Factors Affecting the Significance of Gravity on the Infiltration of a Liquid into a Porous Solid

Chan, Tien-Yin; Hsu, Ching-Tien; Lin, Shun‐Tian

doi:10.1023/b:jopo.0000046354.27879.9b

Cited by 13 publications

(5 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Hamraoui and Nylander [8] provide an analytical approach for setups with a highly dynamic contact angle. In 2004 Chan et al [9] give factors affecting the significance of gravity on infiltration of a liquid into a porous medium. Lockington and Parlange [10] find an equation for the capillary rise in porous media.…”

Section: Introductionmentioning

confidence: 99%

An analytic solution of capillary rise restrained by gravity

Fries

Dreyer

2008

Journal of Colloid and Interface Science

342

224

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 99%

An analytic solution of capillary rise restrained by gravity

Fries

Dreyer

2008

Journal of Colloid and Interface Science

342

224

View full text Add to dashboard Cite

“…In general, it has been found that flows will move slower under lower gravity, but that sediment weighs less, so that sediment transport rates on Earth and Mars scale similarly. It is also expected that infiltration rates will be slower under reduced gravity (Chan et al, 2004). However, we suspect that all of these effects that result from different gravity for Mars conditions (by roughly a factor of three from Earth conditions) should be small (by several orders of magnitude) in comparison to the effect of reduced infiltration due to freezing, and therefore should not change substantially the experimental findings.…”

Section: Caveats To Up-scaling the Experimental Resultsmentioning

confidence: 86%

Enhanced runout and erosion by overland flow at low pressure and sub-freezing conditions: Experiments and application to Mars

Conway

Lamb

Balme

et al. 2011

Icarus

View full text Add to dashboard Cite

We present the results of laboratory experiments to study the sediment transport and erosional capacity of water at current martian temperature and pressure. We have performed laboratory simulation experiments in which a stream of water flowed over test beds at low temperature (~-20 °C) and low pressure (~ 7 mbar). The slope angle was 14° and three sediment types were tested. We compared the erosive ability, runout and resulting morphologies to experiments performed at ambient terrestrial temperature (~ 20°C) and pressure (~ 1000 mbar), and also to experiments performed under low pressure only. We observed that, as expected, water is unstable in the liquid phase at low temperature and low pressure, with boiling and freezing in competition. Despite this, our results show that water at low temperature and low pressure has an equivalent and sometimes greater erosion rate than at terrestrial temperature and pressure. Water flows faster over the sediment body under low temperature and low pressure conditions because the formation of ice below the liquidsediment contact inhibits infiltration. Flow speed and therefore runout distance are increased. Experiments at low pressure but Earth-ambient temperature suggest that flow speeds are faster under these conditions than under Earth-ambient pressure and temperature. We hypothesise that this is due to gas bubbles, created by the boiling of the water under low atmospheric pressure, impeding liquid infiltration. We have found that both basal freezing and low pressure increase the flow propagation speed-effects not included in current models of fluvial activity on Mars. Any future modelling of water flows on Mars should consider this extra mobility and incorporate the large reduction in fluid loss through infiltration into the substrate.

show abstract

“…Following this is the capillary force, which is the L–W region in the wicking phenomenon. Finally, at a larger time scale, as the liquid front travels a longer distance (higher h ), the gravity effect is taken into account for a longer period of time. − It was found that for vertical transportation of liquid flow through porous media for long time intervals, the capillary height ( h ) is related to time ( t ) as considering the gravity effect. , However, as the environmental effects are ignored and the porous media are assumed to be homogeneous, these analytical models failed to accurately predict the experimental data.…”

Section: Introductionmentioning

confidence: 99%

Imbibition of Liquids through a Paper Substrate in a Controlled Environment

Mahapatra

2022

Langmuir

View full text Add to dashboard Cite

Liquid spreading on open surfaces is a widely observed phenomenon. The physics of liquid spreading has become more complex when the surface is porous like paper or fabrics due to the evaporation of the liquid and swelling of the fibers. In this study, we have performed liquid imbibition experiments on paper strips in a controlled environment with and without using hydrophobic boundaries. The experimental results are compared to the existing analytical models that account for each effect separately. The existing models were found to be inaccurate in predicting the experimental results. We developed new analytical models by modifying existing models to predict the capillary rise of the liquid through the paper substrate accurately. Different effects, such as the barrier (hydrophobic boundary), evaporation, and swelling, are considered simultaneously while developing the modified models to mimic the exact practical situation for the first time. We discovered that the modified models predict the experimental results more accurately than the existing models. For cases with and without barriers, the final models considering several effects simultaneously predict the data with a maximum error range of 7 and 10%, respectively. Finally, we conducted capillary rise experiments with volatile (water) and non-volatile (silicon oil) liquids at various temperatures and under various relative humidity conditions to validate the analytical results.

show abstract

Factors Affecting the Significance of Gravity on the Infiltration of a Liquid into a Porous Solid

Cited by 13 publications

References 3 publications

An analytic solution of capillary rise restrained by gravity

An analytic solution of capillary rise restrained by gravity

Enhanced runout and erosion by overland flow at low pressure and sub-freezing conditions: Experiments and application to Mars

Imbibition of Liquids through a Paper Substrate in a Controlled Environment

Contact Info

Product

Resources

About