STOMP User Guide
STOMP User Guide
Output Control Card Options
Two types of output can be requested in the output control card: 1) reference node output and 2) plot file output.
Reference Node Output
Reference node output is generated by selecting reference nodes, or grid cells, and output variables. The user may request any number of reference nodes, but reference node output was primarily designed for tracking the time evolution of selected variables at key points of interest. Reference nodes are defined with three indices, which indicate the x-, y-, and z-direction coordinates of the grid cell. Grid cell numbering in the simulator increments in the order i, j, and k, where the indices refer to the x-, y-, and z-directions, respectively, for Cartesian coordinate systems, and r-, θ-, and z-directions, respectively, for cylindrical coordinate systems. Reference Node Screen Output Frequency and Reference Node Output File Frequency are parameters that indicate how often, with respect to time step reference node, output will be written to STDIO and the output file, respectively. A frequency value of 1 indicates reference node output occurs every time step, whereas a frequency value of 10 indicates that reference node output occurs every 10 time steps. The user has control over the output time and length units and the number of significant digits reported to the various output media. Unless declared through the Output Time Units or Output Length Units input items, values for time and lengths recorded to the output media will be expressed in units of seconds and meters, respectively. These inputs allow the user to customize time- and length-scale units to those most appropriate to the solved problem. The Screen Significant Digits, Output File Significant Digits, and Plot File Significant Digits input items allow the user to customize the number of significant digits that appear in field and flux variable results written to the STDIO, output file, and plot.n file, respectively. The default value for the number of significant digits is 5, and the minimum number of significant digits is 4. The same list of variables for each operational mode is available for output to the plot.n files. Output units for all variables with units can be specified immediately following the variable name. Variables without units require a null entry for the variable units. Null entries for variables with units yield default output units, which are expressed in SI units. Variables that can be specified for reference node output are shown in the table below.
Reference Node Variables
| Reference Node Variable Name | SI Units |
| apparent aqueous saturation | - |
| aqueous CO2 concentration | kg/m3 |
| aqueous CO2 mass fraction | - |
| aqueous CO2 mole fraction | - |
| aqueous courant | - |
| aqueous density | kg/m3 |
| aqueous enthalpy | J/kg |
| aqueous fracture | - |
| aqueous gauge pressure | Pa |
| aqueous hydraulic head | m |
| aqueous internal energy | J |
| aqueous matrix | - |
| aqueous moisture content | - |
| aqueous pressure | Pa |
| aqueous relative permeability | - |
| aqueous salt mole fraction | - |
| aqueous saturation | - |
| aqueous thermal conductivity | W/m K |
| aqueous viscosity | Pa s |
| aqueous water concentration | kg/m3 |
| aqueous water mass fraction | - |
| CO2 aqueous diffusion coefficient | - |
| CO2 mass source integral | kg |
| component mass source rate | kg/s |
| coupled-well CO2 mass integral | kg |
| coupled-well CO2 mass nodal rate | kg/s |
| coupled-well CO2 mass rate | kg/s |
| coupled-well water mass integral | kg |
| coupled-well water mass nodal rate | kg/s |
| coupled-well water mass rate | kg/s |
| diffusive porosity | - |
| effective trapped gas | - |
| gas CO2 concentration | kg/m3 |
| gas CO2 mass fraction | - |
| gas CO2 mole fraction | - |
| gas courant | - |
| gas density | kg/m3 |
| gas enthalpy | J/kg |
| gas fracture | - |
| gas gauge pressure | Pa |
| gas hydraulic head | m |
| gas internal energy | J |
| gas matrix | - |
| gas pressure | Pa |
| gas relative permeability | |
| gas saturation | - |
| gas thermal conductivity | W/m K |
| gas viscosity | Pa s |
| gas water concentration | kg/m3 |
| gas water mass fraction | - |
| gas water mole fraction | - |
| gas-aqueous scaling factor | - |
