User's guide of Proceessing Modflow 5.0

Processing Modflow 307
Appendix 3: Input Data Files of the supported Models
The following tables gives the name of input data files for each packages of the supported models. The input files
are saved in the same folder as the model data. Refer to the documentation of corresponding models for the format
of the input files. You can find the documentions in the folder \document\ of the companion CD-ROM.
Name File
MODFLOW-88, MODFLOW-96 and MOC3D require a so-called Name File. The name file is also required if you
want to import an existing model into PMWIN. The name file contains a list of file types, unit numbers and the
associated file name.
File Format
1. Data: FTYPE NUNIT FNAME
Explanation of Fields Used in Input Instructions
ALL DATA IN THE SAME RECORD ARE SEPARATED BY A COMMA OR BLANK.
FTYPE iis the file type, which must be one of the following character values. FTYPE may be entered in
uppercase or lowercase.
LIST for the simulation listing file
BAS for the Basic Package
OC for the Output Control Option
BCF for the Block-Centered Flow Package
RCH for the Recharge Package
RIV for the River Package
WEL for the Well Package
DRN for the Drain Package
GHB for the General-Head Boundary Package
EVT for the Evapotranspiration Package
SIP for the Strongly Implicit Procedure Package
SOR for the Slice-Successive Over-Relaxation Package
DATA(BINARY) for binary (unformatted) files such as those used to save cell-by-cell budget data
and binary (unformatted) head and drawdown data.
DATA for formatted (text) files such as those used to save formatted head and rawdown and
for input of array data from files that are separate from the primary package input files.
NUNIT is the Fortran unit to be used when reading from or writing to the file. Any legal unit number on the
computer being used can be specified except units 97-99. Unit 99 is used for the name file and
for reading arrays using the OPEN/CLOSE option (see Input Instructions for Array Reading Utility
Modules section). Units 97 and 98 are used for batch files as explained below. Each file must have
a unique unit number.
FNAME is the name of the file, which is a character value.
Notes:
1. If you want to import a model into PMWIN, all files listed in the Name File must be located in the same
folder as the Name File itself.
2. Although MODFLOW allows array values of some packages (BAS, BCF, EVT and RCH) be saved in extra
data files by using DATA(BINARY) or DATA, these features are not supported by the converter of
PMWIN. You must put the external array values into the package files before converting the model.
3. An imported model will have the same model name as the Name File.
Example of a Name File
This example file is generated by PMWIN for the model located in \pm5\examples\basic\basic1\. The file name
is basic1.nam.
LIST 6 output.dat
BAS 1 bas.dat
BCF 11 bcf.dat
OC 22 oc.dat
WEL 12 wel.dat
RCH 18 rch.dat
Appendix 3: Input Data Files of the supported Models