DESIGNATION

Chief Research Scientist, Dept. of Aerospace Engg., IISc, Bangalore Dept of Aerospace Engg., IISc Bangalore

CURRENT RESEARCH INTEREST

Combustion; Heat Transfer; Fluid Dynamics (Experimental and Computational); Biomass Gasification; Renewable Energy; Advanced CFD Simulations, Instrumentation; Numerical Modelling (Analysis and Simulation);

CONTACT
PERSONAL HOME PAGE
SELECTED PUBLICATIONS

About 120 Research Publications (80 in International Journals and Conferences and 40 National Conferences); 14 Patents; 8 Internal Technical (Departmental) Reports.

 

1.     Afroz Javed, N.K.S. Rajan, Debasis Chakraborty, Effect of side confining walls on the growth rate of compressible mixing layers, Computers & Fluids 86 (2013) 500–509.

2.     S. Varunkumar, N. K. S. Rajan, H. S. Mukunda - Single Particle and Packed Bed Combustion in Modern Gasifier Stoves - Density Effects, Combustion Science and Technology (CST), 183: pp 1147–1163, October, 2011.

3.     Anil N., Rajan N. K. S. and Deshpande S. M. - Modified Kinetic Flux Vector Splitting (M-KFVS) method for compressible flows. Computers and Fluids, vol. 48, no. 1, pp. 137-149, 2011.

4.     Aditya P Kulkarni and Rajan N K S, Development of a Cost Effective and Reliable Flame-Out Protection Unit for Combustion Devices, Journal of Instrument Society of India, IISN:0970-9983, Vol 41 N1, pp 16-19, March, 2011.

5.     S. Varunkumar, N. K. S. Rajan, H. S. Mukunda - Experimental and Computational Studies on a Gasifier Based Stove, Energy Conversion and Management, Vol 53 (2011) pp 135–141, 2012.

6.     S Varunkumar, N K S Rajan and H S Mukunda - Single particle and packed bed combustion in modern gasifier stoves -density effects. Combustion Science and Technology, 183(11):1147-1163, 2011.

7.     Afroz Javed, NKS Rajan and Debasis Chakraborty - Behaviour of Turbulent Prandtl / Schmidt Number in Compressible Mixing Layer” under review in Journal of Propulsion and Power.

8.     Afroz Javed, P.J. Paul, NKS Rajan and Debasis Chakraborty - "Exploration of supersonic confined Mixing Layer – Effect of dissimilar gases at different temperatures", under review in Journal of Aerospace Engineering.

9.     BijuKumar K S, P Balachandran, N K S Rajan, P J Paul, Role of Hydrogen Injection Temperature on the Combustion Instability of Cryogenic Rocket Engines”, Journal of Propulsion and Power, October, 2011.

10.   S. Dasappa, P. J. Paul, N. K. S. Rajan, H. S. Mukunda, G. Sridhar, H. V. Sridhar - Biomass gasification technology – a route to meet energy needs; Current Science; Vol. 87, No. 7, ; pp 908 – 916, 2004.

11.   G. Sridhar, H. V. Sridhar,  S. Dasappa,  P. J. Paul,  N. K. S. Rajan and H. S. Mukunda - Development of Producer Gas Engines, Journal of Automobile Engineering, Part D, Proc. Instn. Mech Engrs, Vol. 219, pp 423-438, 2005.

12.   G. S. Sheshagiri, N. K. S. Rajan and H. S. Mukunda, CGPL, assessment of Biomass resource and its power potential using remote sensing data for Karnataka state and the nation in general, MGRIRED Journal Vol-1 Issue No. 1, March-2007.

13.   Konark Arora, N. K. S. Rajan and S. M. Deshpande, Weighted Least Squares Kinetic Upwind Method (WLSKUM) for computation of flow through blade passage with Kinetic Periodic Boundary Condition (KPBC), Computational Fluid Dynamics Journal, Vol 16, No. 3:31, 2008, pp: 300-319.

14.   Anil N., Rajan N. K. S. and Deshpande S. M. Optimal Control of Numerical Dissipation in M-KFVS Method for Compressible Flows, Computational Fluid Dynamics Journal, Vol. 18, no. 1, pp. 139-153, 2009.

15.   H. S. Mukunda, S. Dasappa, P. J. Paul, N. K. S. Rajan, Mahesh Yagnaraman, D. Ravi Kumar, Mukunda Deogaonkar - Gasifier stoves- Science, technology and field Outreach, Current Science, Vol. 98, No. 5, 10 March, 2010.

16.   S. Varunkumar, N. K. S. Rajan - A Study of Mixing and Combustion with Multiple Transverse Oxidizer Jets and a Single Fuel Jet in Cross Flow, Proceedings International Conference & Exhibition, ICEAE 2009, IISc-Bangalore, May 18–22, 2009.

17.   G. S. Sheshagiri, N. K. S. Rajan, S. Dasappa, P. J. Paul,  Agro Residue Mapping for India, 17th European Biomass Conference, Hamburg, Germany, 29 June –July 3, 2009.

