Tissa H. Illangasekare Publications

Water Resources

Microcomputer Based Interactive Aquifer Simulator, ASCE. Jour. of Hydraulics Division, HY5(2), 573?582 (Illangasekare, T.H. and J.H. Brannon, 1987)

Algorithm for Allocation Under Appropriation Doctrine, Groundwater, Vol. 24, No. 2, pp. 199?206 (Illangasekare, T.H. and H.J. Morel-Seytoux, 1986)

A Technique of Reinitialization for Efficient Simulation of Large Aquifers Using the Discrete Kernel Approach, Water Resources Research, Vol. 20, No. 11, pp. 1733?1742 (Illangasekare, T.H., H.J. Morel-Seytoux and K.L. Verdin, 1984)

A Discrete Kernel Model for Conjunctive Management of a Stream-Aquifer System," Journal of Hydrology, 85, pp 318?338 (Illangasekare, T.H. and H.J. Morel-Seytoux, 1986)

Stream-Aquifer Influence Coefficients for Simulation and Management, Water Resources Research, Vol. 18, No. 1, pp. 168?176 (Illangasekare, T. and H.J. Morel-Seytoux, 1982)

Naghettini, M., K.W. Potter and T.H. Illangasekare, 1996. Estimation of upper tail of flood-peak frequency distributions using hydrometeorological information, Water Resources Research, 32(6), 1729-1740.

Fate and Transport

Glover, K., J. Munakata-Marr, and T.H. Illangasekare, 2007. Biologically-Enhanced Mass Transfer of Tetrachloroethene from DNAPL in Source Zones: Experimental Evaluation and Influence of Pool Morphology, Envir. Sc. & technology. 2007; 41(4); 1384-1389.

Moreno_Barbero, E., S. Saenton and T.H. Illangasekare, 2007. The effect of DNAPLsource zone architecture on the performance of partitioning tracer tests: intermediate scale investigation, Vadose Zone J 6:725-734

Fucik, R, J. Miyska, M. Benes and T.H. Illangasekare, 2007. An improved semi-analytical solution for verification of numerical models of two-phase flow, Vadose Zone J. 2007 6: 93-104

Saenton, S and T.H. Illangasekare, 2007. Up-scaling of mass transfer rate coefficient for the numerical simulation of DNAPL dissolution in heterogeneous aquifers, Water Resources Resh. 43, W02428.

Fagerlund, F., T.H. Illangasekare, and A. Niemi, 2007. Nonaqueous-Phase Liquid Infiltration and Immobilization in Heterogeneous Media: 1. Experimental Methods and Two-Layered Reference,
Vadose Zone J. 6: 471-482.

Fagerlund, F, T.H. Illangasekare, and A. Niemi , 2007. Nonaqueous-Phase Liquid Infiltration and Immobilization in Heterogeneous Media: 2. Application to Stochastically Heterogeneous Formations, Vadose Zone J. 2007 6: 483-495.

Sakaki, T. and T. H. Illangasekare, 2007. Comparison of height-averaged and point-measured capillary pressure–saturation relations for sands using a modified Tempe cell, Water Resour. Res., doi:10.1029/2006WR005814.

Mikyška J. and Illangasekare T.H., 2007. Application of a multiphase flow code for investigation of influence of capillary pressure parameters on two-phase flow. Kybernetika Vol. 43 (2007), No. 6, 831—840

Mikyška J., Beneš M. and Illangasekare T.H. VODA Multiphase Flow Code for Investigation of NAPL Behavior at Heterogeneous Sand Layers. In: Proceedings of the 2nd International Conference on Porous Media and its Applications in Science and Engineering ICPM2, Ed. K. Vafai, CD-ROM, Engineering Conferences International, 2007

Beneš M., Fučík R., Mikyška J. and Illangasekare T.H. Analytical and Numerical Solution for One-Dimensional Two-Phase Flow in Homogeneous Porous Medium. In: Proceedings of the 2nd International Conference on Porous Media and its Applications in Science and Engineering ICPM2, Ed. K. Vafai, CD-ROM, Engineering Conferences International, 2007.

