TFC LAB

Turbulence & Flow Control Lab

AERODYNAMICS - CFD - WIND ENGINEERING / ENERGY RESEARCH, ARTIFICIAL INTELLIGENCE

READ, APPLY, INNOVATE, WRITE, REPEAT

Patents  (Granted)

N. Kirthika, K. Madhumadhan, U.Lokesh, C.B.Maheswaran, S. Ramaswami, S. Nadaraja Pillai,  Vertical Access Wind Turbine, Design No. 343102 -001, Certificate of Registration of Design, The Patent Office, Government of India.

Patents  (Published)

S. Nadaraja Pillai, E. Karthikvel, P. Ganesh, AN APPARATUS FOR IMPROVING AERODYNAMIC EFFICIENCY, Indian patent, filed in the Patent Office, Government of India. Application No: 202341054719

Publications  (SCI Journals)

2023

Mano Sekar, S. Nadaraja Pillai, “Downstream characteristics of extended flat plate trailing edge on S809 wind turbine blade under various turbulent intensities” Aircraft Engineering and Aerospace Technology, Vol. 95 No. 10, pp. 1678-1693. https://doi.org/10.1108/AEAT-02-2023-0040 (Q3, IF - 1.478)


GAO Liang, J. Jegadeeshwaran, S. Ramaswami, S. B. M. Priya, S. Nadaraja Pillai, “Aerodynamic characteristics of wavy splitter plate on circular cylinder”, Volume 37, Number 5, November 2023 , pages 375-382, Wind and Structures, an International Journal DOI: https://doi.org/10.12989/was.2023.37.5.375 (accepted for publication) (Q2, IF = 1.729)


Mano Sekar, Amjad Ali Pasha, S. Nadaraja Pillai, “ Influence of trailing edge serration in the wake characteristics of S809 Airfoil”, Vol.37(2024), No.1, 15 -23, https://doi.org/10.12989/was.2023.37.1.015 (Q1, IF = 1.729)

C.B. Maheswaran, R. Gopal, V.K. Chandrasekar, S. Nadaraja Pillai, "Chaotic vibration characteristics of Vertical Axis Wind Turbine (VAWT) shaft system, Wind and Structures, Vol. 36, No.3 (2023), 215 - 220, https://doi.org/10.12989/was.2023.36.3.215 (Q1, IF = 1.729)

2022

Amjad Ali Pasha, Mustafa Mutiur Rahman, Wasim Jamshed, Khalid Ahmed Juhany, S. Nadaraja Pillai, "Buoyancy driven flow and slippage constraints influences on Casson hybridity nanofluid of Yamada-Ota and Xue type via rotating cone", Ain Shams Engineering Journal, 19 August 2022, 101934, ISSN 2090-4479, https://doi.org/10.1016/j.asej.2022.101934. (Q1), (IF - 4.79)


Livya, E. and Nadaraja Pillai, S. (2022), "Effect of turbulence intensity on aerodynamic characteristics of extended trailing edge airfoil", Aircraft Engineering and Aerospace Technology, Vol. ahead-of-print No. ahead-of-print.  https://doi.org/10.1108/AEAT-12-2021-0382   (Q3) (IF - 1.478), (Accepted for Publications)

V.S. Raatan, S. Ramaswami, S. Mano and S. Nadaraja Pillai, Effect of stall delay characteristics of symmetrical aerofoil using lateral circular ridges, Wind and Structures - an International Journal, Volume 34, Number 4, April 2022, pages 385-394. DOI: 10.12989/was.2022.34.4.385 (Q1) (IF - 1.729)

Mohammed Ameen Ahmed Qasem, Vincent C.O. van Oudenhoven, Amjad A. Pasha, S. Nadaraja Pillai, V. Mahendra Reddy, Usama Ahmed, Shaikh A. Razzak, Eid M. Al-Mutairi, Abdul Gani Abdul Jameel, A machine learning model for predicting threshold sooting index (TSI) of fuels containing alcohols and ethers, Fuel, Volume 322, 2022, 123941, ISSN 0016-2361, https://doi.org/10.1016/j.fuel.2022.123941. (https://www.sciencedirect.com/science/article/pii/S0016236122008006) (Q1) (IF - 8.035)

Kashif Irshad, Salem Algarni, Nazrul Islam, Shafiqur Rehman, Md. Hasan Zahir, Amjad Ali Pasha, S. Nadaraja Pillai, Parametric analysis and optimization of a novel photovoltaic trombe wall system with venetian blinds: Experimental and computational study, Case Studies in Thermal Engineering, 2022, 101958, ISSN 2214-157X, https://doi.org/10.1016/j.csite.2022.101958.,(Q1) (IF - 6.268)

P.S. Prem Kumar, S. Nadaraja Pillai, C. Senthil Kumar, (2022), "Study on oil-cooler location for a pusher type turbo prop aircraft using numerical simulation", Aircraft Engineering and Aerospace Technology, Vol. 94 No. 6, pp. 895-905. https://doi.org/10.1108/AEAT-08-2021-0228  (Q3) (IF - 1.478) 


