Journal cover Journal topic
Geoscientific Model Development An interactive open-access journal of the European Geosciences Union
https://doi.org/10.5194/gmdd-7-631-2014
© Author(s) 2014. This work is distributed under
the Creative Commons Attribution 3.0 License.
Methods for assessment of models
17 Jan 2014
Review status
This discussion paper has been under review for the journal Geoscientific Model Development (GMD). The revised manuscript was not accepted.
Three-dimensional phase-field study of crack-seal microstructures – insights from innovative post-processing techniques
K. Ankit1,2, M. Selzer1,2, and B. Nestler1,2 1Institute of Materials and Processes, Karlsruhe University of Applied Sciences, Karlsruhe, Germany
2Institute for Applied Materials – Reliability of Components and Systems, Karlsruhe Institute of Technology, Karlsruhe, Germany
Abstract. Numerical simulations of vein evolution contribute to a better understanding of processes involved in their formation and possess the potential to provide invaluable insights into the rock deformation history and fluid flow pathways. The primary aim of the present article is to investigate the influence of a "realistic" boundary condition, i.e. an algorithmically generated "fractal" surface, on the vein evolution in 3-D using a thermodynamically consistent approach, while explaining the benefits of accounting for an extra dimensionality. The 3-D simulation results are supplemented by innovative numerical post-processing and advanced visualization techniques. The new methodologies to measure the tracking efficiency demonstrate the importance of accounting the temporal evolution; no such information is usually accessible in field studies and notoriously difficult to obtain from laboratory experiments as well. The grain growth statistics obtained by numerically post-processing the 3-D computational microstructures explain the pinning mechanism which leads to arrest of grain boundaries/multi-junctions by crack peaks, thereby, enhancing the tracking behavior.

Citation: Ankit, K., Selzer, M., and Nestler, B.: Three-dimensional phase-field study of crack-seal microstructures – insights from innovative post-processing techniques, Geosci. Model Dev. Discuss., 7, 631-658, https://doi.org/10.5194/gmdd-7-631-2014, 2014.
K. Ankit et al.
K. Ankit et al.

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