Shlomi, S., T. Sakaki, T. H. Illangasekare, and A. Michalak (2007), Evaluation of geostatistical data assimilation methodologies for estimating groundwater plume distributions using 3D tracer tests, Proceedings of the 37th Mid-Atlantic Industrial & Hazardous Waste Conference, University of Cincinnati, Ohio, March 21-23, 2007; Sorial, G. A.; Bagtzoglou, A., Eds. University of Cincinnati, Ohio, 2007; pp 86-92.

Fagerlund, F., A. Niemi, and T. H. Illangasekare (2008), Modeling of non-aqueous phase liquid (NAPL) migration in heterogeneous saturated media: Effects of hysteresis and fluid immobility in constitutive relations, Water Resour. Res., 44, W03409, doi:10.1029/2007WR005974. (among the 5 most downloaded articles in WRR for one week after it appeared)

Kaplan, A.R., J.Munakata-Marr,and T. H.Illangasekare, 2008. Biodegradation of Residual DenseNonaqueous-PhaseLiquidTetrachloroethene: EffectsonMassTransfer, Bioremediation Journal, 12(1):23-33.

Heiderscheidt, R.L. Siegrist, T.H. Illangasekare, 2008. Intermediate-Scale 2D Experimental Investigation of In Situ Chemical Oxidation using Potassium Permanganate for Remediation of Complex DNAPL Source Zones, J. of Contaminant Hydrology (accepted)

Sakaki, T., A. Limsuwat, K. M. Smits, and T. H. Illangasekare (2008), Empirical two-point a-mixing model for calibrating the ECH2O EC-5 soil moisture sensor in sands, Water Resour. Res. Special Collection on Hydrologic Measurement Methods, 44, W00D08, doi: 10.1029/ 2008 WR006870 (among the 5 most downloaded articles in WRR for two weeks)

Fučík R., Mikyška J., Illangasekare T.H. and Beneš M. Semi-Analytical Solution for Two-Phase Flow in Porous Media with a Discontinuity, Vadose Zone Journal 7:1001--1007 (2008), ISSN 1539-1663.

Beneš M., Fučík R., Mikyška J., and Illangasekare T.H. Analytical and Numerical Solution for One-Dimensional Two-Phase Flow in Homogeneous Porous Medium, to appear in Journal of Porous Media (2009), ISSN 1091-028X,.

Mikyška J., Beneš M. and Illangasekare T.H. Numerical Investigation of NAPL Behavior at Heterogeneous Sand Layers Using VODA Multiphase Flow Code, to appear in Journal of Porous Media (2009), ISSN 1091-028X, Impact factor 0.493

Frippiat, C.C., T. H. Illangasekare, G. A. Zyvoloski, (2008). Anisotropic effective medium solutions of head and velocity variance to quantify flow connectivity, Advances in Water Resources (Accepted for publication)

Porta, L., T. H. Illangasekare, P. Loden, Q. Han and Al. Jayasumana, 2008. Continuous Plume Monitoring Using Wireless Sensors: Proof Of Concept In Intermediate Scale Tank, ASCE. J. of Envir. Engineering (Accepted for publication)

Fučík R., Mikyška J., Sakaki T. and Illangasekare T. H., Implicit Numerical Scheme for Modelling Dynamic Effect in Capillary Pressure in Porous Medium, submitted to Proceedings of the Czech-Japanese Seminar in Applied Mathematics 2008, Kyushu University Fukuoka

Illangasekare, T.H, (2008) Understanding And Modelling Of Napl Source Zones Mass Flux For Remediation Design, IAHS Publication 324, Groundwater Quality: Securing Groundwater in Urban and Industrial Environments, Ed. M.C. Trefry, 364-371.

Book chapter on "Flow and entrapment of nonaqueous phase liquids in heterogenous soil formations", in a book entitled, in "Physical Nonequilibrium in Soils: Modeling and Application" , Ed. H.M. Selim and L. Ma, pp 417-435.Ann Arbor Press, 1998.

A Discrete Kernel - Method of Characteristics Groundwater Solute Transport Model, Water Resou. Research, 25(5), 857?867. (Illangasekare, T.H. and P. Doll, 1989).

Multiphase flow in porous media, Centrifuge 91, Proc. of the International Conference Centrifuge 91, Eds. Ko and McLean, 517?523, 1991. (Illangasekare, T., Znidarcic, D., Al_Sheridda, M., and Reible, D.D.)

