Miscible Displacement: IV. Mixing in Glass Beads1
- D. R. Nielsen and
- J. W. Biggar2
A column of 390µ glass beads was used in a series of miscible displacement experiments to investigate over a wide range of flow velocities the contributions of diffusion and variations in pore-water velocities to mixing. The two fluids were aqueous solutions of Na2SO4 and NaCl having equal densities and with tritium added to the NaCl. A desired minimum solute-solid interaction was obtained as indicated by the data. It was found that diffusion causes a significant amount of mixing during displacement. An application of the information to the movement of nutrients in the soil moisture stream is discussed.Please view the pdf by using the Full Text (PDF) link under 'View' to the left.
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