2021

Livya Ethiraj and S. Nadaraja Pillai, Effect of trailing-edge modification over aerodynamic characteristics of NACA 0020 airfoil, Wind and Structures - an International Journal, Wind and Structures, Vol. 33, No. 6 (2021) 463-470, DOI: 10.12989/was.2021.33.6.463, (Q2) (IF - 2.47)

Sir Elkhatem, A.; Engin, S.N.; Pasha, A.A.; Rahman, M.M.; Nadaraja Pillai. S. Robust Control for Non-Minimum Phase Systems with Actuator Faults: Application to Aircraft Longitudinal Flight Control. Appl. Sci. 2021, 11, 11705. https://doi.org/10.3390/app112411705  (IF: 2.679)

Suresh, R and Gopal, R and Nadaraja Pillai, S. and Chandrasekar, V. K. Evidence of extreme events in wind-induced normal stress of the columns of low- and medium-rise building structures, EPL (Europhysics Letters), Volume 136, Number 1, October 2021, 10005 (IF: 1.958) 


Amjad A. Pasha, M. M. Abdulla, D. S. K. Reddy, S. Nadaraja Pillai, N. Islam, K. A. Juhany, V. Mahendra Reddy, Numerical Analysis to Evaluate the Effect of Wall Temperature on Skin Friction and Stanton Number for Turbulent Flows over a Flat Plate from Mach 2–8. Arab J Sci Eng (2021). https://doi.org/10.1007/s13369-021-06170-w  (IF:2.2), (Springer),

S. Nadaraja Pillai, Aakhash Sundaresan; R. Gopal; S. B. M Priya; Amjad A. Pasha; Abdul Zubar Hameed; Abdul Gani Abdul Jameel, V. Mahendra Reddy, Khalid A. Juhany  ., "Estimation of Chaotic surface pressure characteristics of ice accreted airfoils – A 0-1 test approach," in IEEE Access,  https://doi: 10.1109/ACCESS.2021.3103580 . (IF: 3.367) (Q1)

Amjad Ali Pasha, Meshal Nuwaym Al-Harbi, Surfarazhussain S. Halkarni, Nazrul Islam, D. Siva Krishna Reddy, S. Nadaraja Pillai, & Ufaith Qadiri. (2021). CFD study of Convective Heat Transfer of Water Flow Through Micro-Pipe with Mixed Constant Wall Temperature and Heat Flux Wall Boundary Conditions. CFD Letters, 13(7), 13–26. https://doi.org/10.37934/cfdl.13.7.1326 (Q3)

Qadiri, U., Pasha, A.A., Rahman, M.M., Raheem, M.A., Jameel, A.G.A., Nadaraja Pillai, S. (2021). Parametric investigation on single cylinder spark ignition engine fueled methanol blends; water-based micro emulsions and conventional gasoline. International Journal of Heat and Technology, Vol. 39, No. 3, pp.  919-924. https://doi.org/10.18280/ijht.390327 (Q3)

Mano, S.; Ajay Sriram, R.; Vinayagamurthy, G.; Nadaraja Pillai, S.;Pasha, A.A. Reddy, D.S.K.; Rahman, M.M. Effect of a Circular Slot on Hybrid Airship Aerodynamic Characteristics. Aerospace 2021, 8, 166. https://doi.org/10.3390/aerospace8060166 (Q2) (IF - 1.659)

Amjad Ali Pasha, Khalid A Juhany, S Nadaraja Pillai, One-Equation turbulence models applied to practical scramjet inlet, International Journal of Turbo and Jet Engines, De Gruyter | vol. 39, no. 2, 2022, pp. 241-249. https://doi.org/10.1515/tjj-2021-0013   (Q3) (IF - 1.082)

Arunvinthan, S.; Raatan, V.S.; Nadaraja Pillai, S.; Pasha, A.A.; Rahman, M.M.; Juhany, K.A. Aerodynamic Characteristics of Shark Scale‐Based Vortex Generators upon Symmetrical Airfoil. Energies 2021, 14, 1808.  https://doi.org/10.3390/en14071808 (Q3) (IF - 3.004)

Aakhash Sundaresan, S. Arunvinthan, A.A.Pasha, S. Nadaraja Pillai, "Effect of ice accretion on the aerodynamic characteristics of wind turbine blades" Wind and Structures - an International Journal, Wind and Structures, Vol. 32, No. 3 (2021) 205-217, https://doi.org/10.12989/was.2021.32.3.205  (Q2) (IF - 2.47)

2020

S. Mano, S. Arunvinthan, S. Nadaraja Pillai," Experimental Investigation of downstream wake characteristics of NACA0015 airfoil", Journal of Applied Science and Engineering, Journal of Applied Science and Engineering, Vol. 23, No 4, Page 603-609  https://doi.org/10.6180/jase.202012_23(4).0004 (Q3)

