| Main Title |
Urban Aerosol Modeling. |
| Author |
Brock, J. R. ;
|
| CORP Author |
Texas Univ. at Austin. Coll. of Engineering.;Environmental Sciences Research Lab., Research Triangle Park, NC. |
| Year Published |
1984 |
| Report Number |
EPA-R-808601; EPA/600/3-84/088; |
| Stock Number |
PB84-233469 |
| Additional Subjects |
Air pollution ;
Aerosols ;
Mathematical models ;
Urban areas ;
Transport properties ;
Coagulation ;
Evaporation ;
Condensation ;
Dynamics ;
Atmospheric dispersion
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB84-233469 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
42p |
| Abstract |
Accurate numerical schemes have been developed for simulation of the condensation/evaporation processes with vapor conservation for a single component aerosol. These have been incorporated in modules which allow simulation of aerosol dynamics in models for dispersion and transport. The coagulation process can be simulated by these methods with high accuracy. In coagulation simulation errors can be reduced to any desired level by choices of width and size interval. It has been shown that the method of fractional steps give excellent results with large savings in computer time. The condensation/evaporation process with vapor conservation has been simulated numerically through the use of a new Eulerian-Lagrangian numerical technique. With this technique numerical dispersion and diffusion can be reduced to any desired level. |
| PUB Date Free Form |
Aug 84 |
| Category Codes |
13B; 68A; 91A |
| NTIS Prices |
PC A03/MF A01 |
| Primary Description |
600/09 |
| Document Type |
NT |
| Cataloging Source |
NTIS/MT |
| Control Number |
432821226 |
| Origin |
NTIS |
| Type |
CAT |