A laboratory analysis of the effect of macropores on solute transport, Groundwater, 32(3), 1994, 381-389 (D. Wildenschild, K.H. Jensen, K. Villholth and T.H. Illangasekare).

Three-dimensional aquifer flow and transport by integral transforms, J. of Hydrology, 161, pp 109-131, 1994, (Illangasekare, T.H. J.H. Brannon and B. Amadei)

Use of tension infiltrometer data with unsaturated hydraulic conductivity models,32(6), 1017-1021. 1994. Groundwater (Nachabe, M. and T.H. Illangasekare).

Analytical solutions for water flow and solute transport in the unsaturated zone, Groundwater, 33(2) 304-310, 1995 (M. Nachabe, Islas, A. and Illangasekare, T.H.).

Effect of heterogeneity on transport and entrapment of nonaqueous phase waste products in aquifers: an experimental study. 121(8), 572-579, August 1995, ASCE J. of Env. Eng.( Illangasekare, T.H., D.N. Yates and E.J. Armbruster )

Fingering of dense nonaqueous phase liquids in porous media 1. Experimental Investigation, Water Resources Resh., 31(5),1213-1222, May 1995.(R.J. Held and T.H. Illangasekare).

Fingering of dense nonaqueous phase liquids in porous media 2.Analysis and classification. Water Resources Resh., 31(5), 1223-1231, May 1995 (R.J. Held and T.H. Illangasekare).

Experimental study of movement and distribution of dense organic contaminants in heterogenous aquifers, , J. of Contaminant Hydrology, ,20, 1-25 (Illangasekare, T.H., J. L. Ramsey, K.H. Jensen and M. Butts).

Process Upscaling of Nonaqueous Phase Liquid Behavior in Heterogenous Aquifers, Proc. of Nonaqueous Phase Liquids in the Subsurface Environment: Assessment and Remediation, 1996 ASCE Annual Convention and Exposition, Washington DC, November 1996, Ed. L.N. Reddi, pp 25-45.(Invited Paper)(Illangasekare, T.H. , 1996).

Infiltration over a heterogeneous watershed: influence of rainfall excess, ASCE J. of Hydrologic Engineering. (M.H. Nachabe, T.H. Illangasekare, H.J. Morel-Seytoux and H. Ruan, 1997).

A two stage procedure for determining hydraulic characteristics using syringe pump and outflow observations, in press in J. of Soil Sci. Soc of Amer. 61(2), 347-359. ( Wildenschild, D., K. H. Jensen, K.J. Hollenbeck,T.H. Illangasekare, D. Znidarcic and T. Sonnenborg, 1997).

Transport and recovery of bacteriophage PRD1 in an unconfined sand aquifer:effect of sewage-derived organic matter, in press in Environmental Science and Technology. (Pieper, A.P., J.N. Ryan, R.W. Harvey, G.L. Amy, T.H. Illangasekare and D.W. Metge, 1997)

A model to couple overland flow and infiltration nto macroporous vadose zone, J. of Hydrology, 210, pp 116-127 (Ruan, H, and T.H. Illangasekare, 1998)

Numerical simulation of NAPL flow in the subsurface, Computational Geo Sciences, 2(3). (Kuiper, L. and T.H. Illangasekare, 1998).

Particle and Plotneum mobilization in macroporous soils during rainfall simulations, Envir. Sc. And Tech., 32, pp 476-482 (Ryan, J.N., T.H. Illangasekare, M.I. Litaor, and R. Shannon, 1998.)

Dawson, H. and T.H. Illangasekare, 1999. Influence of geologic heterogenity and chemical complexity on the transport and distribution of nonaqueous phase liquid waste, EPA peer reviewed publication, US EPA Region 8, pp45.

Estimation of relative hydraulic conductivity based on a sheet model, J. of Hydrology, 218, pp 83-93. (Ruan, H, and T.H. Illangasekare, 1999)

Retention of liquid contaminants in layered soils, Contaminant Hydrology, 39, pp91-108. ) Walser, G.S., T.H. Illangasekare and A.T. Corey, 1999)

Effect of groundwater flow dimensionality on mass transfer from entrapped nonaqueous phase liquids, Water Res. Resh, 36(4),971-979. (Saba. T and T.H. Illangasekare, 2000)

Chapter on "Pump-and -treat design for plume containment: processes, applications and limitations," in ASCE Manuals and Reports on Engineering Practice No. 100. "Groundwater Contamination by Organic Pollutants-Analysis and Remediation, Ed. J.J. Kaluarachchi, pp79-119. (Illangasekare, T.H. and D. Reible, 2000)

Intermediate scale experiments and numerical simulations of transport under radial flow in two-dimensional heterogeneous porous medium, Water Res. Resh,36(10), 2869-2878. (Chao, H-C, H. Rajaram and T.H. Illangasekare ,2000.)

