Electrical Methods Potential File
Potential files specify the electrical potential (real or complex) at each mesh node per ampere of current injected. They are optionally produced in forward run modes as specified in the output options file, and can be written to an exodusII format using bx or xdmf/h5 file using px for visualization. For inverse modes, the potential file is overwritten at each iteration. Potential distributions for time-lapse inverse solutions can be obtained by performing a forward run on multiple conductivity files (see <e4d.inp> forward run format).
See File Syntax Rules for specific details.
| Variable Name | Description |
|---|---|
| n_nodes n_col
(int) (int) |
n_nodes is the number of potential values (must be equal to the number of nodes in the mesh).
n_col is the number of columns in the file (1 for ERT). |
| pot_i
(int) |
 repeat for n_nodes
pot_i is potential value for each node per ampere of current injected. |
ERT Example
4 1 n_nodes ncol 0.01 pot_i_1 potential value for node 1 0.01 pot_i_2 potential value for node 2 0.01 ... 0.01
| Variable Name | Description |
|---|---|
| n_nodes n_col
(int) (int) |
n_nodes is the number of potential values (must be equal to the number of nodes in the mesh).
n_col is the number of columns in the file (2 for SIP). |
| pot_i ipot_i
(int) (int) |
pot_i is the potential value for each node per ampere of current injected. ipot_i is the complex component of the potential value for each node per ampere of current injected. |
SIP Example
4 2 n_nodes ncol 0.01 0.0001 pot_i_1 pot_i_1 potential values for node 1 0.01 0.0001 pot_i_2 pot_i_2 potential values for node 2 0.01 0.0001 ... 0.01 0.0001