Publications

20.  Mariappan, S., Nath, K and Karniadakis, Em. G, Learning thermoacoustic interactions in a combustor using a physics-informed neural network. under review with Journal of Fluid Mechanics, 2024

19. Chandrasekaran, K. S., Mariappan, S., Das. D. and Singh, A. Development of a new class of temperature-sensitive paints operating in the green spectrum of light for aerodynamic flow applications, under revision in Measurement Science and Technology, 2022

18. Mohan, B. and Mariappan, S. Self-excited intermittent thermoacoustic fluctuations in an annular combustor exhibiting flame transient phenomena: Physical mechanisms and modeling. Physics of Fluids, 35, 114108, 2023, doi:10.1063/5.0172080

17. Britto, A. and Mariappan, S. Self-excited vortex-acoustic lock-in in a bluff body combustor: theory and experiment. Journal of Fluid Mechanics, 975, 2023, doi:10.1017/jfm.2023.845

16. Mariappan, S. Stochastic dynamics of vortex-acoustic lock-in: stochastic bifurcation and resonance. Journal of Fluid Mechanics, 941, 2022, doi:10.1017/jfm.2022.303

15. Britto, A. and Mariappan, S. Lock-in phenomenon of vortex shedding in flows excited with two commensurate frequencies: a theoretical investigation pertaining to combustion instability. Journal of Fluid Mechanics, 925, 2021, doi:10.1017/jfm.2021.624

14. Mohan, B. and Mariappan, S. Nonlinear stability analysis of intrinsic flame-acoustic coupling in an one-dimensional longitudinal combustor. Combustion and Flame, 215:309-323, 2020, doi:10.1016/j.combustflame.2020.02.011

13. Vishwakarma, M. and Mariappan, S. Parametric study of intrinsic thermoacoustic feedback driven instability in a partially premixed combustor. Journal of Energy and Environmental Sustainability, 9:24-31, 2020

12. Singh, G. and Mariappan, S. Experimental investigation on the route to vortex-acoustic lock-in phenomenon in bluff body stabilized combustors. Combustion Science and Technology, 1-30 2019, doi:10.1080/00102202.2019.1700961

11. Britto, A. and Mariappan, S. Lock-in phenomenon of vortex shedding in oscillatory flows: an analytical investigation pertaining to combustors. Journal of Fluid Mechanics, 872:115–146, 2019, doi:10.1017/jfm.2016.458

10. Murugesan, M., Singaravelu, B., Kushwaha, A. K. and Mariappan, S. Onset of flame-intrinsic thermoacoustic instabilities in partially-premixed turbulent combustors. Int’l Journal of Spray and Combustion dynamics, 10(3):171–184, 2018, doi:10.1177/1756827718758511

9. Singaravelu, B. and Mariappan, S. Criterion for vortex lock-on in combustors with backward facing step. J. Physics: Conference Series, 822:012001, 2017, doi:10.1088/1742-6596/822/1/012001

8. Mohan, B. and Mariappan, S. Influence of non-perfect impedance boundary on the bistable region in thermoacoustic interactions. J. Physics: Conference Series, 822:012006, 2017, doi:10.1088/1742-6596/822/1/012006

7. Singaravelu, B. and Mariappan, S. Stability analysis of thermoacoustic interactions in vortex shedding combustors using Poincaré map. Journal of Fluid Mechanics, 801:597–622, 2016, doi:10.1017/jfm.2016.4588

6. Mariappan, S., Sujith, R. I. and Schmid, P. J. Experimental investigation of non-normality of thermoacoustic interaction in an electrically heated Rijke tube. Int’l Journal of Spray and Combustion dynamics,7(4):315-352, 2015, doi:10.1260/1756-8277.7.4.315

5. Lang, W., Gardner, A. D., Mariappan, S. and Raffel, M. Rotor blade boundary transition measured by temperature sensitive paint, thermal imaging and image derotation. Experiments in Fluids, 56(118):1–14, 2015, doi:10.1007/s00348-015-1988-5

4. Mariappan, S., Gardner, A. D., Richter, K. and Raffel, M. Analysis of dynamic stall using dynamic mode decomposition technique. AIAA Journal, 52(11):2427–2439, 2014, doi:10.2514/1.J052858

3. Mariappan, S. and Sujith, R. I. Modeling nonlinear thermoacoustic instability in an electrically heated Rijke tube. Journal of Fluid Mechanics, 680:511–533, 2011, doi:10.1017/jfm.2011.176

2. Mariappan, S. and Sujith, R. I. Thermoacoustic instability in a solid rocket motor: non-normality and nonlinear instabilities. Journal of Fluid Mechanics, 653:1–33, 2010, doi:10.1017/S0022112010000133