Surfactant enhanced dissolution of entrapped NAPLs, accepted for publication in J. of Cont. Hydrology, 51 (1-2) pp. 63-82, (Saba, T., T.H. Illangasekare and J. Ewing, 2000.)

A new tracer-density criterion for heterogeneous porous media, Water Resources Research 37(1), 21-31. (Barth, G. R., T.H. Illangasekare, M. C. Hill, and H. Rajaram, 2001)

Modeling of two-phase flow in membranes and porous media in low gravity as applied to plant irrigation in micro-gravity, Water Resources Research, 37(5), 1231-1243 (Scovazzo, P, T.H. Illangasekare, A. Hoehn, and P. Todd, 2001)

Partitioning and Interfacial Tracers for Differentiating NAPL Entrapment Configuration: Column-Scale Laboratory Results", Accepted for publication, Environmental Science and Technology (Dai, D., and Illangasekare, T.H., and Barranco, F.T., 2001)

Predictive modeling of flow and transport in a two-dimensional intermediate-scale, heterogeneous porous medium, Water Resources Research, 37(10), 2503-251 (Barh, G.R., M.C. Hill, T.H. Illangasekare and H. Rajaram, 2001

Assessing multicomponent DNAPL biostabilization potential I: Coal tar. ASCE, J. of Environmental Engineering, December 2001, pp-10653-1072. (
Ramaswami, A., P.K. Johansen, M. Isleyen, A.R. Bielefeldt and T. Illangasekare, 2001.

Assessing multicomponenet DNAPL biostabilization potential II: Arclor ASCE, J. of Environmental Engineering, December 2001, pp-1073-1079. (Bielefeldt, A. R., A. M. Riffel, A. Ramaswami and T. Illangasekare, 2001)

Convergent-flow tracer tests in heterogeneous media: combined experimental-numerical analysis for determination of equivalent parameters, 57, 129-145, J. of Contaminant Hydrology. (Fernandez-Garcia, D., X. Sanchez-Villa and T. Illangasekare, 2002)

Effects of source zone heterogeneity on surfactant enhanced NAPL dissolution and resulting remediation end-points, accepted for publication in J. of Contaminant Hydrology, 59, 27-44 (Saenton, S., T.H. Illangasekare, K. Soga and T.A. Saba. 2001)

Bielefeldt, A.R., T. Illangasekare, M. Uttecht, and R. LaPlante. 2002. Biodegradation of Propylene Glycol and Associated Hydrodynamic Effects in Sand. Water Research. 36(7): 1707-1714.

Bielefeldt, A., C. McEachern and T. Illangasekare. 2002. Hydrodynamic Changes in Sand due to Biodegradation of Naphthalene and Decane. ASCE Journal of Environmental Engineering. 128(1): 51-59.

Barth, G., T.H. Illangasekare, H. Rajaram and M. Hill, 2003. Demonstration of solute flux sensitivity to entrapped non aqueous phase liquids: intermediate-scale experiments in heterogeneous porous media, J. of Contaminant Hydrology, 67 (2003) 247– 268.

Davis, C., Cort, T., Dai D., Illangasekare, T. H. and Munakata-Marr,, J, 2003. Effects of Heterogeneity and Experimental Scale on the Biodegradation of Diesel, Biodegradation, 14:373-384.

Kechavarzi, C., Soga, K., and Illangasekare, T.H., 2004. “Study of infiltration and redistribution of LNAPL in the vadose zone using two-dimensional laboratory simulations” Journal of Contaminant Hydrology, available online from November 17, 204. print to appear in 2005.

Soga, K, Page, J.W.E and Illangasekare, T. H., 2004, A review of NAPL source zone remediation efficiency and the mass flux approach, J. of Hazardous Waste, 110, 13-27.

