Multiple‐Peak Response to Tracer Injection Tests in Single Fractures: A Numerical Study
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Publication Date
8-1-1991
Publication Title
Water Resources Research
Volume Number
27
Issue Number
8
Abstract
Under certain conditions, when pulse tracer injection tests are performed in a single fracture with a regional flow field, the breakthrough curves may display multiple peaks. Furthermore, the shape of these curves may change when the injection flow rate is varied. In this paper the conditions under which the breakthrough curve may present multiple peaks are analyzed numerically using stochastically generated fractures. The dispersivities of these peaks are also calculated. It is found that the dispersivity is small for each of the peaks and that the dispersivities of the different peaks in a breakthrough curve are quite similar. The results presented in this paper may be equally applied to tracer tests in a two‐dimensional strongly heterogeneous medium.
Document Type
Article
Digital Object Identifier (DOI)
https://doi.org/10.1029/91WR00507
Language
English
Recommended Citation
Moreno, Luis and Tsang, Chin Fu, "Multiple‐Peak Response to Tracer Injection Tests in Single Fractures: A Numerical Study" (1991). KIP Articles. 9945.
https://digitalcommons.usf.edu/kip_articles/9945