S. Arunvinthan, S Nadaraja Pillai, Shuyang Cao“Aerodynamic characteristics of variously modified Leading-Edge Protuberanced (LEP) wind turbine blades under various turbulent intensities”, Journal of Wind Engineering and Industrial Aerodynamics”, Vol - 202, July 2020, 104188 (2020); https://doi.org/10.1016/j.jweia.2020.104188 (Q1) (IF - 3.01) 

S. Arunvinthan, R. Gopal, V. K. Chandrasekar, and S Nadaraja Pillai, "Recurrence analysis of surface pressure characteristics over symmetrical aerofoil", Chaos 30, 013116 (2020); https://doi.org/10.1063/1.5121569 (Q1) (IF - 3.642) 

C Anbu Serene Raj, M Narasimhavaradhan, N. Vaishnavi,  S Arunvinthan, A Al Arjani, S Nadaraja Pillai,Aerodynamics of ducted re-entry vehicles, Chinese Journal of Aeronautics, Volume 33, Issue 7, 2020, ISSN 1000-9361, https://doi.org/10.1016/j.cja.2020.02.019. (Q1) (IF - 2.769) 

2019

S. Arunvinthan, R. Gopal, V. K. Chandrasekar, and  S. Nadaraja Pillai, Estimation of nonlinear surface pressure characteristics of aerofoil: A 0-1 test approach, AIP Advances 9, 055204 (2019); https://doi.org/10.1063/1.5102154 (Q3)  (IF - 1.579) 

N. I. Haroon Rashid, S. Nadaraja Pillai, S. Selvi Rajan, C. Senthil Kumar, Non-Gaussian Wind Pressure Characteristics of HAWT Tower System with and Without Rotor, Journal of Applied Fluid Mechanics, Vol. 12, No. 2, ISSN 1735-3572, 2019, pp 505 –514. (Q2) (IF – 1.405) 

S. ARUNVINTHAN, S. NADARAJA PILLAI, Aerodynamic characteristics of unsymmetrical aerofoil at various turbulence intensities, Chinese Journal of Aeronautics,Volume 32, Issue 11, 2019, Pages 2395-2407, ISSN 1000-9361, https://doi.org/10.1016/j.cja.2019.05.014. (http://www.sciencedirect.com/science/article/pii/S1000936119302481) (Q1) (IF - 2.769) 

N. Ganesh, S. Arunvinthan, S. Nadaraja Pillai, Effect of surface blowing on aerodynamic characteristics of tubercled straight wing, Chinese Journal of Aeronautics, 2019, ISSN 1000-9361, https://doi.org/10.1016/j.cja.2019.02.006. (Q1)  (IF - 2.769) 

2018

K. Kaushikh, S. Arunvinthan, S. Nadaraja Pillai, Aerodynamics and Aerothermodynamics of undulated re-entry vehicles, In Acta Astronautica, Volume 142, 2018, Pages 95-102, ISSN 0094-5765, https://doi.org/10.1016/j.actaastro.2017.10.024 . (Q1)  (IF - 2.482) 

2017

G. Balaji, S. Nadaraja Pillai and C. Senthil Kumar ‘Wind Tunnel Investigation of Downstream Wake Characteristics on Circular Cylinder with Various Taper Ratios’,  Journal of Applied Fluid Mechanics, Vol. 10, Special Issue, pp. 69-77, 2017 (IF – 0.918) 

Before 2016

Premkumar, P., Chakravarthy, S., Jayagopal, S., Nadaraja Pillai, S.,(2016). Investigation of Engine Oil-cooling Problem during Idle Conditions on Pusher Type Turbo Prop Aircraft.International Journal of Turbo & Jet-Engines, Volume 34, Issue 4, Pages 333–340, ISSN (Online) 2191-0332, ISSN (Print) 0334-0082, DOI: https://doi.org/10.1515/tjj-2016-0013. (IF - 0.863)

S. Nadaraja Pillai, Y Tamura, Generalized peak factor and its application to stationary random processes in wind engineering applications,  Journal of wind and Engineering Vol-6 , 1-10

S.Selvi Rajan, M Santhoshkumar, N Lakshmanan, S. Nadaraja Pillai, M Paramasivam,CFD analysis and wind tunnel experiment on a typical launch vehicle model, Journal of Applied Science and Engineering 12 (3), 223-229, http://jase.tku.edu.tw/articles/jase-200909-12-3-01.pdf

Publications (Scopus Journals)

(Last Five Years Only)

2023

E. Livya, R. Abishaveni, M.D. Ashika Deepthi, P. Ranjitha, S. Nadaraja Pillai, "Analysing the aerodynamic characteristics of eroded wind turbine blades", IOP Conference Series: Earth and Environmental Science, Volume 1161, Third International Conference on Sustainable Energy Solutions for a Better Tomorrow (SESBT 2022) 23rd-24th July 2022, Vellore Institute of Technology (VIT) Chennai, Tamilnadu, India,  1161 012015, DOI 10.1088/1755-1315/1161/1/012015

