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Pattern Formation in Fluid Injection into Granular Media:

Pattern Formation in Fluid Injection into Granular Media: Transition from Viscous Fingering to Hydraulic Fracturing Haiying Huang, School of Civil and Environmental Engineering Georgia Institute of Technology. Flow velocity.

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Pattern Formation in Fluid Injection into Granular Media:

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  1. Pattern Formation in Fluid Injection into Granular Media: Transition from Viscous Fingering to Hydraulic Fracturing Haiying Huang, School of Civil and Environmental Engineering Georgia Institute of Technology Flow velocity Displacement patterns created when aqueous glycerin solutions at various concentrations were injected into a Hele-Shaw cell filled with dense dry sands. The displacement patterns emerge as a result of competition among various mechanisms of energy dissipation and range from simple radial permeation for the low velocity and low viscosity case to the viscous fingering type of pattern for the high velocity and high viscosity case. Fluid viscosity Light colored area – dry sands only; black area – fluid only (no grains); brown area – infiltrated area (fluid and sand grains)

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