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http://dx.doi.org/10.7474/TUS.2020.30.6.509

Construction of Open-source Program Platform for Efficient Numerical Analysis and Its Case Study  

Park, Chan-Hee (Geologic Environment Division, Korea Institute of Geosciences and Mineral Resources)
Kim, Taehyun (Radwaste Disposal Research Division, Korea Atomic Energy Research Institute)
Park, Eui-Seob (Geologic Environment Division, Korea Institute of Geosciences and Mineral Resources)
Jung, Yong-Bok (Geologic Environment Division, Korea Institute of Geosciences and Mineral Resources)
Bang, Eun-Seok (Mineral Resources Division, Korea Institute of Geosciences and Mineral Resources)
Publication Information
Tunnel and Underground Space / v.30, no.6, 2020 , pp. 509-518 More about this Journal
Abstract
This study constructed a new simulation platform, including mesh generation process, numerical simulation, and post-processing for results analysis based on exploration data to perform real-scale numerical analysis considering the actual geological structure efficiently. To build the simulation platform, we applied for open-source programs. The source code is open to be available for code modification according to the researcher's needs and compatibility with various numerical simulation programs. First, a three-dimensional model(3D) is acquired based on the exploration data obtained using a drone. Then, the domain's mesh density was adjusted to an interpretable level using Blender, the free and open-source 3D creation suite. The next step is to create a 3D numerical model by creating a tetrahedral volume mesh inside the domain using Gmsh, a finite element mesh generation program. To use the mesh information obtained through Gmsh in a numerical simulation program, a converting process to conform to the program's mesh creation protocol is required. We applied a Python code for the procedure. After we completed the stability analysis, we have created various visualization of the study using ParaView, another open-source visualization and data analysis program. We successfully performed a preliminary stability analysis on the full-scale Dokdo model based on drone-acquired data to confirm the usefulness of the proposed platform. The proposed simulation platform in this study can be of various analysis processes in future research.
Keywords
Simulation platform; Open-source; Numerical simulation; Dokdo;
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Times Cited By KSCI : 13  (Citation Analysis)
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1 Geuzaine, C. and J.F. Remacle, 2009, Gmsh: A 3-d finite element mesh generator with built-in pre-and post-processing facilities, International Journal for Numerical Methods in Engineering, Vol. 79, pp. 1309-1331.   DOI
2 Helbig, C., Bilke, L., Bauer, H.S., Bottinger, M. and O. Kolditz, 2015. Meva-an interactive visualization application for validation of multifacetedmeteorological data with multiple 3d devices, PloS one, Vol. 10, e0123811.   DOI
3 Kwon, S., Lee, C. and S.H. Park, 2015, Thm coupling analysis for decovalex-2015 task b2, Tunnel and Underground Space, Vol. 25, pp. 556-567.   DOI
4 Lee, C., Choi, H.J. and G.Y. Kim, 2020, Numerical modeling of coupled thermo-hydro-mechanical behavior of mx80 bentonite pellets, Tunnel and Underground Space, Vol. 30, pp. 446-461.   DOI
5 Lee, J., Lee, C. and G.Y. Kim, 2019, Numerical modelling of one dimensional gas injection experiment using mechanical damage model: Decovalex-2019 task a stage 1a, Tunnel and Underground Space, Vol. 29, pp. 262-279.
6 Park, C.H., Kim, T., Park, E.S., Jung, Y.B. and E.S. Bang, 2019a, Development and verification of ogsflac simulator for hydromechanical coupled analysis: Single-phase fluid flow analysis, Tunnel and Underground Space, Vol. 29, pp. 468-479.   DOI
7 Park, J.W., Guglielmi, Y., Graupner, B., Rutqvist, J. and E.S. Park, 2019b, Numerical modelling of fault reactivation experiment at mont terri under-ground research laboratory in switzerland: Decovalex-2019 task b (step 2), Tunnel and Underground Space, Vol. 29, pp. 197-213.   DOI
8 Park, J.W., Kim, T., Park, E.S. and C. Lee, 2018a, Coupled hydro-mechanical modelling of fault reactivation induced by water injection: DECOVALEX-2019 task b (benchmark model test), Tunnel and Underground Space, Vol. 28, pp. 670-691.   DOI
9 Park, J.W., Park, E.S., Kim, T., Lee, C. and J. Lee, 2018b, Hydro-mechanical modelling of fault slip induced by water injection: Decovalex-2019 taskb (step 1), Tunnel and Underground Space, Vol. 28, pp. 400-425.   DOI