1. Subramanian, P., Mariappan, S., Sujith, R. I. and Wahi, P. Bifurcation analysis of thermoacoustic instability in a horizontal Rijke tube. Int’l Journal of Spray and Combustion dynamics, 2:325–356, 2010

1. Singaravelu, B., Mariappan, S. and Saha, A. Theoretical formulation for the investigation of acoustic and entropy-driven combustion instabilities in gas turbine engines. Combustion for Power Generation and Transportation: Technology, Challenges and Prospects, 169–196, 2017, Springer, Singapore,doi:10.1007/978-981-10-3785-6 9.

1. Mariappan, S., Singh, A., Dammati, S. S., Bharadwaj, K. K. and Jadhav, S. D. Temperature sensitive paint for the usage in green spectrum of light. Indian patent 324934, 2016

18. Mohan, B. and Mariappan, S. Onset of thermoacoustic oscillations in an annular combustor with flames stabilized by circular discs. Fluid Mechanics and Fluid Power, IIT Roorkee, December 14 – 16, 2022

17. Vishwakarma, M., Mohan, B. and Mariappan, S. Experimental investigation on passive control of combustion instability using different geometrical configurations. Fluid Mechanics and Fluid Power, IIT Roorkee, December 14 – 16, 2022

16. Singh, K. C., Mariappan, S., Das, D. and Singh, A., Detection of laminar to turbulent transition location using a new class of temperature sensitive paint. Symposium on Applied Aerodynamics and Design of Aerospace Vehicle (SAROD), Hyderabad – India, December 15 – 17, 2022

15. Srikanth, R., Murali, K. and Mariappan, S. Investigation of vortex acoustic lock-in in turbulent flows using colored noise. 22nd National Propulsion Conference, Mumbai – India, December 19 – 20, 2022

14. Krishna Chaitanya, V. and Mariappan, S. Application of physics informed neural network to solve the acoustic wave equation: a first step to study thermoacoustic interactions. 13th Asia-Pacific Conference on Combustion, Abu Dhabi – UAE, December 4 – 9, 2021

13. Britto, A. B. and Mariappan, S. Discrete dynamical framework to study lock-in phenomenon of vortex shedding in combustors due to coupling with the acoustic field. 13th Asia-Pacific Conference on Combustion, Abu Dhabi – UAE, December 4 – 9, 2021

12. Kumar, A., Sai Kiran, G., Ramkumar J. and Mariappan, S. Feature extraction based thermoacoustic instability detection in premixed combustion chamber using machine learning models. 13th Asia-Pacific Conference on Combustion, Abu Dhabi – UAE, December 4 – 9, 2021

11. Mohan, B., Kumar, R. and Mariappan, S. An analytical investigation of system modes in a resonator with R1 = 0 and R2 = −1. Symposium of Thermoacoustics: Industry meets Academia, Munich, September 6 – 10, 2021

10. Britto, A. B. and Mariappan, S. Understanding the route to lock-in phenomenon in vortex shedding combustors. 26th International Congress on Sound and Vibration, Montreal, July 7 – 11, 2019

9. Vishwakarma, M. and Mariappan, S. Parametric study of intrinsic thermoacoustic feedback driven instability in a partially premixed combustor. Proceedings of the 7th International and 45th National Conference on Fluid Mechanics and Fluid Power, India, Dec 10 – 12, 2018

8. Singh, G., Singaravelu, B. and Mariappan, S. Phase space dynamics of thermoacoustic interactions during vortex-acoustic lock-on. 24th International Congress on Sound and Vibration, UK, July 23 – 27, 2017

7. Kushwaha, A. K. and Mariappan, S. Active control of combustion instabilities in constant and reduced area exit combustor. 1st National Aerospace Propulsion Conference, India, Mar 15 – 17, 2017

6. Mohan, B. and Mariappan, S. Effects of nonlinear generalization of King’s law in analyzing thermoacoustic instability of a Rijke tube. 1st National Aerospace Propulsion Conference, India, Mar 15 – 17, 2017

5. Juvva, S. D. K, Burela, R. S., Mariappan, S. and Kushari, A. Design philosophy of a laboratory scaled pragmatic gas turbine combustor. 1st National Aerospace Propulsion Conference, India, Mar 15 – 17, 2017

4. Verma, R. and Mariappan, S. Comparison of unsteady heat release rate measurement by chemiluminescence and two microphone technique. ASME Gas Turbine India, GTINDIA2015-1249, Hyderabad, India, Dec 1 – 3, 2015