Prem Kumar, P.S., Surya Teja, V., Arunvinthan, S., Nadaraja Pillai, S. (2023). Analysis of Heat Transfer Coefficients and Pressure Drops in Surface Condenser with Different Baffle Spacings. In: Castillo, O., Bera, U.K., Jana, D.K. (eds) Applied Mathematics and Computational Intelligence. ICAMCI 2020. Springer Proceedings in Mathematics & Statistics, vol 413. Springer, Singapore. https://doi.org/10.1007/978-981-19-8194-4_2 ISBN 978-981-19-8193-7, 

2022

S. Arunvinthan, N.I. Haroon Rashid and S. Nadaraja Pillai, "Effect of turbulent inflow on the leading edge protuberanced (LEP) wing: A time-series approach, AIP Conference Proceedings 2520, 030001 (2022), ; https://doi.org/10.1063/5.0102943

Premkumar P. Selvarajan, S. Nadaraja Pillai and Senthilkumar Chidambaram, "Oil-cooler location optimization study of a pusher type turboprop aircraft using CFD simulation", AIAA AVIATION 2022 Forum, June 27-July 1, 2022, Chicago, IL & Virtual, https://doi.org/10.2514/6.2022-3226 

2021

Aluru V. Siva Charana Datta, G. Sudarshan, D. S. Pranav, S. Ramaswami & S. Nadaraja Pillai, "A CFD analysis on the effects of design modifications on flow characteristics in a directional control valve"In: Bhattacharyya, S., Verma, S., Harikrishnan, A.R. (eds) Fluid Mechanics and Fluid Power (Vol. 3). FMFP 2021. Lecture Notes in Mechanical Engineering. Springer, Singapore. https://doi.org/10.1007/978-981-19-6270-7_11

2020

S Mano, PS Premkumar, M Subhas, L Narashiman, S. Nadaraja Pillai, "Aerodynamic characteristics of advanced airship shape–A computational investigation ", AIP Conference Proceedings 2270 (1), 040016 , https://doi.org/10.1063/5.0019854

Vivek K., Ashok Kumar B., Dhileep K., Arunvinthan S., Nadaraja Pillai S. (2020) Surface Pressure Characteristics over Indian Train Engine. In: Voruganti H., Kumar K., Krishna P., Jin X. (eds) Advances in Applied Mechanical Engineering. Lecture Notes in Mechanical Engineering. Springer, Singapore, https://doi.org/10.1007/978-981-15-1201-8_9 

2019

Dhileep K., Arunvinthan S., Nadaraja Pillai S. (2019) Aerodynamic Characteristics of Semi-spiroid Winglets at Subsonic Speed. In: Chandrasekhar U., Yang LJ., Gowthaman S. (eds) Innovative Design, Analysis and Development Practices in Aerospace and Automotive Engineering (I-DAD 2018). Lecture Notes in Mechanical Engineering. Springer, Singapore, pp 217 -224, DOI: https://doi.org/10.1007/978-981-13-2718-6_20  

Livya E., Sai Anirudh R., Vignesh V., Prasannavenkatesh B., Nadaraja Pillai S. (2019) Experimental Analysis of Implementing Roughness on NACA 0018 Airfoil. In: Chandrasekhar U., Yang LJ., Gowthaman S. (eds) Innovative Design, Analysis and Development Practices in Aerospace and Automotive Engineering (I-DAD 2018). Lecture Notes in Mechanical Engineering. Springer, Singapore, pp 91 -96, DOI: https://doi.org/10.1007/978-981-13-2697-4_10  

Vinayagamurthy, G., K.M. Parammasivam, and S.Nadaraja Pillai. “Flutter Analysis of Wing, Booster Fin and Vertical Tail.” Applied Mechanics and Materials 110–116 (October 2011): 3500–3505. https://doi.org/10.4028/www.scientific.net/amm.110-116.3500 

Sureshkumar A., Nadaraja Pillai S., Manikandan P. (2012) Optimization of Rounded Spike on Hypersonic Forebody Reattachment. In: Sathiyamoorthy S., Caroline B., Jayanthi J. (eds) Emerging Trends in Science, Engineering and Technology. Lecture Notes in Mechanical Engineering. Springer, India 

Publications (Selected Publication in International Conferences)

Kirthika N , MadhuMadhan K , Lokesh U , S. Nadaraja Pillai, Aerodynamic Characteristics of grooved rotating circular cylinder, 35th Indian Engineering Congress,  December 18 - 20, 2020

C B Maheswaran, R Gopal,  S Nadaraja Pillai,  A vibrational test for chaos using 0-1 in a vertical axis wind turbine, 35th Indian Engineering Congress,  December 18 - 20, 2020

E. Livya, S. Nadaraja Pillai, 4 Activating Atmospheric Boundary Condition inside the Subsonic Wind Tunnel using Passive Turbulence Grid, 35th Indian Engineering Congress,  December 18 - 20, 2020

S. Nadaraja Pillai, R.Gopal, V.K.Chandrasekar, Arkadiuz Syta, G. Litak, On identifying flow over separation characteristics of aerofoil using cross recurrence quantication analysis, Chotic Modeling and simulation International Web Conference, 22 - 24, October 2020.