Fernando-Garcia, D., T.H. Illangasekare and H. Rajaram, 2004. Conservative and Sorptive Forced-Gradient and Uniform Flow Tracer Tests in a Three-Dimensional Laboratory Test Aquifer, Water Res. Resh. 40 (10), W10103.

Bielefeldt, A.R., T. Illangasekare, and R. LaPlante. 2004. Biodegradation of Propylene Glycol from Aircraft Deicing Fluid in Laboratory Columns under Variable Loading. ASCE Journal of Environmental Engineering, 130(10): 1147-1153.

Fucik, R. and Illangasekare, T.H., Mikyska, 2004. J., Evaluation of saturation-dependent flux on two-phase flow using generalized semi-analytic solution, in peer-reviewed Proceedings on the Czech Japanese Seminar in Applied Mathematics, eds. M. Benes, J. Mikyska, T. Oberhuber, Faculty of Nuclear Sciences and Physical Engineering, Czech Technical University in Prague, 2005, pp. 25--37, ISBN 80-01-03181-0

Mikyska, J. and Illangasekare, T.H., 2004. Application of a Multiphase Flow Model for Simulations of NAPL Behavior at Inclined Material Interfaces, in peer-reviewed Proceedings on the Czech Japanese Seminar in Applied Mathematics, eds. M. Benes, J. Mikyska, T. Oberhuber, Faculty of Nuclear Sciences and Physical Engineering, Czech Technical University in Prague, 2005, pp. 131--141, ISBN 80-01-03181-0

Fernando-Garcia, D., T.H. Illangasekare and H. Rajaram, 2004. Conservative and Sorptive Forced-Gradient and Uniform Flow Tracer Tests in a Three-Dimensional Laboratory Test Aquifer, Water Res. Resh. 40(10, W101013, 17 pages.

Kechavarzi, C., Soga, K., and Illangasekare, T.H., 2005. Two-dimensional laboratory simulation of LNAPL infiltration and redistribution in the vadose zone, Journal of Contaminant Hydrology, 76, 211-233.

Fernàndez-Garcia D., T.H. Illangasekare, H. Rajaram, 2005. Differences in the scale dependence of dispersivity and retardation factors estimated from forced-gradient and uniform flow tracer tests in three-dimensional physically and chemically heterogeneous porous media, Water Resour. Res., 41, W03012, doi:10.1029/2004WR003125.

Fernàndez-Garcia D., H. Rajaram, T.H. Illangasekare, 2005b. Assessment of the predictive capabilities of stochastic theories in a three-dimensional laboratory test aquifer: Effective hydraulic conductivity and temporal moments of breakthrough curves, Water Resour. Res., 41, W04002, doi:10.1029/2004WR003523

Fernàndez-Garcia, D., Illangasekare, T. H., Rajaram, H. (2005), Differences in the scale-dependence of dispersivity estimated from temporal and spatial moments in physically and chemically heterogeneous porous media. Advances in Water Resources (ISSN 0309-1708), VOL. 28, 745-759.

Khaitan, S., S. Kalainesan, L.E. Erickson, P. Kulakow, S. Martin, R. Karthikeyan, S. L. L. Hutchinson4, L. C. Davis, T.H. Illangasekare, and Crispin Ng’oma, 2005. Remediation Of Sites Contaminated By Oil Refinery Operations, Environmental Progress, Vol 25.

Moreno-Barbero, E. and T.H. Illangasekare, 2005. Simulation and performance assessment of partitioning tracer tests in heterogeneous aquifers, In print in Environmental & Engineering Geoscience, Vol. XI, No. 4, pp395-404.

Moreno-Barbero, E, and T.H. Illangasekare, 2005. Influence of pool morphology on the performanceof partitioning tracer tests: evaluation of the equilibrium assumption, in print in Water Resources Resh., 42, W04408, pp11.

Saenton, S and T.H. Illangasekare, 2006. Up-scaling of mass transfer rate coefficient for the numerical simulation of DNAPL dissolution in heterogeneous aquifers, accepted with revision in Water Resources Resh.

