Main Title |
Screening Model for Nonaqueous Phase Liquid Transport in the Vadose Zone Using Green-Ampt and Kinematic Wave Theory. |
Author |
Weaver, J. W. ;
Charbeneau, R. J. ;
Lien, B. K. ;
|
CORP Author |
Robert S. Kerr Environmental Research Lab., Ada, OK. ;Texas Univ. at Austin. Environmental and Water Resources Engineering Group. |
Publisher |
cJan 94 |
Year Published |
1994 |
Report Number |
EPA/600/J-94/086; |
Stock Number |
PB94-146255 |
Additional Subjects |
Vadose water ;
Kinematics ;
Mathematical models ;
Multiphase flow ;
Soil water movement ;
Ground water ;
Water pollution control ;
Soil pollution ;
Kinematic equations ;
Subsurface flow ;
Oils ;
Liquid phases ;
Reprints ;
NAPL(Nonaqueous Phase Liquid)
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
NTIS |
PB94-146255 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
14p |
Abstract |
In the paper, a screening model for flow a nonaqueous phase liquid (NAPL) and associated chemical transport in the vadose zone is developed. The model is based on kinematic approximation of the governing equations for both the NAPL and a partitionable chemical constituent. The resulting governing equation is a first-order, quasi-linear hyperbolic equation to which the generalized method of characteristics can be applied. The approach generally neglects the contribution to the NAPL flux from capillary pressure gradients. During infiltration under ponded conditions, or when the NAPL flux exceeds the maximum effective conductivity of the soil, the effect of capillary suction is included in the model through the usage of the Green-Ampt model. (Copyright (c) 1994 by the American Geophysical Union.) |
Supplementary Notes |
Pub. in Water Resources Research, v30 n1 p93-105 Jan 94. Prepared in cooperation with Texas Univ. at Austin. Environmental and Water Resources Engineering Group. |
NTIS Title Notes |
Journal article. |
Title Annotations |
Reprint: Screening Model for Nonaqueous Phase Liquid Transport in the Vadose Zone Using Green-Ampt and Kinematic Wave Theory. |
Category Codes |
68D; 48G |
NTIS Prices |
PC A03/MF A01 |
Primary Description |
600/15 |
Document Type |
NT |
Cataloging Source |
NTIS/MT |
Control Number |
410527416 |
Origin |
NTIS |
Type |
CAT |