S. Mano, S. Arunvinthan, G. Vinayagamurthy, S. Nadaraja Pillai, “Experimental Investigation of Downstream Characteristics of Vertical Axis Wind Turbine Blade” 15th International Conference on Wind Engineering, Beijing, China, Sep 1-6. 2019. 

S.Arunvinthan , S. Nadaraja Pillai , Shuyang Cao, “Aerodynamic Characteristics of Leading-edge Protuberanced Wind Turbine Blades Under Various Turbulence Intensities”, 15th International Conference on Wind Engineering, Beijing, China, Sep 1-6. 2019. 

Aakhash Sundaresan, S. Arunvinthan, S. Nadaraja Pillai, ” Aerodynamic Effect of Turbulence Intensity on Ice Accreted NACA0015 Airfoil - an Experimental Study”, 15th International Conference on Wind Engineering, Beijing, China, Sep 1-6. 2019. 

 Karthick Dhileep, S. Arunvinthan , S. Nadaraja Pillai , Shuyang Cao, “Flow over Circular Cylinder with Stippling”, 15th International Conference on Wind Engineering, Beijing, China, Sep 1-6. 2019. 

Liviyam S. Nadaraja Pillai “Experimental analysis of implementing roughness on NACA 0018 airfoil”, Innovative Design, Analysis and Development Practices in Aerospace and Automotive Engineering (I-DAD 2018) 

Karthik Dhileep, S. Arunvinthan, S. Nadaraja Pillai, “Aerodynamic characteristics of Semi-spiroid winglets at subsonic speed”, Innovative Design, Analysis and Development Practices in Aerospace and Automotive Engineering (I-DAD 2018). 

G. Gokulanand, N. Subitsha, G. Vidhya, S. Arunvinthan, S. Nadaraja Pillai, “Experimental analysis of Aerodynamic characteristics of an unsymmetrical airfoil NACA 2415 in Ground Effect”, Eighth symposium on Applied Aerodynamics and Design of Aerospace Vehicles (SAROD), 29th November 2018 – 1st December 2018. 

Aakash Sundaresan, S. Arunvinthan, S. Nadaraja Pillai, “Experimental investigation of ice accretion effect on NACA 0015 airfoil”, Eighth symposium on Applied Aerodynamics and Design of Aerospace Vehicles (SAROD), 29th November 2018 – 1st December 2018. 

Karthick Dhileep, S. Arunvinthan, S. Nadaraja Pillai,  “Surface Pressure characteristics of circular cylinder with stippling – An experimental study”, Eighth symposium on Applied Aerodynamics and Design of Aerospace Vehicles (SAROD), 29th November 2018 – 1st December 2018. 

S. Arunvinthan, S. Nadaraja Pillai, “Experimental Investigation of Straight and Leading-edge Protuberanced wing at various Turbulence intensities”, Eighth symposium on Applied Aerodynamics and Design of Aerospace Vehicles (SAROD), 29th November 2018 – 1st December 2018. 

Jaeyong Chung, S.Nadaraja Pillai, Mohamed Elsharawy " Numerical simulation of Flow pattern on Statue structure", The Eighth National Conference on Wind Engineering, IIT (BHU) Varanasi, India, 16-17 Dec 2016. 

S.Nadaraja Pillai, Jaeyong Chung, V.K.Manhoharr "Wind-Induced damages on Buildings and structures during past decade in India ", The Eighth National Conference on Wind Engineering, IIT (BHU) Varanasi, India, 16-17 Dec 2016. 

M.Dhanam Koilraj, C.Anbu Serene Raj, R.Sivasankaran,  S.Arunvinthan, S.Nadaraja Pillai, " Influence of Twist on Leading-edge Undulated Wind Turbine Blade- An Aerodynamic Perspective", The Eighth National Conference on Wind Engineering, IIT (BHU) Varanasi, India, 16-17 Dec 2016. 

Aditya Lakshmi, E.D.Vaishnavi, N.Ashwathi, S.Arunvinthan, S.Nadaraja Pillai, " Aeroacoustic and Aerodynamic performance optimization through Leading-edge Undulations", The Eighth National Conference on Wind Engineering, IIT (BHU) Varanasi, India, 16-17 Dec 2016. 

S.Arunvinthan, S.Nadaraja Pillai, " Investigation of the underlying flow physics in Leading-edge undulated wind turbine blades", The Eighth National Conference on Wind Engineering, IIT (BHU) Varanasi, India, 16-17 Dec 2016. 

