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Hari S. Viswanathan

Hari Viswanathan

Phone (505) 665-6737


  • Earth and Space Sciences
  • Subsurface flow and transport
  • Hydrology
  • Geochemistry


1. Subsurface flow and transport modeling

2. Reactive transport modeling

3. Applications include: hydraulic fracturing, carbon sequestration, and radionuclide transport


B.S., Chemical Engineering with Honors, University of California, Santa Barbara (1993)

M.S., Ph.D., Environmental Engineering, University of Illinois, Urbana-Champaign (1995,1999)


LANL Positions

Subsurface Flow and Transport Team Leader, Computational Earth Science (EES-16)

Scientist 4


Professional Societies

American Geophysical Union

American Chemical Society



Esmilla writing award for masters thesis

2001 LANL distinguished performance award

2013 LAAP award for hydraulic fracturing efforts



[Robinson, BA * Wolfsberg, AV * Viswanathan, HS * Reimus, PW], "A colloid-facilitated transport model with variable colloid transport properties", GEOPHYSICAL RESEARCH LETTERS, Vol.34, iss.9, L09401, MAY 4 2007.

[Zyvoloski, G.A. * Robinson, B.A. * Viswanathan, H.S.], "Generalized dual porosity: A numerical method for representing spatially variable sub-grid scale processes", Advances in Water Resources, Vol.31, iss.3, p.535-544, March 2008.

[Viswanathan, HS * Pawar, RJ * Stauffer, PH * Kaszuba, JP * Carey, JW * Olsen, SC * Keating, GN * Kavetski, D * Guthrie, GD], "Development of a hybrid process and system model for the assessment of wellbore leakage at a geologic CO2 sequestration site", ENVIRONMENTAL SCIENCE & TECHNOLOGY, Vol.42, iss.19, p.7280-7286, OCT 1 2008.

[Chaudhuri, A * Rajaram, H * Viswanathan, H], "Alteration of fractures by precipitation and dissolution in gradient reaction environments: Computational results and stochastic analysis", WATER RESOURCES RESEARCH, Vol.44, iss.10, W10410, OCT 18 2008.

[Newell, DL * Kaszuba, JP * Viswanathan, HS * Pawar, RJ * Carpenter, T], "Significance of carbonate buffers in natural waters reacting with supercritical CO2: Implications for monitoring, measuring and verification (MMV) of geologic carbon sequestration", GEOPHYSICAL RESEARCH LETTERS, Vol.35, iss.23, L23403, DEC 11 2008.

[Stauffer, PH * Viswanathan, HS * Pawar, RJ * Guthrie, GD], "A System Model for Geologic Sequestration of Carbon Dioxide", ENVIRONMENTAL SCIENCE & TECHNOLOGY, Vol.43, iss.3, p.565-570, FEB 1 2009.

[Chaudhuri, A * Rajaram, H * Viswanathan, H * Zyvoloski, G * Stauffer, P], "Buoyant convection resulting from dissolution and permeability growth in vertical limestone fractures", GEOPHYSICAL RESEARCH LETTERS, Vol.36, L03401, FEB 4 2009.

[Connington, K * Kang, QJ * Viswanathan, H * Abdel-Fattah, A * Chen, SY], "Peristaltic particle transport using the lattice Boltzmann method", PHYSICS OF FLUIDS, Vol.21, iss.5, 053301, MAY 2009.

[Kang, QJ * Lichtner, PC * Viswanathan, HS * Abdel-Fattah, AI], "Pore Scale Modeling of Reactive Transport Involved in Geologic CO2 Sequestration", TRANSPORT IN POROUS MEDIA, Vol.82, iss.1, spec. iss.SI, p.197-213, MAR 2010.

[Srinivasan, G * Tartakovsky, DM * Dentz, M * Viswanathan, H * Berkowitz, B * Robinson, BA], "Random walk particle tracking simulations of non-Fickian transport in heterogeneous media", JOURNAL OF COMPUTATIONAL PHYSICS, Vol.229, iss.11, p.4304-4314, JUN 1 2010.

[Wang, M. * Kang, Q. * Viswanathan, H.], "Electroosmosis of dilute electrolyte solutions in microporous media", Proceedings of the ASME Micro/Nanoscale Heat and Mass Transfer International Conference 2009, MNHMT2009, Vol.1, p.195-202, 2010.

[Keating, G.N. * Middleton, R.S. * Stauffer, P.H. * Viswanathan, H.S. * Letellier, B.C. * Pasqualini, D. * Pawar, R.J. * Wolfsberg, A.V.], "Mesoscale carbon sequestration site screening and CCS infrastructure analysis", Environmental Science and Technology, Vol.45, iss.1, p.215-222, 20110101.

[Wang, M * Kang, QJ * Viswanathan, H * Robinson, BA], "Modeling of electro-osmosis of dilute electrolyte solutions in silica microporous media", JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH, Vol.115, B10205, OCT 9 2010.

[Keating, G.N. * Middleton, R.S. * Viswanathan, H.S. * Stauffer, P.H. * Pawar, R.J.], "How storage uncertainty will drive CCS infrastructure", Energy Procedia, Vol.4, p.2393-2400, 2011.

