GMS:SEAWAT Packages: Difference between revisions

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The VDF package can be used in a SEAWAT simulation to model the affects of concentration on fluid density.  The input values available in the VDF package include:
The VDF package can be used in a SEAWAT simulation to model the affects of concentration on fluid density.  The input values available in the VDF package include:
* IWTABLE - Active variable-density water table corrections.
* IWTABLE – Active variable-density water table corrections.
* MFNADVFD - Internodal density calculation method.
* MFNADVFD – Internodal density calculation method.
* DENSEMIN - Minimum fluid density.
* DENSEMIN – Minimum fluid density.
* DENSEMAX - Maximum fluid density.
* DENSEMAX – Maximum fluid density.
* FIRSTDT - Length of first transport time step.
* FIRSTDT – Length of first transport time step.
* NSWTCPL - Flow/transport coupling.
* NSWTCPL – Flow/transport coupling.
* DNSCRIT - Convergence criteria.
* DNSCRIT – Convergence criteria.
* MT3DRHOFLG - type of fluid density calculation.
* MT3DRHOFLG – type of fluid density calculation.
** When equal to zero, the fluid density for each grid cell can be entered in the table at the bottom of the dialog.  For INDENSE enter -1 to use values from previous stress period, 0 to use DENSREF, and 1 to enter values for DENSE column.
** When equal to zero, the fluid density for each grid cell can be entered in the table at the bottom of the dialog.  For INDENSE enter -1 to use values from previous stress period, 0 to use DENSREF, and 1 to enter values for DENSE column.
** When equal to -1, the fluid density will be calculated using one or more species entered in the table at the bottom of the dialog using species ID, DRHODC, and CRHOREF.  Rows can be entered into the table with the tool bar below the table.
** When equal to -1, the fluid density will be calculated using one or more species entered in the table at the bottom of the dialog using species ID, DRHODC, and CRHOREF.  Rows can be entered into the table with the tool bar below the table.
** When greater than or equal to 1 density is calculated using the corresponding species number.
** When greater than or equal to 1 density is calculated using the corresponding species number.
* DENSREF - Reference fluid density.
* DENSREF – Reference fluid density.
* DRHODC - Density/conc. slope.
* DRHODC – Density/conc. slope.
* DRHODPRHD - Density/pressure slope.
* DRHODPRHD – Density/pressure slope.
* PRHDREF - Reference pressure head.
* PRHDREF – Reference pressure head.


===VSC Package===
===VSC Package===

Revision as of 15:21, 31 October 2013

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 This contains information about functionality available starting at GMS version 8.0.
The content may not apply to other versions.
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SEAWAT
Model Info
Model type 3D Flow and Transport Model
Developer USGS
Documentation SEAWAT Manual
Tutorials SEAWAT Tutorials
v • e

SEAWAT specific packages include the Variable-Density Flow (VDF) and Viscosity (VSC) packages. The package dialogs for both packages are available under the SEAWAT menu. For the package menu items to be available, the packages must first be enabled from the SEAWAT Global Options Dialog. For a detailed description of the VDF and VSC input options, please refer to the SEAWAT manual available in the side bar.

VDF Package

The VDF package can be used in a SEAWAT simulation to model the affects of concentration on fluid density. The input values available in the VDF package include:

  • IWTABLE – Active variable-density water table corrections.
  • MFNADVFD – Internodal density calculation method.
  • DENSEMIN – Minimum fluid density.
  • DENSEMAX – Maximum fluid density.
  • FIRSTDT – Length of first transport time step.
  • NSWTCPL – Flow/transport coupling.
  • DNSCRIT – Convergence criteria.
  • MT3DRHOFLG – type of fluid density calculation.
    • When equal to zero, the fluid density for each grid cell can be entered in the table at the bottom of the dialog. For INDENSE enter -1 to use values from previous stress period, 0 to use DENSREF, and 1 to enter values for DENSE column.
    • When equal to -1, the fluid density will be calculated using one or more species entered in the table at the bottom of the dialog using species ID, DRHODC, and CRHOREF. Rows can be entered into the table with the tool bar below the table.
    • When greater than or equal to 1 density is calculated using the corresponding species number.
  • DENSREF – Reference fluid density.
  • DRHODC – Density/conc. slope.
  • DRHODPRHD – Density/pressure slope.
  • PRHDREF – Reference pressure head.

VSC Package

The VSC package can be used in a SEAWAT simulation to model the affects of concentration on fluid viscosity. Using the Viscosity Package requires using the VDF package and the LPF package in MODFLOW. The input values available in the VSC package include:

  • VISCMIN - Minimum viscosity.
  • VISCMAX - Maximum viscosity.
  • MT3DMUFLG - Type of viscosity calculation.
    • When equal to zero, the fluid viscosity for each grid cell can be entered in the table at the bottom of the dialog. For INVISC enter -1 to use values from previous stress period, 0 to use VISCREF, and 1 to enter values for VISC column.
    • When equal to -1, the fluid density will be calculated using one or more species entered in the table at the bottom of the dialog using species ID, DMUDC, and CMUREF. Rows can be entered into the table with the tools bar below the table.
    • When greater than or equal to 1 viscosity is calculated using the corresponding species number.
  • VISCREF - Reference viscosity.
  • DMUDC - Viscosity/concentration slope.
  • CMUREF - Reference concentration.
  • MTMUTEMPSEC - Temp. species ID.
  • AMUCOEFF - coefficients for equation 18-20 in SEAWAT 4 documentation.
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