| Main Title |
DEGADIS (DEnse GAs DISpersion) Model, Version 2.1 (for Microcomputers). |
| Author |
Guinnup, D. ;
|
| CORP Author |
Environmental Protection Agency, Research Triangle Park, NC. Office of Air Quality Planning and Standards. |
| Publisher |
1989 |
| Year Published |
1989 |
| Report Number |
EPA/SW/DK-90/034; |
| Stock Number |
PB90-502253 |
| Additional Subjects |
Model-simulation ;
Air pollution ;
Dispersions ;
Plumes ;
Gases ;
Mathematical models ;
Dilution ;
Trajectories ;
Diskettes ;
Chemical effluents ;
L=Fortran ;
H=DEC VAX
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB90-502253 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
1 diskette |
| Abstract |
An improved Jet-Plume model has been interfaced with DEGADIS to provide for prediction of the trajectory and dilution of elevated dense gas jets to ground contact. DEGADIS predicts the ensuing ground-level plume dispersion. The Jet-Plume model provides for: automatic adjustment of integration step-size (using the Runge-Kutta-Gill method as in DEGADIS): elliptical plume shape (cross-section), with the Pasquill-Gifford plume dispersion coefficient representation of atmospheric turbulent entrainment; user specification of averaging time; ground reflection when the plume (lower) boundary reaches ground level; and application to scenarios where the plume remains aloft. The model should be uploaded via modem from a PC terminal to host a VAX computer, and several files must then be renamed prior to compilation and execution. The program is written in FORTRAN for compilation and execution on a DEC VAX Computer. |
| Supplementary Notes |
Supersedes PB88-202379. Computer: DEC VAX. Language: FORTRAN. The program is written in FORTRAN for compilation and execution on a DEC VAX computer. Implementation on any other system may be attempted at the risk of the user. To facilitate dissemination of the model, it is being provided on diskette. |
| Availability Notes |
The software is contained on one 360K, 5 1/4-inch diskette, double density. File format: Executable code only. The diskettes are in the ASCII format. Price includes documentation, PB90-213893. |
| NTIS Title Notes |
Model-Simulation. |
| Category Codes |
68A#; 91A; 43F; 62 |
| NTIS Prices |
CP D01 |
| Primary Description |
200/04 |
| Document Type |
NT |
| Cataloging Source |
NTIS/MT |
| Control Number |
022225307 |
| Origin |
NTIS |
| Type |
CAT |