Saenton, S and T.H. Illangasekare, 2006. Investigation of effects of partial removal of NAPL mass from source zone on downgradient plume concentrations: Experimental and numerical modeling studies accepted with revision in J. of Con. Hydrology

Illangasekare, T.H. Jensen, K., Javandal, I., and Mayer. A.S., 2005. Chapter on “Migration and Distribution” in “Soil and Groundwater Contamination: Nonaqueous Phase Liquids”, Ed. A. S. Mayer and S.M. Hassanizadeh, Water Resources Monograph 17, American Geophysical Union,

Illangasekare, Et al, 2006. Imapcats of the 2004 tsunami on groundwater resources in Sri Lanka, Water Resources Research, W05202 pp.1-9.

Fracture flow

Estimation of uplift pressure in cracks in older concrete gravity dams, Part 1 : Analytical solution and parametric study, ASCE Journal of Energy Division (Amadei, B., T.H. Illangasekare, D.I. Morris, and H. Boggs, 1989)

Stability of concrete dams with drained finite cracks, ASCE J. of Energy Engineering, 118(3).,149-163,(B. Amadei and T. Illangasekare, 1992)

Analytical solution for steady and transient flow in non-homogeneous and anisotropic rock joints, 1992, Int. J. of Rock Mech. and Mining, Sci. and Geomech. Abstr., 29*6), pp561-572 (Amadei, B. and T.H. Illangasekare).

Numerical and centrifuge modeling of an arch dam on jointed rock, Proc. ASCE Conf. Geotechnical Practice in Dam Rehabilitation, ASCE Tech. Publication #35, pp. 69-85, 1993. ( Amadei, B., Illangasekare, T.H., Chinnaswamy, C., and Lin, C.T.)

A mathematical model for flow and solute transport in non-homogeneous rock fractures, Int. J. of Rock Mech. and Min. Sci., 1994, (Amadei, B. and T.H. Illangasekare).

Effects of turbulence on fracture flow and advective solute transport of solutes, Int. J. of Rock Mech. and Min. Sci., &Geomechanic Abstr., 32(4), 346-356. (Amadei, B., Carlier, J.F. and T.H. Illangasekare).

Flow in snow

Modeling of meltwater infiltration in subfreezing snow, Water Resources Research, 26(5), 1001?1012,1990 ( T.H. Illangasekare, Walter, R.J. Jr., M.F. Meier and W.T. Pfeffer)

Analysis of meltwater imbibition into dry snow, J. of Glaciology, 36(123),p238?246,1990 (W.T. Pfeffer, T.H. Illangasekare and M.F. Meier).

Retention of Greenland runoff by refreezing; implications for projected future sea level change, J. of Geophysical Research, 96(C12), p22,117?22,124. (T. Pfeffer, M. Meier and T.H. Illangasekare)

A two-dimensional finite element method for snow melting and water infiltration in a layered subfreezing snow pack. I Theoretical development and model formulation. Water Resources Resh., 30(8),2363-2376, 1994 (Tseng, P.H., Illangasekare,T.H and Meier, M.F)

A two-dimensional finite element method for snow melting and water infiltration in a layered subfreezing snow pack. Advances in Water Resources,Vol. 17(4), 205?219, 1994 (Tseng, P.H., Illangasekare, T.H and Meier, M.F)

Estimation of upper tail of flood-peak frequency distributions using hydrometeorological information, Water Resources Research, 32(6), 1729-1740. (M. Naghettini, K.W. Potter and T.H. Illangasekare, 1996)

Wireless Sensor Networks

Bandara, H.M.N.D., A. P. Jayasumana and I. Ray, (2008). Key Pre-distribution Based Secure Backbone Design for Wireless Sensor Networks," Proc. 3rd IEEE International Workshop on Practical Issues in Building Sensor Network Applications (SenseApp), Montreal, Canada, Oct. 2008.

Bandara, H.M.N.D., A. P. Jayasumana and T. H. Illangasekare, 2008, "Cluster Tree Based Self Organization of Virtual Sensor Networks," Proc. * IEEE Globecom Workshop on Wireless Mesh and Sensor Networks, New Orleans, LA, Nov. 2008.

Jayasumana, A.P., Q. Han and T. Illangasekare, "Virtual Sensor Networks - A Resource Efficient Approach for Concurrent Applications, Proc. 4th International Conference on Information Technology: New Generations (ITNG 2007), Las Vegas, NV, April 2007.

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