| integrated aqueous CO2 mass | kg |
| integrated aqueous water mass | kg |
| integrated CO2 mass | kg |
| integrated CO2 mass source | kg |
| integrated gas component mass | kg |
| integrated gas water mass | kg |
| integrated precipitated salt mass | kg |
| integrated trapped gas CO2 | kg |
| integrated water mass | kg |
| integrated water mass source | kg |
| mean effective stress | Pa |
| minimum effect aqueous saturation | kg |
| node number | - |
| osmotic efficiency factor | - |
| osmotic pressure | Pa |
| phase condition | - |
| precipitated salt saturation | - |
| rock/soil type | - |
| salt aqueous concentration | kg/m3 |
| salt aqueous mass fraction | - |
| salt mass source integral | kg |
| salt mass source rate | kg/s |
| salt volumetric concentration | kg/m3 |
| saturation function index | - |
| similitude parameter | m2/s |
| source-well pressure | Pa |
| temperature | C |
| total CO2 mass | kg |
| total salt mass | kg |
| total water mass | kg |
| trapped gas saturation | - |
| vertical-equilibrium aqueous pressure | Pa |
| vertical-equilibrium aqueous relative permeability | - |
| vertical-equilibrium aqueous saturation | - |
| vertical-equilibrium gas pressure | Pa |
| vertical-equilibrium gas relative permeability | - |
| vertical-equilibrium gas saturation | - |
| vertical-equilibrium gas-aqueous interface elevation | m |
| vertical-equilibrium trapped gas saturation | - |
| vertically-integrated CO2 mass | kg |
| vertically-integrated CO2 mass area | kg/m2 s |
| vertically-integrated gas CO2 mass | kg |
| vertically-integrated gas CO2 mass area | kg/m2 s |
| vertically-integrated aqueous CO2 mass | kg |
| vertically-integrated aqueous CO2 mass area | kg/m2 s |
| water gas diffusion coefficient | - |
| water mass source integral | kg |
| water mass source rate | kg/s |
| water vapor partial pressure | Pa |
| webb matching point head | m |
| webb matching point saturation | - |
| well pressure | Pa |
| well-node pressure | - |
| x aqueous volumetric flux | m/s |
| x gas volumetric flux | m/s |
| x node position | |
| x salt flux | kg/m2 s |
| x thermal conductivity | W/m K |
| x-direction displacement | m |
| x-direction intrinsic permeability | m2 |
| x-direction normal strain | - |
| xnc aqueous volumetric flux | m/s |
| xnc gas volumetric flux | m/s |
| xnc heat flux | W/m2 |
| xnc salt flux | kg/m2 s |
| y aqueous volumetric flux | m/s |
| y gas volumetric flux | m/s |
| y node position | |
| y salt flux | kg/m2 s |
| y thermal conductivity | W/m K |
| y-direction displacement | m |
| y-direction intrinsic permeability | m2 |
| y-direction normal strain | - |
| ync aqueous volumetric flux | m/s |
| ync gas volumetric flux | m/s |
| ync heat flux | W/m2 |
| ync salt flux | kg/m2 s |
| z aqueous volumetric flux | m/s |
| z gas volumetric flux | m/s |
| z node position | |
| z salt flux | kg/m2 s |
| z thermal conductivity | W/m K |
| z-direction displacement | m |
| z-direction intrinsic permeability | m^2 |
| z-direction normal strain | - |
| znc aqueous volumetric flux | m/s |
| znc gas volumetric flux | m/s |
| znc heat flux | W/m2 |
| znc salt flux | kg/m2 s |
Plot File Output
Plot files are written at the conclusion of an execution, by default, and at each requested Plot File Output Time. Plot files contain geometry data and selected field and flux variable results for every node in the computational domain. These files represent a “snapshot” of the simulation at a certain point in time. Requests for Plot File Output Times can be specified with user defined units. A restart.n file is generated with every plot.n file. Both restart.n and plot.n files are suffixed with a file name extension of a dot followed by an integer (e.g., plot.567, restart.0032). The extension integer corresponds with the time step for which the file was written. Both plot.n and restart.n files are written at the conclusion of a time step. Field and flux variables recorded to plot.n files are selected from the list shown below. Output units for all variables with units can be specified in the input item immediately following the variable name. Variables without units require a null entry for the variable units. Null entries for variables with units yield default output units, which are expressed in SI units.
