2D data modelling by electrical resistivity tomography for complex subsurface geology. Geophysical Journal International, 2003,154(3):947-956.Ĭardarelli E, Fischanger F. A 3-D finite-element algorithm for DC resistivity modelling using the shifted incomplete Cholesky conjugate gradient method. Resistivity modeling for arbitrarily shaped three-dimensional structured. Modeling of electric and electromagnetic data. Electromagnetic and electrical modeling by the finite element method. International Journal for Numerical Methods in Engineering, 2009,79(11):1309-1331.Ĭoggon J H.
Gmsh reference article generator#
Gmsh: A 3-D finite element mesh generator with built-in pre- and post-processing facilities. Forward modeling of well-ground direct current resistivity method for undulating terrain based on Gmsh. Gmsh well-ground observation devices undulating terrain finite element method The results achieved are practically significant and they also prove that the Gmsh software has great application value in the forward modeling and meshing based on the finite element method. The effects of the valley terrain on the anomalous response below using different observation devices were also studied. The analytical results show that good effects can be obtained by using irregular grids to fit the undulating terrain and using the well-ground joint observation method to explore the geological conditions under the undulating terrain. Then partial grid data generated by Gmsh were applied to a 2.5D finite element forward modeling program, and the forward calculation results were analyzed using the well-ground joint observation method. To this end, the Gmsh software-a 3D finite element grid generator-was used to model the anomalous bodies under undulating terrain and conduct relevant irregular grid division. This paper focuses on the forward modeling of the direct current resistivity method.
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