WIT Press


Upscaling NAPL Transport: Direct Calculation Of Local Properties On A Network

Price

Free (open access)

Paper DOI

10.2495/ENV000191

Volume

41

Pages

10

Published

2000

Size

823 kb

Author(s)

A. Ahmadi & M. Quintal

Abstract

NAPL transport in geological formations is currently receiving a great deal of attention for issues such as remediation of contaminated groundwater. NAPL dissolves into the water phase in a process referred to as active dispersion. A Volume Averaging Method has been used to upscale the dispersion phenomenon in presence of a trapped NAPL. Thus, the active dispersion tensor and the mass exchange coefficient are directly related to the micro-scale properties through two pore-scale closure problems. These problems have been solved numerically previously over a unit cell using a finite volume formulation. However, this numerical resolution, based on a detailed discretisation of the pore structure is limited to simple unit cells containing a small number of por

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