Saurabh Subramaniam, S.Arunvinthan, S.Nadaraja Pillai, "Effect of thickness-chord ratio on Bio-Inspired Leading-edge undulated Wing", Thirtieth National Convention of Aerospace Engineers and National Seminar on Aerospace Technology: Future Trends and Developments, Institution of Engineers (India), 25-26 Nov 2016. 

N.Ganesh, S.Arunvinthan, S.Nadaraja Pillai, "Numerical Investigation of the effect of the artificial Boundary-Layer tripping in Leading-edge Serrated Wing", Thirtieth National Convention of Aerospace Engineers and National Seminar on Aerospace Technology: Future Trends and Developments, Institution of Engineers (India), 25-26 Nov 2016. 

Srujana Sarvepalli, S.Arunvinthan, S.Nadaraja Pillai, "Numerical Investigation of Laminar Separation Bubble of Bio-Inspired Leading-edge Serrated Wing", Thirtieth National Convention of Aerospace Engineers and National Seminar on Aerospace Technology: Future Trends and Developments, Institution of Engineers (India), 25-26 Nov 2016. 

S.Arunvinthan, S.Nadaraja Pillai, " A computational Investigation of Stall alleviation using Leading-edge undulations", Thirtieth National Convention of Aerospace Engineers and National Seminar on Aerospace Technology: Future Trends and Developments, Institution of Engineers (India), 25-26 Nov 2016. 

V. Suresh, C. Senthil Kumar, S. Nadaraja Pillai, S. Arunvinthan, “Forebody effect on bluff body drag reduction at low Reynolds number”, International Journal of Applied Engineering Research, ISSN 0973-4562 Vol. 10 No.33 (2015), pp 27710 – 27717. 

Sundaravadivel, S. Nadaraja Pillai, C. Senthil Kumar, “Computational study on the influence of passive flow control on wind turbine blade aerodynamics”, International Journal of Applied Engineering Research, ISSN 0973-4562 Vol. 10 No.33 (2015), pp 26629 – 26634. 

N. Julie, S. Arunvinthan, S. Nadaraja Pillai, G. Anitha, “BOC variants for navigation system – A spectral analysis approach”, International Journal of Applied Engineering Research, ISSN 0973-4562 Vol. 10 No.33 (2015), pp 26617 – 26622. 

N. I. Haroon Rashid, S. Nadaraja Pillai, S. Arunvinthan, C. Senthil Kumar, “Pressure characteristics of HAWT due to aerodynamic blade – tower interference”, International Journal of Applied Engineering Research, ISSN 0973-4562 Vol. 10 No.33 (2015), pp 27058 – 27062. 

S. Dinesh, S. Nadaraja Pillai, S. Arunvinthan, S. Mohanamurugan, “Solar chimney power technology – Veering effect and simulation technologies”, International Journal of Applied Engineering Research, ISSN 0973-4562 Vol. 10 No.33 (2015), pp 26611 – 26616. 

G Balaji, C. Senthil Kumar, S. Nadaraja Pillai, R. Senthil Kumar, “Aerodynamic performance enhancement of blunt body using aerodisk”, International Journal of Applied Engineering Research, ISSN 0973-4562 Vol. 10 No.33 (2015), pp 27063 – 27067. 

N. I. Haroon Rashid, K. Vijayaraja, S. Nadaraja Pillai, C. Senthil Kumar, “Peak Wind Pressure Characteristics of HAWT Tower Systems”, National Conference on Wind Tunnel Testing – 04, 19-20 March 2015. Defence Research Development Laboratory (DRDL),  pp 33 – 35. 

T. Subash, S. Nadaraja Pillai, “Basic Fibres Reinforced Green Composites for Aircraft Indoor Structures Applications: A Review”, National Conference on Recent Trends and Developments in Sustainable Green Technologies, March 24th – 25th 2015, Published in Journal of Chemical and Pharmaceutical Sciences, ISSN 0974 – 2115. 

M.A. Mohammed Jaasim, S. Nadaraja Pillai, K.M. Parammasivam, “Enhanced power production of wind turbine by aerodynamic braking” 8th Asia-Pacific Conference on Wind Engineering (APCWE-VIII), 10-14 December, 2013. ISBN: 978-981-07-8011-1 

Dhiliban, P. Meena, P.S. Narasimhan, M. Vivek, S. Nadaraja Pillai, K.M. Paramasivam, “Aerodynamic performance of rear roughness aerofoils”, 8th Asia-Pacific Conference on Wind Engineering (APCWE-VIII), 10-14 December, 2013. ISBN: 978-981-07-8011-1 

T.A. Sundaravadivel, S. Nadaraja Pillai, C. Senthilkumar, “Experimental analysis on a wind turbine model with a 3-D span wise projection for passive flow control” 8th Asia-Pacific Conference on Wind Engineering (APCWE-VIII), 10-14 December, 2013. ISBN: 978-981-07-8011-1 

