GMS:UPW Package: Difference between revisions

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{{MODFLOW Links}}
{{MODFLOW Links}}
The Upstream Weighting package (UPW) is the flow package used with MODFLOW-NWT. The UPW package is only used with the [[NWT Package|NWT Solver Package]].
MODFLOW-NWT contains the UPW flow package.  The UPW flow package is based on the [[GMS:LPF Package|LPF package]] but differs in that the rewetting and vertical conductance correction options are not available.  It also differs from the [[GMS:LPF Package|LPF package]] in that it smoothes the horizontal conductance and storage change functions to have a continuous derivatives so they can be solved by the Newton method. Using the UPW package requires using the [[GMS:NWT Package|NWT solver]].


For more information on the UPW package see the USGS documentation here. [http://water.usgs.gov/nrp/gwsoftware/modflow2000/MFDOC/upw_upstream_weighting_package.htm]
For more information on the UPW package see the USGS documentation here. [http://water.usgs.gov/nrp/gwsoftware/modflow2000/MFDOC/upw_upstream_weighting_package.htm]

Revision as of 23:04, 26 October 2011

MODFLOW
Pre-processing
MODFLOW Commands
Building a MODFLOW Model
Map to MODFLOW
Calibration
Packages Supported in GMS
Saving a MODFLOW Simulation
Importing MODFLOW Files
Unsupported MODFLOW Features
Run MODFLOW
Post-processing
MODFLOW Display Options
MODFLOW Post-Processing Viewing Options
Reading a MODFLOW Simulation
Tutorials
Packages
Flow: BCF6, HUF, LPF, UPW
Solvers:

DE4, GMG, NWT, PCG,

PCGN, LMG, SIP, SOR,

SMS
Other:

BAS6, BFH, CHD1, CLN,

DRN1, DRT1, EVT1, ETS1,

GAGE, GHB1, GNC, HFB1,

HUF, LAK3, MNW1, MNW2,

OUT1, RCH1, RIV1, SFR2,

STR1, SUB1, SWI2, WEL1,

UZF1

MODFLOW-NWT contains the UPW flow package. The UPW flow package is based on the LPF package but differs in that the rewetting and vertical conductance correction options are not available. It also differs from the LPF package in that it smoothes the horizontal conductance and storage change functions to have a continuous derivatives so they can be solved by the Newton method. Using the UPW package requires using the NWT solver.

For more information on the UPW package see the USGS documentation here. [1]