GMS:GWF Model

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MODFLOW 6
Models & Tools
GWF Model
Source/Sink Dialog
Zone File
Packages
Flow: GNC, HFB, NPF
Other: CHD, DIS, DRN, EVT
GHB, IC, IMS, LAK,
MAW, MVR, OBS, OC,
RCH,RIV, SFR, STO,
TDIS, UZF, WEL

The Groundwater Flow (GWF) Model Name File dialog

The Groundwater Flow (GWF) Model Name File dialog is accessed by double-clicking on the GWF_Model under a MODFLOW 6 simulation in the Project Explorer. It contains the following sections and options:

  • Sections list – A list of sections that can be turned on or off:
    • Comments – Turn on to make the Comments section visible.
    • Options – Turn on to make the Options section visible.
    • Packages – Turn on to make the Packages section visible.
  • Comments section – Enter general alphanumeric comments. Comments entered here get written at the top of the file, preceded by a '#' symbol.
  • Options section – Temporal options and settings:
    • Output listing file (LIST) – When turned on, indicates which file is in the output listing file.
    • Print all model package input to listing file (PRINT_INPUT) – Turn on to write the list of information to the listing file immediately after it is read.
    • Save model package flows to budget file (SAVE_FLOWS) – Turn on to write flow terms to the file specified with "BUDGET FILEOUT" in Output Control.
    • Activate Newton-Raphson formulation for groundwater flow (NEWTON) – When turned on, this selection allows the utilization of the Newton-Raphson formulation as opposed to the standard used in most previous MODFLOW versions.
    • Under-relax computed heads that are below cell bottom elevations (UNDER_RELAXATION) – When turned on, it helps define the nonlinear under-relaxation schemes used.
  • Packages – Allows the indication of specific file and project details for the model package.
    • ftype – Represents the file type.
    • fname – Represents the file name.
    • pname – Represents the package's name and cannot be altered in this dialog.


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