Plot File Variables
| Reference Node Variable Name | SI Units |
| 3d grid | - |
| apparent aqueous saturation | - |
| aqueous CO2 concentration | kg/m3 |
| aqueous CO2 mass fraction | - |
| aqueous CO2 mole fraction | - |
| aqueous courant | - |
| aqueous density | kg/m3 |
| aqueous fracture | - |
| aqueous gauge pressure | Pa |
| aqueous hydraulic head | m |
| aqueous internal energy | J |
| aqueous matrix | - |
| aqueous moisture content | - |
| aqueous pressure | Pa |
| aqueous relative permeability | - |
| aqueous salt mole fraction | - |
| aqueous saturation | - |
| aqueous thermal conductivity | W/m K |
| aqueous viscosity | Pa s |
| aqueous water concentration | kg/m3 |
| aqueous water mass fraction | - |
| CO2 aqueous diffusion coefficient | - |
| CO2 mass source integral | kg |
| component mass source rate | kg/s |
| diffusive porosity | - |
| effective trapped gas | - |
| final restart | - |
| gas CO2 concentration | kg/m3 |
| gas CO2 mass fraction | - |
| gas CO2 mole fraction | - |
| gas courant | - |
| gas density | kg/m3 |
| gas enthalpy | J/kg |
| gas fracture | - |
| gas gauge pressure | Pa |
| gas hydraulic head | m |
| gas internal energy | J |
| gas matrix | - |
| gas pressure | Pa |
| gas relative permeability | |
| gas saturation | - |
| gas thermal conductivity | W/m K |
| gas viscosity | Pa s |
| gas water concentration | kg/m3 |
| gas water mass fraction | - |
| gas water mole fraction | - |
| gas-aqueous scaling factor | - |
| mean effective stress | Pa |
| minimum effect aqueous saturation | |
| no restart | - |
| node number | - |
| osmotic efficiency factor | - |
| osmotic pressure | Pa |
| phase condition | - |
| precipitated salt saturation | - |
| rock/soil type | - |
| salt aqueous concentration | kg/m3 |
| salt aqueous mass fraction | - |
| salt mass source integral | kg |
| salt mass source rate | kg/s |
| salt volumetric concentration | kg/m3 |
| saturation function index | - |
| similitude parameter | m2/s |
| temperature | C |
| total CO2 mass | kg |
| total salt mass | kg |
| total water mass | kg |
| trapped gas saturation | - |
| vertical-equilibrium aqueous pressure | Pa |
| vertical-equilibrium aqueous relative permeability | - |
| vertical-equilibrium aqueous saturation | - |
| vertical-equilibrium gas pressure | Pa |
| vertical-equilibrium gas relative permeability | - |
| vertical-equilibrium gas saturation | - |
| vertical-equilibrium gas-aqueous interface elevation | m |
| vertical-equilibrium trapped gas saturation | - |
| vertically-integrated aqueous CO2 mass | kg |
| vertically-integrated aqueous CO2 mass area | kg/m2 s |
| vertically-integrated CO2 mass | kg |
| vertically-integrated CO2 mass area | kg/m2 s |
| vertically-integrated gas CO2 mass | kg |
| vertically-integrated gas CO2 mass area | kg/m2 s |
| water gas diffusion coefficient | - |
| water mass source integral | kg |
| water mass source rate | kg/s |
| water vapor partial pressure | Pa |
| webb matching point head | m |
| webb matching point saturation | - |
| x aqueous volumetric flux | m/s |
| x gas volumetric flux | m/s |
| x node centroid | - |
| x salt flux | kg/m2 s |
| x thermal conductivity | W/m K |
| x-direction displacement | m |
| x-direction index of node | - |
| x-direction intrinsic permeability | m^2 |
| x-direction normal strain | - |
| xnc aqueous volumetric flux | m/s |
| xnc gas volumetric flux | m/s |
| xnc heat flux | W/m2 |
| xnc salt flux | kg/m2 s |
| xnc surface area | m2 |
| y aqueous volumetric flux | m/s |
| y gas volumetric flux | m/s |
| y node centroid | - |
| y salt flux | kg/m2 s |
| y thermal conductivity | W/m K |
| y-direction displacement | m |
| y-direction index of node | - |
| y-direction intrinsic permeability | m^2 |
| y-direction normal strain | - |
| ync aqueous volumetric flux | m/s |
| ync gas volumetric flux | m/s |
| ync heat flux | W/m2 |
| ync salt flux | kg/m2 s |
| ync surface area | m2 |
| z aqueous volumetric flux | m/s |
| z gas volumetric flux | m/s |
| z node centroid | - |
| z salt flux | kg/m2 s |
| z thermal conductivity | W/m K |
| z-direction displacement | m |
| z-direction index of node | - |
| z-direction intrinsic permeability | m2 |
| z-direction normal strain | - |
| znc aqueous volumetric flux | m/s |
| znc gas volumetric flux | m/s |