Technische Universität München

In 1988, Raman I. Sujith graduated with a Bachelor of Technology in aerospace engineering from the Institute of Technology Madras (India) with first rank. He completed his Master of Science (1990) and doctorate (1994) with Prof. Ben Zinn at the Georgia Institute of Technology (Atlanta, USA). After graduation, he worked as a postdoctoral Fellow at the Georgia Institute of Technology until he joined the Institute of Technology Madras in 1995 as a lecturer. Since 2006, Prof. Sujith has been working as a full professor. As a Humboldt Fellow, Prof. Sujith worked at DLR Goettingen (2000 to 2001) and at TUM (2004). He is a Fellow of the Indian National Academy of Engineering.

Elected 2007 Fellow of the Indian National Academy of Engineering (INAE)

2005-2006 Swarnajayanti Fellowship of DST

2002 Young Engineer Award of the Indian National Academy of Engineering

2000-2001, 2004 Alexander von Humboldt Fellowship

1994 Top graduate student in the College of Engineering, Georgia Institute of Technology

1988 HAL prize, for First Rank in B. Tech at IIT Madras

More publications are available here.

1. S. MARIAPPAN and R. I. SUJITH (2010) Thermoacoustic Instability in Solid Rocket Motor – Non-normality and Nonlinear Instabilities, Journal of Fluid Mechanics, in press.

2. J. GEORGE and R. I. SUJITH (2009) “Emergence of Acoustic Waves from Vorticity Fluctuations: Impact of Non-Normality”, Physical review E, 80, 046321: 1-6.

3. B. TULSYAN, K. BALASUBRAMANIAN and R. I. SUJITH (2009) “Revisiting a Model for Combustion Instability Involving Vortex Shedding”, Combustion Science and Technology 181 (3), 457-482.

4. S. NAGARAJA, K. KEDIA AND R. I. SUJITH (2009) “Characterizing Energy Growth During Thermoacoustic Instabilities: Eigenvalues or Singular Values?”, Proceedings of the Combustion Institute; 32 (2), 2009, 2933-2940.

5. K. BALASUBRAMANIAN and R. I. SUJITH (2008) “Non-normality and Nonlinearity in Combustion-Acoustic Interaction in Diffusion Flames”, Journal of Fluid Mechanics, 594, 29-57.

6. K. BALASUBRAMANIAN and R. I. SUJITH (2008) “Nonlinear Response of Diffusion Flames to Uniform Velocity Disturbances” Combustion Science and Technology, 180 (3), 418-436.

7. K. BALASUBRAMANIAN and R. I. SUJITH (2008) “Thermoacoustic Instability in a Rijke tube: Non-normality and Nonlinearity”, Physics of Fluids 20 (1), Article number 044103.

8. K. KEDIA, S. NAGARAJA AND R. I. SUJITH (2008) “Impact of Linear Coupling on Thermoacoustic Instabilities”, Combustion Science and Technology, 180 (9), 1588 -1612.

9. P. BALA SUBRAHMANYAM, R. I. SUJITH and M. RAMAKRISHNA (2003) “Determination of Unsteady Heat Release Distribution from Acoustic Pressure Measurements: A Reformulation of the Inverse Problem”, Journal of Acoustical Society of America, 113, 686-696.

10. P. REDDY, R. I. SUJITH and S. R. CHAKRAVARTHY (2006) “Swirler Flow Field Characteristics in a Sudden Expansion Combustor Geometry”, Journal of Propulsion and Power, 22, 800-808.

Sujith is primarily interested in the study of thermoacoustic instabilities. He is currently working on investigating the non-normal and nonlinear dynamics of thermoacoustic systems. Sujith showed that, transient growth that results from the non-normal nature of thermoacoustic systems, in combination with nonlinear effects, can cause combustion systems found to be stable by classical modal analysis, to become unstable. This is a break with the established paradigm for thermoacoustic instability. He is working on establishing an alternative framework for thermoacoustic stability analysis.

Sujith works on both theoretical and experimental research. He works on optical diagnostics of flow and combustion.