Dr. Sub Gollahalli

EPSCoR Research Focus: 
Biofuel Utilization and Combustion
Professor & Lesch Centennial Chair
School of Aerospace and Mechanical Engineering
University of Oklahoma
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Education: 
B. E. | Mechanical Engineering | The University of Mysore, Mysore, India | 1963
M. E. | Propulsion Engineering | The Indian Institute of Science, Bangalore, India | 1965
M. A. Sc. | Mechanical Engineering | The University of Waterloo, Waterloo, Ontario, Canada | 1970
Ph.D. | Mechanical Engineering | The University of Waterloo, Waterloo, Ontario, Canada | 1973
Research Interests: 

Cellulosic Biofuels Research:  Biofuel Utilization and Combustion

Dr. Gollahalli’s research interests encompass fundamental and applied topics in energy and combustion fields.

The projects directed by him include combustion of liquid drops and sprays, flame characteristics of pulverized coal and synthetic fuels, combustion of hybrid fuels such as emulsions and slurries, internal combustion engine and gas turbine combustors, turbulent diffusion flames in cross-flow streams, and microgravity combustion.

Pictured (Right):  Dr. Gollahalli’s research will aid in the utilization of the biofuels that are developed from switchgrass plants.  (Photo credit: OSU Agriculture Communications)

Teaching Responsibilities: 
UNDERGRADUATE COURSES: Thermodynamics I, IC Engines, Aerospace Propulsion, Energy Conversion Systems, Principles of Measurements, Engine Laboratory
GRADUATE COURSES: Gas Turbine Power Plants, Turbomachinery, Fuels and Lubrication, Combustion, Experimental Methods in Thermal Sciences, Rocket Propulsion, Aircraft Jet Propulsion
Key Publications: 

Publications in bold were supported in part through the OK EPSCoR RII Award

  • Periasamy, C., and S. R. Gollahalli. "An Experimental Investigation of Kerosene Spray Flames in Inert Porous Media near Lean Extinction." Chapter 29, Flare Experimental Modeling in the Book Edited by Charles Baukal, Taylor and Francis Publications (In Press): 573-03.

  • Love, N. D., R. N. Parthasarathy, and S. R. Gollahalli. "Numerical Prediction of NO in Laminar Partially-Premixed Fuel-Rich Biofuel Flames." 46th AIAA/ASME/SAE/ASEE Joint Propulsion/8th International Energy Conversion Engineering Conference, Nashville, TN (25-28 July 2010). Paper No. AIAA-2010-6703.

  • Singh, V., S. R. Gollahalli, and R. N. Parthasarathy. "Effects of Equivalence Ratio on Emissions and Radiation from Laminar Partially Premixed Flames of Petroleum-Biofuel Blends." 46th AIAA/ASME/SAE/ASEE Joint Propulsion/8th International Energy Conversion Engineering Conference, Nashville, TN (25-28 July 2010). Paper No. AIAA-2010-6706.

  • Martinez, D.M., R. N. Partharsarathy, and S. R. Gollahalli. “Measurement of Drag Coefficients of Evaporating and Burning Liquid Biofuel Droplets.” 46th AIAA/ASME/SAE/ASEE Joint Propulsion/8th International Energy Conversion Engineering Conference, Nashville, TN (25-28 July 2010). Paper No. AIAA-2010-6705.

  • Barrajas, P.E., R. N. Parthasarathy, and S. R. Gollahalli. “Combustion Characteristics of Bio-Fuels in Porous Media Burners.” Third ECI Conference on t Porous Media and Its Applications in Science and Engineering, Montecatini, Italy (20-25 June 2010). Proceedings of American Physical Society, No. 1254, Editor: Kambiz Vafai, pp.163-168. doi:10.1063/1.3453804.
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  • Dhamale, N., B. Goepfort, R. Parthasarathy, and S. R. Gollahalli. "Combustion Properties of Turbulent Canola Methyl Ester and Diesel Flames." 48th Aerospace Sciences Meeting, Orlando, Fl. (4-7 January 2010). Paper No. AIAA/2010/1354.

