Mechanics
T2 - Journal of Fluid Mechanics
JF - Journal of Fluid Mechanics
SN - 0022-1120
ER -