T.A. Sundaravadivel, S. Nadaraja Pillai, C. Senthilkumar, “Influence of Boundary Layer control on wind turbine blade aerodynamic characteristics - Part I - Computational Study” 8th Asia-Pacific Conference on Wind Engineering (APCWE-VIII), 10-14 December, 2013. ISBN: 978-981-07-8011-1 

Haroon Rashid, S. Nadaraja Pillai, C.Senthil Kumar, “Effect of pitch angle on blade-tower interference on HAWT”, 8th Asia-Pacific Conference on Wind Engineering (APCWE-VIII), 10-14 December, 2013. ISBN: 978-981-07-8011-1 

M.A. Mohammed Jaasim, S. Nadaraja Pillai, K.M. Parammasivam, “Aerodynamic breaking of wind turbine blade by chord-wise spacing, ” 6th National Conference on Wind Engineering (6th NCWE), 14 – 15, Dec 2012.  

V. Suresh, R.Arun Prasad, S. Nadaraja Pillai, C. Senthil Kumar, “Influence of surface roughness on drag and flow field of D-shape model” 6th National Conference on Wind Engineering (6th NCWE), 14 – 15, Dec 2012.  

M.Vignesh Kumar, N. I. Haroon Rashid, S.Nadaraja Pillai, K.M.Parammasivam, “Drag characteristics of circular cylinder with various rough nesses for higher Reynolds number” 6th National Conference on Wind Engineering (6th NCWE), 14 – 15, Dec 2012.  

Suresh Kumar, N. I. Haroon Rashid,  P. Manikandan, S. Nadaraja Pillai, “Influence of Aero disk diameter on the hypersonic forebody”, Emerging Trends in Aerospace Technologies (ETREAT 2012), 11th June 2012. 

P. Manikandan, T. A. Sundaravadivel, S. Nadaraja Pillai, C. Senthil Kumar, “Influence of Boundary Layer Fence Location in Wind Turbine Blades”, International Workshop and Conference on Renewable Energy and Climate Change-Exploring Opportunities for Sustainable Development – IWCRECC 2012., 05th ~ 07th April 2012. 

M.Vignesh Kumar, P.Manikandan , S.Nadaraja Pillai, Y. Tamura, “Drag characteristics of circular cylinder at very high Reynolds number”, International Workshop and Conference on Renewable Energy and Climate Change-Exploring Opportunities for Sustainable Development – IWCRECC 2012., 05th ~ 07th April 2012. 

P. Manikandan, T.A.Sundaravadivel, S. Nadaraja Pillai, C. Senthil Kumar, “Improving aerodynamic efficiency of wind turbine blades using fence”, Recent Advances in Chemical and Environmental Engineering 2012, NIT Rourkela, Orissa, 20-21 Jan 2012. (Best Paper Award) 

J.Varathan, P.S. Prem Kumar,  S.Nadaraja Pillai, “Improving power  performance in horizontal axis wind turbine using  bladelets” The National conference on Recent trends in Alternate energy, June-9-10, 2011, NIT, Calicut, INDIA. Paper published in the proceedings of the Conference. 

G.Vasanth Sankar, G.Mahendra Perumal, S.Nadaraja Pillai, “Numerical Simulation of Upstream Flow Due to operating Wind Turbine at Various Pitch Angles” the National conference on Recent trends in Alternate energy, June-9-10, 2011, NIT, Calicut, INDIA. Paper published in the proceedings of the Conference. 

G.Vasanth Sankar, G.Mahendra Perumal, S.Nadaraja Pillai, “Numerical Simulation of Upstream Flow Due To Operating Wind Turbine at Various Wind Speed” the National conference on Recent research in Mechanical engineering, May 5, 2011 Athiparasakthi engineering college, Melmaruvathur, INDIA. Paper published in the proceedings of the Conference. 

G.Vinayagamurthy, Dr. K.M.Parammasivam, S.Nadaraja Pillai, “Flutter Analysis of Wing, Booster fin and Vertical Tail” International Conference on Mechanical and Aerospace Engineering (CMAE 2011), March 2011, New Delhi, India. 

Y.Tamura, H.Kikuchi,  K.Hibi, S.Nadaraja Pillai,” Pressure distributions and flow fields providing extreme aerodynamic forces” VI Bluff Body Aerodynamics and Application (VI BBAA), Milano, Italy. (Key note Lecture), 20th July ~ 24th July 2008. 

S.Nadaraja Pillai, Y.Tamura, “ Generalized Peak Factor and its Application to Stationary Random Process in Wind Engineering Applications”, Proceedings of the fourth National conference on Wind Engineering – 2007, SERC, Chennai, 30th Oct ~ 1st Nov 2007, pp 477-484.  

H.Kikuchi, Y.Tamura, Gideon van .Zijl, , S.Nadaraja Pillai, Lisa Alberti, “Wind pressures on cylindrical models with serrated roughness and flow field” The 2nd WERC International Symposium on Architectural Wind Engineering, Atsugi, Japan Nov  5-6, 2007, pp 81-90 (reprinted).  

