Spectral Analysis of the General Singular Transport Operator with Periodic Boundary Conditions

Wang, Shenghua; Deng-bin, Yuan

doi:10.3724/sp.j.1160.2010.00239

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2012

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“…Scholars in different countries and regions of the world did a lot of studies on the seepage characteristics of porous media. Yuan R and Albert S. Kim [5] used Darcy-Brinkman extended equation to portray the fluid permeability in porous media with quadratic change. Li Shuncai et al [6] used the nonlinear bifurcation and catastrophe theory to study the dynamic mechanism of the instability gas seepage in broken rocks.…”

Section: Introductionmentioning

confidence: 99%

Experiment Study on the Relationship between the Height of Capping Layer and the Porosity of Broken Rocks

2012

AMR

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The gas seepage characteristics of four kinds of broken rocks of different gradations and the relationship between the capping height and the porosity were studied by means of the simulation experiment and the theoretical analysis. The results show that the air flow in the capping layer composed of broken rocks is in the non-Darcy state which can be described as Forchheimer equation and Ergun equation. Moreover, on the basis of the experimental data, the relational expressions between the permeability, the non-Darcy β factor and the porosity were determined. Through the numerical fitting, the equation of the minimum capping height and the porosity was ultimately derived, which provided the basis and the reference for the determination of capping height and the air leakage control of mine.

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Section: Introductionmentioning

confidence: 99%

Experiment Study on the Relationship between the Height of Capping Layer and the Porosity of Broken Rocks

2012

AMR

View full text Add to dashboard Cite

show abstract

Spectral Analysis of the General Singular Transport Operator with Periodic Boundary Conditions

Cited by 1 publication

References 2 publications

Experiment Study on the Relationship between the Height of Capping Layer and the Porosity of Broken Rocks

Experiment Study on the Relationship between the Height of Capping Layer and the Porosity of Broken Rocks

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