Deprecated
This module has been deprecated. This functionality is no longer supported in EVS.
modpath
The modpath module uses the cell by cell flow values generated from a MODFLOW project along with head values and other MODFLOW parameters to trace the path of a particle of water as it moves through the ground. The paths are calculated using the same algorithms used by the U.S. Geological Survey MODPATH and the results should be similar.
The module does not handle transient simulations the same way that U.S.G.S. MODPATH does. It treats each time step as a steady state model, and uses the parameters from the .dwr/.dwz file based on the starting time.
A valid modpath field file (.eff/.efz) should contain the following as cell data components: Head, CCF, ELEV_TOP, ELEV_BOT, and POROSITY. The Head component should contain the head value for each cell, ELEV_TOP and ELEV_BOT should contain the elevation of the top and bottom of the cell respectively, and POROSITY should contain the porosity for each cell. All other MODFLOW parameters (drains, wells, recharge, etc.) should be written into a .dwr/.dwz file.
Ports
| Direction | Name | Type | Description |
|---|---|---|---|
| Input | Input Field | Field | The field to use for creating the modpath lines. |
| Input | Input Starting Locations | Field | The field to use for the starting locations of the modpath lines. |
| Input | Input Z Scale | Number | The factor for vertical scaling. |
| Input | Input Start Date | Date | Date used for the start of the MODPATH simulation. |
| Input | Input End Date | Date | Date used for the end of the MODPATH simulation. |
| Output | Output Field | Field | The modpath lines field. |
| Output | Output Z Scale | Number | The factor for vertical scaling. |
| Output | Output Start Date | Date | Date used for the start of the MODPATH simulation. |
| Output | Output End Date | Date | Date used for the end of the MODPATH simulation. |
| Output | Output Object | Renderable | A renderable object to display. |
Properties
| Property | Type | Description |
|---|---|---|
| Z Scale | Double | The Z Scale is required to ensure that the output is matched to scaled input. |
| Execute | Button | The Execute button forces the module to run. |
| DWR File | File | The .dwr/.dwz file containing MODFLOW package data such as drains, wells, recharge, etc. |
| Particle Direction | Choice: Forward, Backwards | Allows the user to specify forward or backward path projection. Paths start from the specified starting points and travel until the selected stopping conditions are satisfied. |
| Time Options | Choice: Run to end, Run to date, Run for duration | Indicates the time-based stopping condition for the particles. Run to end indicates the particle will run until it cannot escape a cell. Run to date allows a particle to travel from a start date to an end date. Run for duration allows the particles to run for a specified number of days. |
| Start Date | Date | The starting time for the particle run. Only enabled when Time Options is set to Run to date. |
| End Date | Date | The ending time for the particle run. Only enabled when Time Options is set to Run to date. |
| Duration | Double | The duration of the simulation in days. Only enabled when Time Options is set to Run for duration. |
| Sink Options | Choice: Pass through cells with weak sinks, Stop in cells with weak sinks, Stop if discharge to sink is greater than specified fraction of inflow to cell | Indicates stopping conditions for particles based on the amount of flow through a cell. |
| Fraction | Double | The fraction of inflow to stop particles in that cell. Only enabled when the corresponding Sink Option is selected. |
Display Options
| Property | Type | Description |
|---|---|---|
| Map Component | Choice: Velocity, Time, Distance, Uncolored | Allows the user to choose which computed data component to use for coloring the lines. |
| Coloring Options | Choice: Magnitude, Log10(Magnitude) | Allows the user to specify Magnitude or Log10(Magnitude) representation of the data for coloring purposes. Working in log space is useful when velocities span several orders of magnitude. |
| Minimum Magnitude | Double | The minimum magnitude of the output data. |
| Maximum Magnitude | Double | The maximum magnitude of the output data. |