Record Display for the EPA National Library Catalog


Main Title Approximate multiphase flow modeling by characteristic methods
Author Weaver, James W.
CORP Author Robert S. Kerr Environmental Research Lab., Ada, OK.
Publisher Robert S. Kerr Environmental Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency ;
Year Published 1991
Report Number EPA 600/2-91/015
Stock Number PB91-190959
OCLC Number 26568907
Subjects Organic water pollutants--Mathematical models ; Groundwater flow--Mathematical models
Additional Subjects Water pollution ; Environmental models ; Mathematical models ; Pollution transport ; Fluid flow ; Organic solvents ; Hydrocarbons ; Groundwater ; Petroleum ; Immiscible liquids
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EMBD  EPA/600/2-91/015 NRMRL/GWERD Library/Ada,OK 10/27/1995
NTIS  PB91-190959 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation vii, 120 p. : ill. ; 28 cm.
The flow of petroleum hydrocarbons, organic solvents and other liquids that are immiscible with water presents the nation with some of the most difficult subsurface remediation problems. One aspect of contaminant transport associated releases of such liquids is the transport as a water-immiscible liquid phase. In the document approximate models of immiscible flow are presented for two- and three-phase flow. The approximations are constructed by representing the flow by hyperbolic equations which have method of characteristics solutions. This approximation has the additional benefit of being based on the fundamental wave behavior of the flow, which is revealed by the solutions of the models. An important result is that for three-phase flow, two flow regimes exist. The first is characterized by the displacement of one of the liquids into a bank which moves ahead of the other liquid. The second is characterized by almost complete bypassing of a liquid by the other. The occurrence of the flow regimes is dependent on the organic liquid properties, soil type and the initial amounts of the fluids present.
Cover title. "EPA/600/2-91/105" "May 1991" PB91-190959 Includes bibliographical references (p. 95-97).