18.   Ananda Theertha, Santhosh, P. S. Kulkarni, N. K. S. Rajan, S. Vasantha Sastry - Preliminary Numerical Investigations of Viscous Flows Over Wing of a Transport Aircraft, 12th AeSI CFD Conference, August 11-12, 2010.

19.   BijuKumar. K. S, Mathew George, V. Narayanan, P. Balachandran, N. K. S. Rajan, P. J. Paul, Numerical Simulation of High Frequency Combustion Instability in Cryogenic Engines, National Conference on Expanding Frontiers in Propulsion Technology (ASET 2011), June 17-18, 2011. (Awarded as Best Paper of the Conference)

20.   Aditya P Kulkarni and Rajan N K S, A Precision High Speed AC Power Monitoring Device for Power Regulation and Control, International Conference on Circuits and Systems, WCECS 2011 (World Congress on Engineering and Computer Science 2011), Univ of Berkeley, ISBN: 978-988-19251-7-6, ISSN: 2078-0958, Vol II, pp 748-752, October 19-21, 2011.

21.   Konark Arora, N. K. S. Rajan and S. M. Deshpande, On the Order of Accuracy of Gridfree Methods using Defect Correction with Inner Iterations, 7^th ACFD Conference, November 26-29, 2007.

22.   Konark Arora, N. K. S. Rajan and S. M. Deshpande, Kinetic Least Squares Meshless Method using Eigendirections, 4^th International Workshop on Meshfree Methods for Partial Differential Equations, Bonn, Germany, September 17-20, 2007.

23.   Anil N., Rajan N. K. S., Omesh Reshi and Deshpande S. M. Adjoint based optimal control of dissipation in kinetic schemes. In Proceedings of the 7^th Asian Computational Fluid Dynamics Conference (ACFD), Bangalore, India, Nov 26-30, 2007.

24.   Anil N., Rajan N. K. S., Omesh Reshi and Deshpande S. M. M-KFVS method combined with optimal control of dissipation. In Proceedings of the Institute for Computational Fluid Dynamics (ICFD) Conference on Numerical Methods for Fluid Dynamics, Reading, UK, March 26-29, 2007.

25.   BijuKumar. K. S, P.Balachandran, P. J. Paul, N. K. S. Rajan – Numerical Modeling of Combustion Process in a LOX-GH₂ Cryogenic Engine, Proceedings of International Conference and XX National Conference on IC Engines and Combustion (ICONICE-07), December 6-9, 2007.

26.   Anil N., Rajan N. K. S., Omesh Reshi and Deshpande S. M., A low dissipative discrete adjoint m-KFVS method, Proceedings of the 5^th International Conference on Computational Fluid Dynamics Conference (ICCFD), Seoul, Korea, July 7-11, 2008.

27.   Konark Arora, N.K.S. Rajan and S.M. Deshpande,On the Robustness and Accuracy of Least Squares Kinetic Upwind Method (LSKUM), 12^th Asian Congress of Fluid Mechanics (ACFM), Daejeon, Korea, August 18-21, 2008.

28.   H. V. Sridhar, N. K. S. Rajan, S. M. Shashidhara and K. Ramakrishnan, Characterization of Turbocharger Compressor for Engines with Producer Gas as Fuel, International Conference Pondicherry, January, 2009. (Awarded as Best Paper of the Conference)

29.   H. V. Sridhar, G. Sridhar, S. Dasappa, N. K. S. Rajan, P. J. Paul, H. S. Mukunda, Field Experience of IISc Gasification Systems, Proceeding of the Seminar on Biomass Gasifiers, Rubber Board, Kottayam, 2003.

30.   H. V. Sridhar, G. Sridhar, S. Dasappa, N. K. S. Rajan, P. J. Paul, H. S. Mukunda, Experience on use of biomass gasifiers in crumb rubber industries, Proceedings of the National Conference on Advances in Mechanical Engineering, Shimoga, Karnataka; February 12-14, 2004.

31.   G. Sridhar, S. Dasappa, H. V. Sridhar, P. J. Paul and N. K. S. Rajan, Gaseous Emissions Using Producer Gas Fuel in Reciprocating Engines, paper no. 2005-01-1732, SAE centenary conference held at Detroit, April 2005.

32.   N. K. S. Rajan, Dr. P. G. Tewari and T. R. Anil, An Approach for Designing of Producer Gas Carburetor for Application in Biomass based Power Generation Plants, NATCON Mechanical Engineering, 2005.

33.   H. V. Sridhar, G. Sridhar, S. Dasappa, P. J. Paul, N. K. S. Rajan, K Ramakrishnan, Adaptation and Performance Evaluation of Stationary SI Engines for Producer Gas Applications, ICAC 2005, pp. 485 – 489, June 13-16, 2005.

34.   Konark Arora, N. K. S. Rajan and S. M. Deshpande, Weighted Least Squares Kinetic Upwind Method (WLSKUM) using Eigenvector Basis, 8^th Annual CFD Symposium'', organized by CFD Division of AeSI, Bangalore, August 11-13, 2005.

