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Dr Varun Thangamani PhD, MS (by Research), B.Tech

Assistant Professor, Aeronautics and Astronautics Lecturer

Dr Varun Thangamani's photo

Dr Varun Thangamani's undergraduate degree was in Mechanical Engineering from Kerala University, India. He later earned an MS research degree in Aerospace Engineering from the Indian Institute of Technology Madras.

During this period, he studied the role of microjets in stabilising cavity oscillations in a supersonic flow. Upon completion, he pursued his PhD at Cranfield University, the UK on the effects of scaling on cavity oscillations and their control mechanisms. After completion of his PhD in 2014, he worked as a Project Development Engineer with Frigesco Ltd, UK for two years. He was part of the team that developed a much acclaimed and patented defrost technology which reduces the total energy consumption of commercial freezers by up to 20 per cent. He is currently focusing on researching novel energy harvesting methods from flow-induced vibrations

Research interests

Experimental aerodynamics, Multi-phase heat transfer and Energy-saving technologies.

PhD position available:

A fully funded PhD position, to work under the following project, is available immediately. Interested candidates, holding at least a 2:1 (or 60%) master’s degree in Aerospace or Mechanical Engineering, should send their CVs to 


Project detail: 

Energy harvesting from Vortex-Induced Vibrations:

Energy harvesting from ambience for powering sensors has become a focal research area, and recent research indicates that extracting fluid flow energy from Vortex-Induced Vibrations (VIV) is a promising candidate for Energy Harvesting Devices (EHDs). In its basic form, a VIV-based EHD consists of flow past a bluff body, and the resulting vortex shedding is used to vibrate a mechanical oscillator that houses a transducer. The objectives of the proposed research are to quantify the energy harnessed from certain bluff body flow oscillations using a piezoelectric transducer in different configurations and to establish the effects of Reynolds number, body geometry, piezoelectric material and load resistance on the power generated. The approach will be both experimental as well as computational.

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Journal Articles:

1. Saddington, A. J., Thangamani, V. and Knowles, K.

"Comparison of Passive Control Techniques for a Transonic Flow over a Cavity”, Journal of Aircraft Vol 53 (5), April 2016, pp 1439-1447. DOI:10.2514/1.C033365I

2. Saddington, A.J., Knowles, K. and Thangamani, V.

“Scale Effects on the Performance of Sawtooth Spoilers in Transonic Rectangular Cavity Flow”, Experiments in Fluids, 57 (1), January 2016, pp. 1-12. DOI: 10.1007/s00348-015-2088-2

3. Thangamani, V., Knowles, K. and Saddington, A. J.

"The Effects of Scaling on High Subsonic Cavity Flow Oscillations and Control”, Journal of Aircraft Vol 51 (2), 3 April 2014, pp 424-433.  DOI:10.2514/1.C032032

4. Thangamani, V., and Kurian, J.

“Control of Cavity Oscillations in a Supersonic Flow by Microjet Injection”, Journal of Aircraft, Vol 50 (4), July 2013, pp 1305-1309. DOI: 10.2514/1.C032003

Conference Proceedings:

1. Davies, T., Campbell, R. and Thangamani, V. (2014)

"A Novel Low-Energy Defrost Process for the Frozen Food Chain ", Proceedings of the Institute of Refrigeration, 3 April 2014, London,UK

2. Davies, T., Campbell, R. and Thangamani, V. (2014)

"A Low Carbon Defrost System ", 15th International Refrigeration and Air Conditioning Conference, 14-17 July 2014, Purdue, USA.

3. Campbell, R., Davies, T. and Thangamani, V. (2014)

"Reduction in Energy Consumption of a Walk-in Freezer by Using a Flash-Defrost System ", Third IIR Conference on Sustainability and the Cold Chain, 23-25 June 2014, London,UK.

4. Thangamani, V., Knowles, K. and Saddington, A. J. (2013)

"An Investigation of Passive Control Methods for a Large Scale Cavity Model in High Subsonic Flow", Proceedings of the 19th AIAA/CEAS Aeroacoustics Conference, 27-29 May 2013, Berlin, Germany.

5. Thangamani, V., Knowles, K. and Saddington, A. J. (2012)

"The Effects of Scaling on Flow Inside a Cavity at High Subsonic Mach number", Proceedings of the RAeS Applied Aerodynamics Conference: Modelling and Simulation in the Aerodynamic Design Process - Current Practice and Future Prospects, 17-19 July 2012, Bristol, UK.

6. Thangamani, V., Knowles, K. and Saddington, A. J. (2012)

"The Effects Of Scaling on High Subsonic Cavity Flow Oscillations and Control", Proceedings of the 18th AIAA/CEAS Aeroacoustics Conference, Vol. 2012-2052, 4-6 June 2012, Colorado Springs, USA.

7. Thangamani, V., and Kurian, J.

“Control of Cavity Oscillations in a Supersonic Flow by Cavity Floor Microjet Injection”, Proceedings of the 37th National and 4th International Conference on Fluid Mechanics and Fluid Power, 16-18 December 2010, Indian Institute of Technology Madras, Chennai, India.


1. Patent No. GB1507920.5 (8 May 2015) - “Cool Gas Defrost Circuit Using Heat Storage Material” (Patent Pending)

Inventors: Campbell, R., Davies,T. and Thangamani, V


1. Active Control of Cavity Oscillations in a Supersonic Flow by Microjet Injection – MS (by Research) Thesis by Varun Thangamani

Published: 2008.  Institution: Indian Institute of Technology Madras (India)

2. The Effects of Scaling on High Subsonic Cavity Flow and Control – PhD Thesis by Varun Thangamani

Published: 2014.  Institution: Cranfield University (UK)


  • SESA2022 Aerodynamics
  • SESA2025 Mechanics of Flight
  • FEEG2001 Systems Design and Computing
Dr Varun Thangamani
University of Southampton Malaysia Campus

No. 3, Persiaran Canselor 1,
Kota Ilmu Educity @ Iskandar,
79200, Nusajaya, Johor Malaysia

Room Number : 193 USMC/4001

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