  • Erazo Jr., J. A., R. Parthasarathy, and S. Gollahalli. "Atomization and Combustion of Canola Methyl Ester Biofuel Spray." Fuel 89.12 (2010): 3735-741. SciVerse. doi: 10.1016/j/fuel2010.07.022.
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  • Habib, Z., R. Parthasarathy, and S. Gollahalli. "Performance and Emission Characteristics of Biofuel in a Small-Scale Gas Turbine Engine." Journal of Applied Energy 87 (2010): 1701-709. SciVerse. doi: 10.1016/j.apenergy.2009.10.024.
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  • Periasamy, C., and S. R. Gollahalli. "Numerical Modeling Of Evaporation Enhancement Of Aviation-Grade Kerosene Spray In Porous Media Combustors." Journal of Porous Media 13.8 (2010): 707-23. Journal of Porous Media. doi: 10.1615/JPorMedia.v13.i8.
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  • Love, N. D., R. N. Parthasarathy, and S. R. Gollahalli. "Rapid Characterization of Radiation and Pollutant Emissions of Biodiesel and Hydrocarbon Liquid Fuels." Journal of Energy Resources Technology 131.1 (March 2009): 012202-7. ASME Digital Library. doi: 10.1115/1.3068345.
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  • Love, N. D., R. N. Parthasarathy, and S. R. Gollahalli. "Effect of Iodine Number on NOx Formation in Laminar Flames of Oxygenated Biofuels." International Journal of Green Energy 6.4 (2009): 323-32. doi: 10.1080/15435070903106934

  • Sequera, A. J., R. N. Parthasarathy, and S. R. Gollahalli. “Effect of Fuel Injection Timing in the Combustion of Biofuels in a Diesel Engine." International Energy Conversion Engineering Conference, Denver, Colorado (August 2009).

  • Choudhuri, A. R., M. Subramanya, and S. R. Gollahalli. "Flame Extinction Limits of H2-CO Blends." Journal of Engineering for Gas Turbines and Power 130.031501-1 (May 2008).

  • Hariharan, P., C. Periasamy, and S. R. Gollahalli. "Effects of Elliptic Burner Geometry and Air Equivalence Remission Atio on the Nitric Oxide Emissions from Turbulent Hydrogen FlamesEffects of Elliptic Burner Geometry and Air Equivalence Remission Atio on the Nitric Oxide Emissions from Turbulent Hydrogen Flames." International Journal of Hydrogen Energy 32 (2007): 1095-102.

  • Periasamy, C., S. K. Sankara-Chinthamony, and S. R. Gollahalli. "Experimental Evaluation of Evaporation Enhancement with Porous Media in Liquid-Fueled Burners." Journal of Porous Media 10.2 (2007): 137-50. doi: 10.1615/JPorMedia.v10.i2.30.
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  • Aref, A., and S. R. Gollahalli. "Hydroxyl Radical Concentration Measurements in Non-premixed Hydrogen-Air Flames." Port Said Engineering Research Journal, Suez Canal University 10.2 (2006): 13-21.

  • Aref, A., and S. R. Gollahalli. "Planar Laser-Induced Fluorescence Imaging of OH and CH Radical Concentrations in Natural Gas-Air Diffusion Flames." Port Said Engineering Research Journal, Suez Canal University 10.2 (2006): 1-12.

  • Carrera, J., R. N. Parthasarathy, and S. R. Gollahalli. "Bubble Formation from a Free-standing Tube in Microgravity." Chemical Engineering Science 61.21 (2006): 7007-018. SciVerse. doi: 10.1016/j.ces.2006.07.021.
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  • Smith, T., C. Periasamy, B. Baird, and S. R. Gollahalli. "Trajectory and Characteristics of Buoyancy and Momentum Dominated Horizontal Jet Flames From Circular and Elliptic Burners." Journal of Energy Resources Technology 128.4 (2006): 300-10. ASME Digital Library. doi: 10.1115/1.2358145.
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  • Goh, S. F., and S. R. Gollahalli. "Sooting Characteristics of Propylene-Hydrogen Mixture Diffusion with Diluent Addition Near Smoke Point." Journal of Propulsion and Power 21.4 (July-August 2005).
Curriculum Vitae: