Publication: Sensitivities of Flow and Transport Parameters Using Automatic Differentiation
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Sensitivities of Flow and Transport Parameters Using Automatic Differentiation

- Article in a journal -
 

Area
Oceanography

Author(s)
T. Vogel , D. Bachmann , A. Hauschild , H. M. Bücker , J. Köngeter

Published in
International Journal for Numerical Methods in Engineering

Year
2006

Abstract
The hydraulic complexity of hardrock aquifers with, for example, fast fluid flow in fractures, storage effects in the rock matrix, high contrasts in permeability, and a high spatial variability of structures requires a high standard of experimental and numerical techniques. This paper focuses on the interpretation of tracer tests. The sensitivity of tracer breakthrough curves with respect to flow and transport parameters is analyzed for different model types in order to identify the relevant flow and transport processes. This leads to a better understanding of the system behavior and facilitates the interpretation of experimental results. The technique of automatic differentiation is used to evaluate the sensitivities. The main advantage of this technique is that the sensitivities are calculated without truncation error.

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- Sensitivities of Flow and Transport Parameters

BibTeX
@ARTICLE{
         Vogel2006SoF,
       author = "T. Vogel and D. Bachmann and A. Hauschild and H. M. B{\"u}cker and J.
         K{\"o}ngeter",
       title = "Sensitivities of Flow and Transport Parameters Using Automatic Differentiation",
       journal = "International Journal for Numerical Methods in Engineering",
       volume = "65",
       number = "12",
       pages = "1923--1934",
       doi = "http://dx.doi.org/10.1002/nme.1516",
       abstract = "The hydraulic complexity of hardrock aquifers with, for example, fast fluid flow in
         fractures, storage effects in the rock matrix, high contrasts in permeability, and a high spatial
         variability of structures requires a high standard of experimental and numerical techniques. This
         paper focuses on the interpretation of tracer tests. The sensitivity of tracer breakthrough curves
         with respect to flow and transport parameters is analyzed for different model types in order to
         identify the relevant flow and transport processes. This leads to a better understanding of the
         system behavior and facilitates the interpretation of experimental results. The technique of
         automatic differentiation is used to evaluate the sensitivities. The main advantage of this
         technique is that the sensitivities are calculated without truncation error.",
       year = "2006",
       ad_area = "Oceanography",
       ad_tools = "ADIFOR"
}


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