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Sharad M. Kelkar

Sharad Kelkar

Phone (505) 667-4639


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


Sharad is a seasoned professional with 25+ years of experience in the area of coupled thermal-fluid flow-deformation (THM) processes in geomedia. He has developed and applied novel simulation capabilities in this area to problems of practical importance. He has published his work in a number of journal articles, presentations and reports.



  • 1979, M.S., Petroleum Engineering, University of Texas at Austin
  • 1974, M.Sc., Physics, University of Bombay, India.
  • 1972, B.Sc., Physics, University of Bombay, India.

Additional Education

  • 1977, Passed the Ph.D. qualifying examination in Physics, University of Texas at Austin
  • 1987-1990, Additional coursework including Hydrology, Rock Mechanics, Geophysics, and Numerical Methods at the Minerals Engineering Department at the University of California, Berkeley.
  • 1999-2001, Coursework in Psychology at UNM.

LANL Positions

Scientist in EES-16


Professional Societies

  • American Geophysical Union
  • Geothermal Resources Council
  • American Rock Mechanics Association


[Kelkar, S. * Roback, R. * Robinson, B. * Srinivasan, G. * Jones, C. * Reimus, P.], "Saturated zone plumes in volcanic rock: Implications for Yucca Mountain", Proceedings of the 11th International High Level Radioactive Waste Management Conference, IHLRWM, Vol.2006, p.97-104, 2006.

[Kelkar, S. * Ding, M. * Chu, S. * Robinson, B. * Arnold, B. * Meijer, A.], "An updated site scale saturated zone ground water transport model for yucca mountain", American Nuclear Society - 12th International High-Level Radioactive Waste Management Conference 2008, Vol.1, p.56-63, 2008.

[Ding, M * Kelkar, S * Fabryka-Martin, JT * Caporuscio, FA * Meijer, A], "GEOC 113-Surface complexation modeling of radionuclide sorption in the saturated zone of Yucca Mountain rocks", ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, Vol.235, APR 6 2008.

[Kelkar, S. * Ding, M. * Chu, S. * Robinson, B.A. * Arnold, B. * Meijer, A. * Eddebbarh, A.-A.], "Modeling solute transport through saturated zone ground water at 10 km scale: Example from the Yucca Mountain license application", Journal of Contaminant Hydrology, Vol.117, iss.1-4, p.7-25, 2010.

[Kelkar, S. * Ding, M. * Chu, S. * Robinson, B. * Arnold, B. * Meijer, A.], "An updated site scale saturated zone ground water transport model for yucca mountain", AIChE Annual Meeting, Conference Proceedings, 2008.

[Kelkar, S. * Zyvoloski, G. * Rapaka, S. * Lewis, K.], "Modeling shear failure and permeability enhancement due to coupled thermal-hydrological-mechanical processes in enhanced geothermal reservoirs", Transactions - Geothermal Resources Council, Vol.35 1, p.413-418, 2011.

[Painter, SL * Gable, CW * Kelkar, S], "Pathline tracing on fully unstructured control-volume grids", COMPUTATIONAL GEOSCIENCES, Vol.16, iss.4, p.1125-1134, SEP 2012.

[Lewis, K. * Zyvoloski, G.A. * Kelkar, S. * Carey, J.W.], "Coupled stress and flow along interfaces in the wellbore environment in relation to CO2 sequestration", 46th US Rock Mechanics / Geomechanics Symposium 2012, Vol.3, p.2236-2242, 2012.

[Kelkar, Sharad * Karra, Satish * Zyvoloski, George * Pawar, Rajesh * Rapaka, Saikiran], "Coupled plastic failure and permeability in rocks: A modeling approach", 46th US Rock Mechanics / Geomechanics Symposium 2012, Vol.4, p.2951-2957, 2012.

[Lewis, K. C. * Karra, Satish * Kelkar, Sharad], "A Model for Tracking Fronts of Stress-Induced Permeability Enhancement", TRANSPORT IN POROUS MEDIA, Vol.99, iss.1, p.17-35, AUG 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.

[Pandey, S.N. * Chaudhuri, A. * Kelkar, S. * Sandeep, V.R. * Rajaram, H.], "Investigation of permeability alteration of fractured limestone reservoir due to geothermal heat extraction using three-dimensional thermo-hydro-chemical (THC) model", Geothermics, Vol.51, p.46-62, July 2014.

[Dempsey, D. * Kelkar, S. * Lewis, K. * Hickman, S. * Davatzes, N. * Moos, D. * Zemach, E.], "Modeling shear stimulation of the desert peak EGS well 27-15 using a coupled thermal-hydrological-mechanical simulator", 47th US Rock Mechanics / Geomechanics Symposium 2013, Vol.2, p.1006-1019, 2013.

[Levine, J.S. * Kelkar, S. * Stauffer, P.H.], "Hydraulically induced shear failure during CO2 injection into deep ocean sediments", 47th US Rock Mechanics / Geomechanics Symposium 2013, Vol.1, p.111-116, 2013.

[Dempsey, David * Kelkar, Sharad * Pawar, Rajesh * Keating, Elizabeth * Coblentz, David], "Modeling caprock bending stresses and their potential for induced seismicity during CO2 injection", International Journal of Greenhouse Gas Control, Vol.22, p.223-236, March 2014.

Kelkar S, Zyvoloski G, Rapaka S, Lewis K, Karra S, Mishra PK, Viswanathan H, Chu S, Coblentz D, Pawar R, 2013, Modeling coupled thermo-hydro-mechanical processes in subsurface geological media using the simulator FEHM. International Journal of Rock Mechanics and Mining Sciences, IJRMMS-D-13-00087

Ding M, Kelkar S, and Meijer A 2011. Modeling of Radionuclide Sorption in the Saturated Zone of Yucca Mountain Rocks: Surface Complexation Approach. Journal of Environmental radioactivity.


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