Conferences / Oral- Poster presentations

1. P. P. Shevkar, R. Vishnu, S. K. Mohanan, M. Mathur, B. A. Puthenveettil, “Strain Rate Signatures of Plumes in Rayleigh Bénard Convection”, 73rd Annual Meeting of the APS Division of Fluid Dynamics, 22 – 24 November, 2020.

2. R. Vishnu, A. Sameen, “Nonlinear dynamics of axial vortex flow under unstable thermal gradients”, Conference on Nonlinear Systems and Dynamics (CNSD), Indian Institute of Technology Kanpur, India, 12 – 15 December 2019.

3. R. Vishnu, Manjul Sharma, A. Sameen, “Heat Transfer Characteristics of Lid Rotating Rayleigh Bénard Convection”, 7th International & 45th National Fluid Mechanics and Fluid Power Conference (FMFP), Indian Institute of Technology Bombay, Mumbai, India, 10 – 12 December 2018.

4. R. Vishnu, Manjul Sharma, A. Sameen, “Effect of temperature gradients on axial vortex breakdown”, 71st Annual Meeting of the APS Division of Fluid Dynamics, Atlanta, USA, 18 – 20 November, 2018.

5. R. Vishnu, Manjul Sharma, A. Sameen, “Bifurcation analysis of axial vortices under unstable thermal gradients”, poster presented at Conference on Nonlinear Systems and Dynamics (CNSD), Jawaharlal Nehru University, New Delhi, India, 11 – 14 October 2018.

6. R. Vishnu, A. Sameen, “Mechanism of axial vortex breakdown in a lid rotating Rayleigh Bénard convection”, poster presented at CISM, International Centre for Mechanical Sciences, Udine, Italy, 25 – 29 June 2018.

7. R. Vishnu, A. Sameen, “Mechanism of axial vortex breakdown in a lid rotating Rayleigh Bénard convection”, International conference on Rayleigh Benard Turbulence, University of Twente, Enschede, The Netherlands, 14-18 May 2018.

8. A. Sameen , R. Vishnu,, “Heat transfer and scaling laws in Rayleigh Benard convection system with a rotating lid.”, International conference on Rayleigh Benard Turbulence, University of Twente, Enschede, The Netherlands, 14-18 May 2018.

9. R. Vishnu, A. Sameen, poster presented at a workshop “Rotating Convection: from the Lab to the Stars”, held in Lorentz Center, Leiden, The Netherlands, 28 May – 1 June 2018.

10. R. Vishnu, Manjul Sharma, A. Sameen, “DNS of lid rotating Rayleigh Benard convection”, Turbulent Mixing and Beyond(TMB), Sixth International Conference, Tenth Anniversary Program, The Abdus Salam International Centre for Theoretical Physics (ICTP), Italy, 14-18 August 2017.

11 R. Vishnu, Manjul Sharma, A. Sameen, “Study on effect of lid rotation on convective heat transfer in Rayleigh Benard convection”, 6th Asian Symposium on Computational Heat Transfer and Fluid Flow, Indian Institute of Technology Madras (IITM), India, 10-13 December 2017.

12. R. Vishnu, A. Sameen, “Mechanism of axial vortex breakdown in Lid rotating Rayleigh Benard convection”, Poster session : ICTS – Turbulence from Angstroms to light years, International Centre for Theoretical Sciences (ICTS), Bengaluru, India, January 2018.

13. R. Vishnu, A. Sameen, “Mechanism of axial vortex breakdown in Lid rotating Rayleigh Benard convection”, 2 minutes Flash Talk: ICTS Turbulence meeting, ICTS – Turbulence from Angstroms to light years, International Centre for Theoretical Sciences (ICTS), Bengaluru, India, January 2018.

14. Manjul Sharma, R. Vishnu, A. Sameen, “Bifurcation Characteristics of Flow Inside a Cylinder With Rotating Lid”, 6th Asian Symposium on Computational Heat Transfer and Fluid Flow, Indian Institute of Technology Madras (IITM), India, 10 – 13 December 2017.

15. A. Sameen, R. Vishnu, Manjul Sharma, , “Axial vortices in lid rotating Rayleigh-Benard convection”, Summer school and discussion meeting on Buoyancy driven flows, International Centre for Theoretical Sciences (ICTS), Bengaluru, India, June 2017.

16. Baburaj. A. P., Vipin K., R. Vishnu, Sanal M., A. Sameen, “On separating plumes from boundary layers in turbulent convection”, Summer school and discussion meeting on Buoyancy driven flows, International Centre for Theoretical Sciences (ICTS), Bengaluru, India June 2017.

17. S. A. Pawar, R. Vishnu, M. Vadivukkarasan, M. V. Panchagnula, R. I. Sujith, “Intermittency of Route to Combustion Instability in a Laboratory Spray Combustor”, GT2015-42919, ASME Turbo Expo, Montreal, Canada, 2015.

18. Mukherjee N., Heckl Maria, Bigongiari A., R. Vishnu., Pawar Samadhan, Sujith R.I., “Nonlinear Dynamics of a laminar V-Flame in a combustor”, The 22nd International Conference on Sound and Vibration, Florence, Italy, 12-16 July 2015.

19. R. Vishnu, R. I. Sujith & Preeti Aghalayam, “Investigation of Flame Dynamics in a V Flame Combustor during Combustion Instability”, GTINDIA2014-8345, ASME 2014 Gas Turbine India Conference, New Delhi, 2014.

20. R. Vishnu, R. I. Sujith & Preeti Aghalayam, Talk on “Nonlinear flame dynamics of a ducted V flame“, Workshop on Experimental Methods in Thermoacoustics, organized by TANGO (Thermo-acoustic and Aero-acoustic Nonlinearities in Green combustors with Orifice structures) of Marie Curie Network and NCCRD, Indian Institute of Technology Madras (IITM), India, 2014.

21. R. Vishnu, R. I. Sujith & Preeti Aghalayam, “Experimental study of patterns in flame dynamics during different dynamical state”, Poster Presentation, Dynamical Days Asia Pacific 08, Indian Institute of Technology Madras (IITM), India, 2014.

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