[Stauffer, P.H. * Pawar, R.J. * Surdam, R.C. * Jiao, Z. * Deng, H. * Lettelier, B.C. * Viswanathan, H.S. * Sanzo, D.L. * Keating, G.N.], "Application of the CO2-PENS risk analysis tool to the Rock Springs Uplift, Wyoming", Energy Procedia, Vol.4, p.4084-4091, 2011.

[Kaszuba, JP * Viswanathan, HS * Carey, JW], "Relative stability and significance of dawsonite and aluminum minerals in geologic carbon sequestration", GEOPHYSICAL RESEARCH LETTERS, Vol.38, L08404, APR 22 2011.

[Keating, E.H. * Hakala, J.A. * Viswanathan, H. * Capo, R. * Stewart, B. * Gardiner, J. * Guthrie, G. * William Carey, J. * Fessenden, J.], "The challenge of predicting groundwater quality impacts in a CO2 leakage scenario: Results from field, laboratory, and modeling studies at a natural analog site in New Mexico, U.S.A.", Energy Procedia, Vol.4, p.3239-3245, 2011.

[Stauffer, PH * Keating, GN * Middleton, RS * Viswanathan, HS * Berchtod, KA * Singh, RP * Pawar, RJ * Mancino, A], "Greening Coal: Breakthroughs and Challenges in Carbon Capture and Storage", ENVIRONMENTAL SCIENCE & TECHNOLOGY, Vol.45, iss.20, p.8597-8604, OCT 15 2011.

[Chaudhuri, A * Rajaram, H * Viswanathan, H], "Fracture alteration by precipitation resulting from thermal gradients: Upscaled mean aperture-effective transmissivity relationship", WATER RESOURCES RESEARCH, Vol.48, W01601, JAN 18 2012.

[Severino, G * Tartakovsky, DM * Srinivasan, G * Viswanathan, H], "Lagrangian models of reactive transport in heterogeneous porous media with uncertain properties", PROCEEDINGS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES, Vol.468, iss.2140, p.1154-1174, APR 8 2012.

[Middleton, RS * Keating, GN * Viswanathan, HS * Stauffer, PH * Pawar, RJ], "Effects of geologic reservoir uncertainty on CO2 transport and storage infrastructure", INTERNATIONAL JOURNAL OF GREENHOUSE GAS CONTROL, Vol.8, p.132-142, MAY 2012.

[Middleton, RS * Keating, GN * Stauffer, PH * Jordan, AB * Viswanathan, HS * Kang, QJJ * Carey, JW * Mulkey, ML * Sullivan, EJ * Chu, SPP * Esposito, R * Meckel, TA], "The cross-scale science of CO2 capture and storage: from pore scale to regional scale", ENERGY & ENVIRONMENTAL SCIENCE, Vol.5, iss.6, p.7328-7345, JUN 2012.

[Viswanathan, H. * Dai, Z. * Lopano, C. * Keating, E. * Hakala, J.A. * Scheckel, K.G. * Zheng, L. * Guthrie, G.D. * Pawar, R.], "Developing a robust geochemical and reactive transport model to evaluate possible sources of arsenic at the CO2 sequestration natural analog site in Chimayo, New Mexico", International Journal of Greenhouse Gas Control, Vol.10, p.199-214, September 2012.

[Keating, Elizabeth H. * Newell, Dennis L. * Viswanathan, Hari * Carey, J. W. * Zyvoloski, G. * Pawar, Rajesh], "CO2/Brine Transport into Shallow Aquifers along Fault Zones", ENVIRONMENTAL SCIENCE & TECHNOLOGY, Vol.47, iss.1, p.290-297, JAN 1 2013.

[Severino, Gerardo * De Bartolo, Samuele * Toraldo, Gerardo * Srinivasan, Gowri * Viswanathan, Hari], "Travel time approach to kinetically sorbing solute by diverging radial flows through heterogeneous porous formations", Water Resources Research, Vol.48, iss.12, p.W12527, 2012.

[Keating, Elizabeth H. * Hakala, J. Alexandra * Viswanathan, Hari * Carey, J. William * Pawar, Rajesh * Guthrie, George D. * Fessenden-Rahn, Julianna], "CO2 leakage impacts on shallow groundwater: Field-scale reactive-transport simulations informed by observations at a natural analog site", APPLIED GEOCHEMISTRY, Vol.30, p.136-147, MAR 2013.

[Kelkar, S. * Srinivasan, G. * Robinson, B. A. * Roback, R. * Viswanathan, H. * Rehfeldt, K. * Tucci, P.], "Breakthrough of contaminant plumes in saturated volcanic rock: implications from the Yucca Mountain site", GEOFLUIDS, Vol.13, iss.3, p.273-282, AUG 2013.

[Chaudhuri, A. * Rajaram, H. * Viswanathan, H.], "Early-stage hypogene karstification in a mountain hydrologic system: A coupled thermohydrochemical model incorporating buoyant convection", WATER RESOURCES RESEARCH, Vol.49, iss.9, p.5880-5899, SEP 2013.

[Dai, Zhenxue * Keating, Elizabeth * Bacon, Diana * Viswanathan, Hari * Stauffer, Philip * Jordan, Amy * Pawar, Rajesh], "Probabilistic evaluation of shallow groundwater resources at a hypothetical carbon sequestration site", SCIENTIFIC REPORTS, Vol.4, p.4006, MAR 7 2014.