3. Juvva, S. D. K, Mariappan, S. and Kushari, A. Suppression of Combustion Noise in a Gas Turbine Combustor. ASME Gas Turbine India, GTINDIA2015-1339, Hyderabad, India, Dec 1 – 3, 2015

2. Juvva, S. D. K, Mariappan, S. and Kushari, A. Open Loop Active control of combustion noise in gas turbine combustor. ASME Gas Turbine India, GTINDIA2015-1340, Hyderabad, India, Dec 1 – 3, 2015

1. Mariappan, S., Schmid, P. J. and Sujith, R. I. Subcritical transition to thermoacoustic instability in a horizontal Rijke tube: non-normal and nonlinear effects. 13th Asian Congress of Fluid Mechanics, Dhaka, Bangladesh, December 17 – 21, 2010

14. Mohan, B. and Mariappan, S. Nonlinear characterization of azimuthal combustion instability exhibiting flame transient phenomena. InterNoise, paper number-368, Glasglow, Scotland, August 21 – 24, 2022

13. Vishwakarma, M., Mariappan, S. and Heckl, M. Experimental investigation of intrinsic thermoacoustic instabilities in a combustion chamber terminated by a variable aperture. Proceedings of the 23rd International Congress on Acoustics, Aachen, Germany, September 9 – 13, 2019

12. Mohan, B. and Mariappan, S. Azimuthal combustion instability: characterization of laboratory scale annular test rig. Asian Congress on Gas Turbines, paper number-7, Morioka, Japan, August 22 – 24, 2018

11. Singaravelu, B. and Mariappan, S. Role of entropy waves in the stability of thermoacoustic interactions. Asian Congress on Gas Turbines, paper number-31, Indian Institute of Technology Bombay, India, November14 – 16, 2016

10. Juvva, S. D. K, Mariappan, S. and Kushari, A. Effect of quenching airflow on combustion noise in gas turbine combustors. Asian Congress on Gas Turbines, paper number-51, Indian Institute of Technology Bombay, India, November 14 – 16, 2016

9. Juvva, S. D. K, Mariappan, S. and Kushari, A. Spray dynamics in a swirling jet air-blast atomizer. 18th Annual Conference on Liquid Atomization and Spray Systems - Asia, Chennai, India, November 6 – 9, 2016

8. Mariappan, S., Gardner, A. D., Richter, K. and Raffel, M. Analysis of dynamic stall using dynamic mode decomposition technique. 31st AIAA Applied Aerodynamic Conference, AIAA 2013 – 3040, San Diego, California, June 24 – 27, 2013

7. Mariappan, S., and Sujith, R. I. Brief review of modern tools for the analysis of thermoacoustic instability in Rijke type burners. AIA-DAGA Conference on Acoustics, Merano, Italy, March 18 – 21, 2013

6. Mariappan, S., Sujith, R. I. and Schmid, P. J. Non-normality of thermoacoustic interactions: an experimental investigation. 47th AIAA/ASME/SAE/ASEE Joint Propulsion Conference, AIAA 2011 – 5555, San Diego, California, July 31 – August 3, 2011

5. Mariappan, S., Schmid, P. J. and Sujith, R. I. Role of transient growth in subcritical transition to thermoacoustic instability in a horizontal Rijke tube. 16th AIAA/CEAS Aeroacoustics Conference, AIAA 2010 – 3857, Stockholm, June 7 – 9, 2010

4. Mariappan, S., Sujith, R. I. and Schmid, P. J. Non-normal and nonlinear dynamics of thermoacoustic instability in a horizontal Rijke tube. n3l - Int’l Summer School and Workshop on Non-Normal and Nonlinear Effects in Aero- and Thermoacoustics, Munich, May 17 – 21, 2010

3. Subramanian, P., Mariappan, S., Sujith, R. I. and Wahi, P. Application of numerical continuation to bifurcation analysis of Rijke tube. n3l - Int’l Summer School and Workshop on Non-Normal and Nonlinear Effects in Aero- and Thermoacoustics, Munich, May 17 – 21, 2010

2. Mariappan, S. and Sujith, R. I. Modeling nonlinear thermoacoustic instability in an electrically heated Rijke tube. 48th AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition, AIAA 2010 – 25, Orlando, Florida, January 4 – 7, 2010

1. Mariappan, S. and Sujith, R. I. Thermoacoustic instability in a solid rocket motor: non-normality and nonlinear instabilities. 48th AIAA Aero-space Sciences Meeting including the New Horizons Forum and Aerospace Exposition, AIAA 2010 – 1517, Orlando, Florida, January 4 – 7, 2010