Ravikiran Bompelly Assistant Professor Department of Mechanical Engineering

Dr. Ravikiran Bompelly is an Assistant Professor in the Mechanical Engineering Department at Mahindra École Centrale College of Engineering. Dr. Ravikiran did his Ph.D, in the Department of Aerospace Engineering from Georgira Institute of Technology. Prior to joining MEC, he worked as a Graduate Teaching Assistant at Georgia Institute of Technology.

  • Education
    • Aug 2012: Ph.D. Georgia Institute of Technology, Department of Aerospace Engineering Dissertation: Lean Blowout and its Robust Sensing in Swirl Combustors Advisor: Prof. Jerry Seitzman
    • Aug 2008: MS Georgia Institute of Technology, Department of Aerospace Engineering
    • May 2006: BTech & MTech Indian Institute of Technology, Madras, Chennai, India, Department of Aerospace Engineering Thesis: Response of Laminar Diffusion Flames Subjected to Acoustic Excitation; Advisor: Prof. S. R. Chakravarthy
  • Research

    Jan 2006 - Aug 2012: Georgia Institute of Technology, Graduate Research Assistant Advisor: Prof. Jerry Seitzman, Co-advisor: Prof. Tim Lieuwen

    • Worked in collaboration with NASA Glenn Research Center on the project "Detection and Control of Instabilities and Blowout for Low Emission Combustors".
    • Developed methods for robust detection of Lean Blowout (LBO) proximity sensing in swirl stabilized combustors using optical and acoustic sensors.
    • Investigated LBO margin sensing in a liquid-fueled Lean Direct Injection (LDI) aero engine type combustor operating at an elevated pressure and inlet temperature.
    • Investigated LBO margin sensing in a premixed gas-fueled combustor in the presence of combustion dynamics having equivalence ratio oscillations and flame acoustic interactions instability mechanisms.
    • Modeling of acoustic reflections due to impedance discontinuities inside a combustor for explaining the limitations of using acoustic signals for LBO precursor detection.
    • Developed a stochastic model for LBO precursor event occurrences and an analysis for a maximum allowed transient rates leading to LBO.
    • Modeling and control of a high bypass ratio turbofan engine during rapid deceleration transients using Numerical Propulsion System Simulation (NPSS).
    • Developed a novel control approach for faster engine decelerations based on LBO margin sensing.
    • Examined LBO margin sensing with tunable diode laser absorption of H2O vapor in combustion products Indian.

    June 2005 - May 2006: Institute of Technology, Madras, Chennai, India

    • Investigated response of laminar diffusion flames subjected to harmonic acoustic excitation employing high-speed chemiluminescence imaging and Schlieren.
    • Assisted in performing Acetone PLIF imaging in a non-premixed backward facing step combustor under unsteady operation.
  • Awards
    • All India 8th rank in the entrance test (GATE-2004) conducted throughout India for graduate-level engineering programs
    • Ranked in the top 1% of the students appeared for undergraduate admission test (IIT JEE2001) to IITs
    • Merit-cum-Means scholarship awarded by IIT Madras
    • Pratibha scholarship by the state of Andhra Pradesh, India for excellent academic achievement
  • Publications
    1. Bompelly, R., Seitzman, J., "Lean Blowout Proximity Sensing and Control During Rapid Deceleration Transients in Turbine Engines" in preparation for submission to Journal of Engineering for Gas Turbines and Power.
    2. Bompelly, R., Seitzman, J., "Lean Blowout Sensing Under Combustion Dynamics" in preparation for submission to Journal of Engineering for Gas Turbines and Power.
    3. Bompelly, R., Seitzman, J., 2011, "Robust Lean Blowout Sensing for Turbine Engine Combustors" ASME Turbo Expo 2011, Paper GT2011-46702, Vancouver, CA. (peer reviewed)
    4. Bompelly, R., Seitzman, J., 2011, "Static Stability Margin Sensing in an LDI Turbine Engine Combustor at Elevated Pressure" 49th AIAA Aerospace Sciences Meeting and Exhibit, Paper AIAA 2011-514, Orlando, FL.
    5. Bompelly, R., Periagaram, K., Lieuwen, T., Seitzman, J., 2010, "Static Stability Margin Sensing in a Lean Direct Injection (LDI) Turbine Engine Combustor" 48th AIAA Aerospace Sciences Meeting and Exhibit, Paper AIAA 2010- 0193, Orlando, FL
    6. Bompelly, R., Lieuwen, T., Seitzman, J., 2009, "Lean-Blowout and its Sensing in the Presence of Combustion Dynamics in a Premixed Swirl Combustor" 47th AIAA Aerospace Sciences Meeting and Exhibit, Paper AIAA 2009 982, Orlando, FL.
  • Experience

    Work Experience:

    Jan 2014 - July 2018: GE Aviation, Lead Engineer-Combustion.

    • Setup a combustion lab from scratch with $1 M funding having PIV, Acetone PLIF andPDPA setups to characterize flow field, fuel-air mixing, and sprays in advanced gas turbine premixes.
    • Proposed and secured internal funding of about $150 K so far to test various premixers for LM6000 and LM9000 aero-derivative engines.
    • Designed a dual-fuel premixer with substantially lower NOx emissions in liquid operation with improved durability for LM6000PF+ aero-derivative gas turbines.
    • Developed a novel CFD model for NOx emission predictions in DLE combustors that predicts emissions more accurately
    • Analyzed flow field, temperature distribution, flame characteristics and emissions in gas turbine combustors with RANS and LES reacting flow simulations.
    • Sep 2012-Feb 2013: TAO Sustainable Power Solutions, FL Combustion Engineer.
    • Performed CFD simulations of a 5 MW class gas turbine engine combustor sector.
    • Developed an engine performance prediction model with Numerical Propulsion System Simulation (NPSS).
    • May 2004-Aug2004: Gas Turbine Research Establishment (GTRE), Undergraduate Intern.
    • Test data analysis for variable area convergent-divergent nozzle performance.

    Teaching Experience:

    • Aug 2006 - Dec 2007: Georgia Institute of Technology, Atlanta, GA, Graduate Teaching Assistant.
    • Supervised, instructed and graded students in undergraduate fluid dynamics lab
    • Setting up lab experiments and troubleshooting
    • July 2004 - May 2005: Indian Institute of Technology, Madras, Chennai, India, Teaching Assistant
    • Helped undergraduate students with programming assignments and evaluated performance in Introduction to Computational Engineering course
  • Others

    Presentations:

    1. Seitzman, J., Lieuwen, T., Crawford, J., Bompelly, R., "Detection and Control of Instabilities and Blowoff for Low Emissions Combustors" Fundamental Aeronautics Program Technical Conference, March 2012, Cleveland, OH.
    2. Seitzman, J., Lieuwen, T., Crawford, J., Bompelly, R., "Detection and Control of Instabilities and Blowoff for Low Emission Combustors" NASA GRC Propulsion Controls and Diagnostics (PCD) Workshop, 2009, Cleveland, OH.
    3. Seitzman, J., Lieuwen, T., Crawford, J., Bompelly, R., "Detection and Control of Static and Dynamic Combustor Instability" Fundamental Aeronautics Program Annual Meeting, Oct 2008, Atlanta, GA.

    Patents:

    1. Ravi K. Bompelly, " Cavitation Bubbles Generation in Fuel Lines using High Intensity Focused Ultrasound to Lower Dynamic Pressure Oscillations" Applied for US Patent
    2. Ravi K. Bompelly, "Fuel Supply Line Pressure Oscillations Reduction through Positive Displacement Hydraulic Motor Modules" Applied for US Patent