A systematic analysis on the use of the lattice Boltzmann method (LBM) for predicting the permeability of packed beds is presented. A filtration rig is used to obtain permeability measurements of beds of glass beads, sand and crushed minerals. Subsequently, X-ray microtomography is employed to image bed samples for use as input to LBM calculations. Uncertainties in accuracy and reliability of p...

A hydromechanical envelope that governs the onset of soil erosion by seepage-induced internal instability is examined with reference to theoretical and laboratory stress-gradient paths for one-dimensional upward downward seepage flow. The method validated from permeameter test results on glass ballotini. Using theory, analysis a database 22 gradations establishes semi-empirical relation between...

Abstract. Construction of cavities in the subsurface is always accompanied by excavation damage. Especially context deep geological nuclear waste disposal, evolving damaged zone (EDZ) near field emplacement tunnels utmost importance concerning safety aspects. As EDZ differs from intact host rock due to enhanced hydraulic transmissivity and altered geomechanical behavior, reasonable location-dep...

Abstract Results of ice-stream models that treat temperate ice deformation as a two-phase flow are sensitive to the permeability. We have constructed and begun using custom, falling-head permeameter for measuring permeability temperate, polycrystalline ice. Chilled water is passed through an disk kept at pressure-melting temperature while rate head decrease indicates Fluorescein dye in allows w...