35.   Anil N., Rajan N. K. S. and Deshpande S. M. Modified KFVS (m-KFVS) method with velocity dependent dissipation control function, Proceedings of the 8^th AeSI CFD Symposium, August 11-13, 2005.

36.   G. Sridhar, H. V. Sridhar, S. Dasappa, P. J. Paul, D. N. Subbukrishna and N. K. S. Rajan, Sudarshan Kumar And H. S. Mukunda   - Green Electricity from Biomass Fuelled Producer Gas Engine, Proceedings of 14th European Biomass Conference and Exhibition, 17-21 October, 2005.

37.   Konark Arora, N. K. S. Rajan and S. M. Deshpande, Weighted Least Squares Kinetic Upwind Method (WLSKUM) for computation of flow through blade passage with Kinetic Periodic Boundary Condition (KPBC), SAROD-2005, December 7 -9, 2005.

38.   M. A. Sriram, N. K. S. Rajan and P. S. Kulkarni. Computational Analysis of Flow through a Multiple Nozzle Driven Laser Cavity and Diffuser, Proceedings of Fourth ICCFD 2006, Belgium, pp 759-764, July 10-14, 2006.

39.   G. S. Sheshagiri, M. Dhinasekar,  D. R. Anantha Deshpande, N. K. S. Rajan  -  A Study on Spatial Distribution of Biomass Resources Using RSD, Map India, New Delhi, 2006 

40.   D. N. Subbukrishna, S. Dasappa, P. J. Paul and N. K. S. Rajan  - Hydrogen Sulfide removal from biogas by ISET process, Proceedings Of 14th European Biomass Conference and Exhinition, Biomass for energy, Industry and climate Protection, Map India, New Delhi, 2006 

41.   Konark Arora, N. K. S. Rajan and S. M. Deshpande, Application of Weighted Least Squares Kinetic Upwind Method using Eigendirections (WLSKUM-ED) to 3-D Flows, 9^th Annual CFD Symposium, AeSI, August 11-12, 2006.

42.   M. A. Sriram, N. K. S. Rajan, P. S. Kulkarni, “Complex Flow Analysis through a Multiple Nozzle Driven Laser Cavity”, Symposium on Applied Aerodynamics and Design of Aerospace Vehicle (SAROD-2007) November 22-23, 2007.

43.   S. Dasappa, G. Shridhar, H. V. Shridhar, N. K. S. Rajan, P. J. Paul and A. Upasani - Producer Gas Engine - Proponent of clean energy technology. 15th European Biomass Conference and Exhibition, May 7-11,2007.

44.   D. N. Subbukrishna, K. C. Suresh, P. J. Paul, S. Dasappa and N. K. S. Rajan - Precipitated Silica from Rice husk ash by IPSIT Process. 15th European Biomass Conference and Exhibition, May 7-11, 2007.

45.   G. Sridhar, S. Dasappa, H. V. Sridhar, P. J. Paul and N. K. S. Rajan - Green Electricity ~ A Case Study of a Grid Linked Independent Power Producer. 15th European Biomass Conference and Exhibition, 7-11 May 2007

EDUCATION PROFILE

Ph.D. in Faculty of Engineering (Aerospace Engg.), IISc (1990)
B.E. in Mechanical Engg., Univ. of Mysore (1979), I Class

PROFESSIONAL PROFILE

AWARDS

The following group awards have been are received where I am one of the prime persons cited.

1.     FICCI (Federation of Indian Chambers of Commerce & Industry) Annual Award 2004-2005, in recognition of Research in Science and Technology.

The award was in recognition of our group in spearheading the development of biomass combustion and gasification for several years, with dedication.  The citation continues to add that “The open-top re-burn, downdraft gasification system, developed by the society is a significant contribution to modern technology in the field of renewable energy.”  The award was given away by the Prime Minister of India.

2.     CII (Confederation of Indian Industry) – National Award for Excellence in Energy Management 2007 in recognition of Innovative Energy Saving Product.

The award was tagged to the collaborative work of Cummins and ABETS had in providing a new product line of gas engines for producer gas to the market, a first of its kind.

3.     Nina Saxena Excellence in Technology Award, 2011 – hosted by IIT, Kharagpur.

The award is considered prestigious in the wake of the nominations included all areas of technologies.

4.     AREAS Foundation Day Awards for excellent performance in R&D on renewable energy - August 2015 (2nd of three recognized Institutions – Award organized by MNRE)

AFFILIATIONS

• Development of technologies in renewable energy and licenced it for entrepreneurs for commercialization that is currently saving a millions of litres of fossil fuel.
• Have been on the board of studies of many engineering colleges to advice on the curriculum of their college.
• Has been a member of trustees of a charitable institution Chidambarashram, Gubbi that is supporting poor children for their education and get them exposed to Vedic culture.

PROJECTS

Recently (a decade) undertaken Projects with my role as PI:

Sponsored (Grant-in-Aid) R&D Projects:

List of Students

Research:

18 PhD (10 completed);

5 MSc (Engg) (2 completed);

Academic Projects: More than 150 ME/MTech;

Several batches of B.E. (dissertation projects for their degree)