GMS:MF6 MST Package: Difference between revisions

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** ''BULK_DENSITY'' – The ''BULK_DENSITY'' tab represents the bulk densities of the aquifer in mass per length cubed. If ''SORPTION'' hasn't been specified, then BULK_DENSITY will not be required.
** ''BULK_DENSITY'' – The ''BULK_DENSITY'' tab represents the bulk densities of the aquifer in mass per length cubed. If ''SORPTION'' hasn't been specified, then BULK_DENSITY will not be required.
** ''DISTCOEF'' – The ''DISTCOEF'' tab represents the distribution coefficients for the equilibrium-controlled linear sorption isotherm in dimensions of length cubed per mass. If ''SORPTION'' hasn't been specified, then ''DISTCOEF'' will not be required.
** ''DISTCOEF'' – The ''DISTCOEF'' tab represents the distribution coefficients for the equilibrium-controlled linear sorption isotherm in dimensions of length cubed per mass. If ''SORPTION'' hasn't been specified, then ''DISTCOEF'' will not be required.
** ''SP2'' – ???
** ''SP2'' – The exponent for the Freundlich isotherm and the sorption capacity for the Langmuir isotherm.




Revision as of 21:34, 7 October 2021

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 This contains information about functionality available starting at GMS version 10.6.
The content may not apply to other versions.
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 MODFLOW 6 is currently in Beta release for GMS
Some features and capabilities of MODFLOW 6 are still in development for GMS.
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MODFLOW 6
Models & Tools
GWF Model
GWT Model
Cell Properties Dialog
Zone File
Packages
Flow: GNC, HFB, NPF
GWF: BUY, CHD, CSUB,
DRN, EVT, GHB,
LAK, MAW, MVR,
OBS, RCH,RIV,
SFR, STO, UZF,
WEL
GWT: ADV, CNC, DSP
FMI, IC, IST, LKT,
MDT, MST, MVT,
MWT, OBS, SFT,
SRC,SSM, UZT
Other DIS, DISU, DISV,
IMS, OC, TDIS,
PEST
v • e

The Mobile Storage and Transfer (MST) Package dialog

The Mobile Storage and Transfer (MST) Package dialog is accessed by double-clicking on the MST package 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.
    • GRIDDATA – Turn on to make the GRIDDATA 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 – Options and settings:
    • SAVE_FLOWS – This indicates that MST flow terms will be saved to a budget file (specified in Output Control with "BUDGET FILEOUT").
    • FIRST_ORDER_DECAY – This indicates that first-order decay will occur. This requires that DECAY and DECAY_SORBED (if SORPTION has been specified) are specified in the GRIDDATA section.
    • ZERO_ORDER_DECAY – This indicates that zero-order decay will occur. This requires that DECAY and DECAY_SORBED (if SORPTION has been specified) are specified in the GRIDDATA section.
    • SORPTION – This indicates that sorption will be activated. This requires that BULK_DENSITY and DISTCOEF are specified in the GRIDDATA section. This will also activate a drop-down where the type of sorption can be chosen, from the following options:
      • "LINEAR"
      • "FREUNDLICH"
      • "LANGMUIR"
  • GRIDDATA section – This deals with the GRIDDATA block.
    • Define – This allows data within the GRIDDATA section to be defined. When this is inactive, all of the options within a given tab are grayed out. This option is specifically available in all of the tabs except for the POROSITY tab. In the POROSITY tab, it is not visible but automatically activated so all the options are activated.
    • Dataset to Array... – This button brings up a Select Dataset dialog, where a single dataset can be selected for use in the GRIDDATA section. This will populate its spreadsheet. This option is grayed out if Define is not turned on.
    • Layered – When this is active, a numeric updown for the layers will become available.
    • Drop-down and Constant/Factor – The drop-down in the GRIDDATA section has two options. The option selected will change the nature of the textbox to its right.
      • "CONSTANT" – This will change the textbox to the right to be representative of "Constant". If this is selected, the spreadsheet in the GRIDDATA section will be grayed out.
      • "ARRAY" – This will change the textbox to the right to be representative of "Factor". If this is selected, the spreadsheet in the GRIDDATA section will not be grayed out, and its cells will be editable.
    • POROSITY – The POROSITY tab represents the aquifer porosities.
    • DECAY – The DECAY tab represents the rate coefficients for first/zero-order decay for the aqueous phase of the mobile domain. Negative values indicate solute production. For first-order decay, the dimensions of DECAY is one over time. For zero-order decay, the dimensions of DECAY is mass per length cubed per time. If neither FIRST_ORDER_DECAY nor ZERO_ORDER_DECAY are specified, then DECAY will have no impact on simulation results.
    • DECAY_SORBED – The DECAY_SORBED tab represents the rate coefficients for first/zero-order decay for the sorbed phase of the mobile domain. Negative values indicate solute production. For first-order decay, the dimension of DECAY_SORBED is one over time. For zero-order decay, the dimensions of DECAY_SORBED is mass of solute per mass of aquifer per time. If DECAY_SORBED is not specified, but both DECAY and SORPTION are active, the sorbed decay rate will be set to the same value as the aqueous decay rate. If SORPTION hasn't been specified and neither FIRST_ORDER_DECAY nor ZERO_ORDER_DECAY have been specified, then DECAY_SORBED will have no impact on simulation results.
    • BULK_DENSITY – The BULK_DENSITY tab represents the bulk densities of the aquifer in mass per length cubed. If SORPTION hasn't been specified, then BULK_DENSITY will not be required.
    • DISTCOEF – The DISTCOEF tab represents the distribution coefficients for the equilibrium-controlled linear sorption isotherm in dimensions of length cubed per mass. If SORPTION hasn't been specified, then DISTCOEF will not be required.
    • SP2 – The exponent for the Freundlich isotherm and the sorption capacity for the Langmuir isotherm.


Related Topics


v • e
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