| Main Title |
Eulerian-Lagrangian Localized Adjoint Method for the Advection-Diffusion Equation. |
| Author |
Celia, M. A. ;
Russell, T. F. ;
Herera, I. ;
Ewing, R. E. ;
|
| CORP Author |
Princeton Univ., NJ. Dept. of Civil Engineering and Operations Research. ;Colorado Univ. at Denver. Dept. of Mathematics. ;Universidad Nacional Autonoma de Mexico, Mexico City. Inst. de Geofisica.;Robert S. Kerr Environmental Research Lab., Ada, OK.;National Science Foundation, Washington, DC. |
| Publisher |
c1990 |
| Year Published |
1990 |
| Report Number |
NSF-8657419-CES; |
| Stock Number |
PB91-177253 |
| Additional Subjects |
Transport theory ;
Diffusion theory ;
Numerical solution ;
Approximation ;
Advection ;
Reprints ;
Localized adjoint methods
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB91-177253 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
22p |
| Abstract |
The paper presents a space-time localized adjoint method (LAM) approximation for the advection-diffusion transport equation. The formulation is based on a space-time discretization in which specialized test functions are defined. These functions locally satisfy the homogeneous adjoint equation within each element. The formulation leads to a general approximation that subsumes many specific methods based on combined Lagrangian and Eulerian approaches, so-called characteristic methods (CM's). The authors refer to the method as an Eulerian-Lagrangian localized adjoint method (ELLAM). The ELLAM approach not only provides a unification of CM methods, but also provides a systematic framework for incorporation of boundary conditions in CM approximations. Example calculations were presented to demonstrate that the ELLAM procedure can handle all types of boundary conditions. |
| Supplementary Notes |
Pub. in Advances in Water Resources, v13 n4 p187-206 1990. Prepared in cooperation with Colorado Univ. at Denver. Dept. of Mathematics, and Universidad Nacional Autonoma de Mexico, Mexico City. Inst. de Geofisica. Sponsored by Robert S. Kerr Environmental Research Lab., Ada, OK., and National Science Foundation, Washington, DC. |
| NTIS Title Notes |
Journal article. |
| Title Annotations |
Reprint: Eulerian-Lagrangian Localized Adjoint Method for the Advection-Diffusion Equation. |
| Category Codes |
46B; 72B |
| NTIS Prices |
PC A03/MF A01 |
| Primary Description |
600/15 |
| Document Type |
NT |
| Cataloging Source |
NTIS/MT |
| Control Number |
116430291 |
| Origin |
NTIS |
| Type |
CAT |
