Summary The Galloway research team has developed and documented three computer models (AIR2D, AIR3D, and R-UNSAT) for simulating flow and transport in the unsaturated zone that are available to the public. These modelss were funded by the Toxics Substances Hydrology Program. The computer codes are written in Fortran F77 and run on a variety of computer systems, including ... mainframe and personal computers, with only minor adaptations. The programs are written in a modular structure which facilitates modifications to the source code. Whenever these modifications are made, the program must be recompiled with a Fortran, F77, compiler to incorporate the changes in the executable versions of the program code. The commands needed to link and compile the program depend on the type of compiler being used.
AIR2D is a flow model for simulating the movement of air to or from a single borehole screened in the unsaturated zone and can be applied to predict a steady-state flow field associated with vapor extraction. AIR2D can be used in a calibrative mode to obtain estimates of unsaturated-zone air-phase permeability from pneumatic pump test data. In a predictive mode, AIR2D can be used to simulate the performance of a single venting well by generating pressure and flow values for a specified geologic setting, air permeability distribution, and well discharge or injection rate.
Accompanying report and documentation: AIR2D - A computer code to simulate two-dimensional, radially symmetric airflow in the unsaturated zone, U.S. Geological Survey Open-File Report 97-588, 106 p. by Craig J. Joss and Arthur L. Baehr
Related URL
Link:
VIEW RELATED INFORMATION
Description:
AIR2D read.me file that describes the installation and execution
procedures.
Link:
GET SERVICE
>
GET SOFTWARE PACKAGE
Description:
Zipped source code is available here.
Link:
GET RELATED SERVICE METADATA (SERF)
Description:
R-UNSAT is a computer model for the simulation of reactive,
multispecies transport in a heterogeneous, variably-saturated porous
media.
Link:
GET RELATED SERVICE METADATA (SERF)
Description:
AIR3D is an adaptation of the ground-water flow code MODFLOW to
simulate three dimensional air-flow in a heterogeneous, anisotropic
unsaturated zone where air flow is induced through dry wells or
trenches, as in vapor- extraction remediation.
Service Citation
Originators:
U.S. Geological Survey
Title:
AIR2D Mathematical Model for Simulating Air Movement
Release_Date:
1998-04-01
Provider:
U.S. Geological Survey
URL:
http://nj.usgs.gov/toxics/models.html#AIR2D
Name:
RICHARD
H.
KROPP
Phone:
(609) 771-3901
Fax:
(609) 771-3915
Email:
rkropp at usgs.gov
Contact Address:
New Jersey District Chief
U.S. Geological Survey
810 Bear Tavern Road, Suite 206 City:
West Trenton
Province or State:
NJ
Postal Code:
08628
Country:
USA
ARTHUR
L.
BAEHR Role:
TECHNICAL CONTACT
Phone:
609-771-3978
Email:
abaehr at usgs.gov
Contact Address:
U.S. Geological Survey
810 Bear Tavern Road City:
West Trenton
Province or State:
New Jersey
Postal Code:
08628
Country:
United States
TYLER
B.
STEVENS Role:
SERF AUTHOR
Phone:
(301) 614-6898
Fax:
301-614-5268
Email:
Tyler.B.Stevens at nasa.gov
Contact Address:
NASA Goddard Space Flight Center
Global Change Master Directory City:
Greenbelt
Province or State:
MD
Postal Code:
20771
Country:
USA
Publications/References AIR2D - A computer code to simulate two-dimensional, radially symmetric airflow in the unsaturated zone, U.S. Geological Survey Open-File Report 97-588, 106 p. by Craig J. Joss and Arthur L. Baehr
Creation and Review Dates
SERF Creation Date:
2000-08-29
SERF Last Revision Date:
2006-03-23
Links