S.Nadaraja Pillai, Lisa Alberti, “Wind pressures on cylindrical models with serrated roughness and flow fields” 12th International conference on Wind Engineering, Cairns, Australia, July 2007, pp 1703 – 1710. 

S.Nadaraja Pillai, “Quasi-static Peak Normal Stress and Peak Factor” The 2nd WERC International Symposium on Architectural Wind Engineering, Atsugi, Japan Nov  5-6, 2007, pp 81-90 (reprinted) H.Kikuchi, Y.Tamura, Gideon van .Zijl, K.Hibi,  

S.Nadaraja Pillai, Y.Tamura, “Quasi-static Peak Normal Stress and Peak Factor” 12th International conference on Wind Engineering, Cairns, Australia, July 2007, pp 519 – 527.Y.Tamura,  

S..Nadaraja Pillai, Y.Tamura, H.Kikuchi, K.Hibi, Y.Masuyama, “Effects of wind direction on wind load combination for low- and medium-rise buildings” 12th International conference on Wind Engineering, Cairns, Australia. July 2007, pp 2535 – 2542. 

S..Nadaraja Pillai, Y.Tamura, H.Kikuchi, K.Hibi, Y.Masuyama, “Joint probability characteristics of wind force components in medium- and high-rise buildings” The 56th Nat. Cong. of Theoretical & Applied Mechanics 2007, Tokyo, Japan, pp 95-96, Mar 2007.  

S.Nadaraja Pillai, Y.Tamura, “Wind load combination and Normal stress peak factor – a probabilistic approach”, Joint workshop of wind effects on structures and buildings, Hong Kong Polytechnic University, Hong Kong, Dec 11th 2006. 

H.Kikuchi, Y.Tamura, K.Hibi, S.Nadaraja Pillai, Lisa Alberti, “Wind pressures on cylindrical models with serrated roughness and flow” Proceedings of National Symposium on Wind Engineering, Japan, Vol. 19 (2006) pp.373-376.  

S..Nadaraja Pillai, Y.Tamura, “Probabilistic analysis of wind load combination for low- and medium-rise buildings” Wind Effects News, Wind Engineering Research Centre, Tokyo Polytechnic University, Japan, Vol.13 Dec 2006. ISBN 4-902713-20-9 

S.Nadaraja Pillai, Y.Tamura, “Peak maxima distribution and its derived peak factor for wind load combination,” International conference on multivariate statistical methods in 21st century: The legacy of Prof. S.N.Roy, Kolkata, India, pp 28. Dec 2006. 

T.A.Sundaravadivel, S.Nadaraja Pillai, M.Santhosh Kumar, K.M.mParammasivam,”CFD analysis of Water tank models”, 18th NCAE,Institute of Engineers (India), Kolkata, November 2004. 

Nadaraja Pillai.S, Santhosh Kumar.M, Parammasivam.K.M, Jayaraman.K,” Aerodynamic Analysis of Flat and curve shaped Hypersonic Forebodies at Low speeds “9th Aerospace Division International Conference on Engineering, construction and Operation in Challenging Environment, ASCE, Houston, U.S.A, March 7-10, 2004. ISBN (print): 978-0-7844-0722-6 

Kumar M.S,  Paramasivam. M,  Nadaraja Pillai.S, Jayaraman .K,” Integration of WindTunnel Results on a Space Grid Roof for Predicting it is Modal Response”, 11th International Conference on Wind Engineering (ICWE-2003), 2-5 June 2003, Lubbock, Texas, USA . Presented the paper and published in the proceedings of the conference. 

 Paramasivam .M, Santhosh Kumar . M, Nadaraja Pillai.S, Jayaraman .K,” Wind  Tunnel Measurements on Wind Effects on Space Frames with Simulation of Terrain”, 11th International Conference on Wind Engineering (ICWE-2003), 2-5 June 2003, Lubbock, Texas, USA Published in the proceedings of the conference.

Nadaraja Pillai.S Jayaraman K, Paramasivam M, , Kumar M S,”The Characteristics of the Low Speed Wind Tunnel”, the International Seminar on  Indian Aviation –Challenges & Perspective”, 10-11 January 2003, Kolkata, INDIA, Paper published in the proceedings of the Conference  

Nadaraja Pillai.S Jayaraman K, Paramasivam M, , Kumar M S,”Flutter Analysis of Aircraft Wing and its Effect at Wing fuselage  Interjections the International Seminar on  Indian Aviation –Challenges & Perspective”, 10-11 January 2003, Kolkata, INDIA Paper published in the proceedings of the Conference  

Nadaraja Pillai.S Jayaraman K, Paramasivam M, , Kumar M S, “ Computational and Experimental studies on Aerodynamics Characteristics of Hypersonic blunt nosed model at low speeds “, the International Seminar on  Indian Aviation –Challenges & Perspective”, 10-11 January 2003, Kolkata, INDIA. Paper published in the proceedings of the Conference