WRRCTR No.125 Numerical Modeling of Liquid Waste Injection into a Two-Phase Fluid System

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dc.contributor.authorWheatcraft, Stephen W.
dc.contributor.authorPeterson, Frank L.
dc.date.accessioned2008-08-08T20:38:12Z
dc.date.available2008-08-08T20:38:12Z
dc.date.issued1979-08
dc.description.abstractThe injection of liquid wastes into a groundwater environment saturated with density-stratified fluid is simulated by a finite-difference numerical model. The fluid transport equation is simultaneously solved with the convective-dispersion equation for salinity. The migration of the injected liquid waste effluent is then tracked by solving a second convective-dispersion equation for an ideal tracer dissolved in the effluent. The convective-dispersion equation for the ideal tracer is solved with the flow velocities obtained from the simultaneous solution of the fluid transport and the salinity convective-dispersion equations. The equations are solved for the two-dimensional case of a line of injection wells set close together parallel to the coastline. Total length of the line of injection wells is considered to be much longer than the distance to the ocean so that any vertical cross section taken normal to the coastline will appear the same. Results are presented in a time-series of contour maps in the vertical plane: one map for each time-step, with lines of equal concentration for the salinity (isochlors); and the effluent tracer (isopleths). The more concentrated effluent is found to migrate vertically upward around the injection well due to buoyant force, while dilute effluent solutions migrate horizontally, displaying very little buoyant rise.
dc.description.sponsorshipOffice of Water Research and Technology, U.S. Dept. of Interior Grant/Contract No. A-071-HI 14-34-0001-7025, 7026, 8013
dc.format.extentix + 103 pages
dc.identifier.citationWheatcraft SW, Peterson FL. 1979. Numerical modeling of liquid waste injection into a two-phase fluid system. Honolulu (HI): Water Resources Research Center, University of Hawaii at Manoa. WRRC technical report, 125.
dc.identifier.urihttp://hdl.handle.net/10125/2262
dc.language.isoen-US
dc.publisherWater Resources Research Center, University of Hawaii at Manoa
dc.relation.ispartofseriesWRRC Technical Report
dc.relation.ispartofseries125
dc.subjectwaste disposal
dc.subjectinjection
dc.subjectgroundwater
dc.subjecthydrodynamics
dc.subjectdispersion
dc.subjectnumerical analysis
dc.subjectHawaii
dc.subjectsandbox model
dc.subjectfluid transport equation
dc.subjectconvective dispersion equation
dc.subject.lcshGroundwater -- Pollution -- Hawaii -- Mathematical models.
dc.subject.lcshInjection wells -- Hawaii.
dc.subject.lcshWaste disposal in the ground -- Mathematical models -- Hawaii.
dc.titleWRRCTR No.125 Numerical Modeling of Liquid Waste Injection into a Two-Phase Fluid System
dc.typeReport
dc.type.dcmiText

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