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Technical University of Crete
Technical University of Crete
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| URI: | http://purl.tuc.gr/dl/dias/715B4B5F-FB4F-4482-BAED-47F87D7152A3 | ||
| Year | 2001 | ||
| Type of Item | Peer-Reviewed Journal Publication | ||
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| Bibliographic Citation | E. T. Vogler ,C. V. Chrysikopoulos, "Dissolution of nonaqueous phase liquid pools in anisotropic aquifers " ,Stoch. Environ.Research and Risk Ass. ,vol.15, no.1, pp. 33-46,2001.doi :10.1007/PL00009787 https://doi.org/10.1007/PL00009787 | ||
| Appears in Collections |
A two-dimensional numerical transport model is developed to determine the effect of aquifer anisotropy and heterogeneityon mass transfer from a dense nonaqueous phase liquid (DNAPL) pool. The appropriate steady state groundwater flow equationis solved implicitly whereas the equation describing the transport of a sorbing contaminant in a confined aquifer is solvedby the alternating direction implicit method. Statistical anisotropy in the aquifer is introduced by two-dimensional, randomlog-normal hydraulic conductivity field realizations with different directional correlation lengths. Model simulations indicatethat DNAPL pool dissolution is enhanced by increasing the mean log-transformed hydraulic conductivity, groundwater flow velocity,and/or anisotropy ratio. The variance of the log-transformed hydraulic conductivity distribution is shown to be inverselyproportional to the average mass transfer coefficient.
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