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Dr. Dinesh Bhagavatula

Assistant Professor
Department of Chemical Engineering & Technology
Phone No(s): 542-716-5197
Email: dinesh.che@iitbhu.ac.in
Area of Interest: Patter formation due to interfacial instabilities with technological applications, resonance phenomenon, Microfluidics, interfacial instabilities in soft-gels
                    Vist my Website

 

 

 

  • Pattern formation in compliant materials

  • Resonance phenomena

  • Interfacial instabilities in multiphase flows in microfluidic channels

  • Multiphase flows in thin films

 

  • B. Dinesh, T. Corbin and R. Narayanan, Thin-film Rayleigh-Taylor instability in the presence of a deep periodic corrugated wall, Journal of Fluid Mechanics, Volume 931, Issue R5, 27 October 2021 (https://doi.org/10.1017/jfm.2021.960).

  • B. Dinesh and R. Narayanan, Nature of branching in electrohydrodynamic instability, accepted for a publication in Physical Review Fluids, Volume 6, Issue: 5, 10 May 2021 (doi.org/10.1103/PhysRevFluids.6.054001).

  • B. Dinesh and R. Narayanan, Branching behavior of the Rayleigh-Taylor instability in linear viscoelastic fluids, Journal of Fluid Mechanics, Volume 915, 17 March 2021 (doi.org/10.1017/jfm.2021.80).

  • B. Dinesh and S. Pushpavanam, Stability of stratified flows through neo-Hookean soft-gel-coated parallel walls, PHYSICS OF FLUIDS, Volume 30, ISSUE: 10, 11 October 2018 (doi.org/10.1063/1.5045658).

  • B. Dinesh and S. Pushpavanam, Effect of soluble surfactants on the stability of stratified flows through soft-gel-coated walls, PHYSICAL REVIEW E, Volume 98, Issue: 2, 13 August 2018 (doi.org/10.1103/PhysRevE.98.023106).

  • B. Dinesh and S. Pushpavanam, Linear stability of layered two-phase flows through parallel soft-gel-coated walls, PHYSICAL REVIEW E, Volume 56, Issue: 14, 31 July 2017, Pages 4145–4155, July 2017 (doi.org/10.1103/PhysRevE.96.013119).

  • D. S. Pillai, B. Dinesh, T. Sundararajan, S. Pushpavanam, A Viscous Potential Flow model for core-annular flow, APPLIED MATHEMATICAL MODELLING, Volume 40, Issue: 7-8, December 2015, (doi.org/10.1016/j.apm.2015.12.017).

 

  • M. Varshney and B. Dinesh, The role of a soft-gel on the natural frequencies and in the evolution of Faraday waves at the free surface of a fluid layer. Accepted for an oral talk in APS DFD 22rd November, 2022.

  • B. Dinesh, Nevin Brosius, T. Corbin and R. Narayanan, The role of a deep wavy wall on the natural frequencies of a fluid interface: theory and experiments. An oral talk in APS DFD 23rd November, 2021.

  • Igin B Ignatius, B. Dinesh and R. Narayanan, Suppressing Marangoni instability using parametric forcing. An oral talk in APS DFD 22nd November, 2021.

  • B. Dinesh and R. Narayanan, Rayleigh-Taylor Waves in Viscoelastic Fluids- an Unintuitive Result. An oral talk in AIChE Annual meeting on 9th November, 2021.

  • B. Dinesh and R. Narayanan, Pattern formation through Rayleigh-Taylor instability in linear viscoelastic compliant media. Accepted for a talk in IMA10, Iași, Romania, 13-17 June 2021.

  • B. Dinesh, Nevin Brosius and R. Narayanan, Effect of wall corrugation on thin film resonance instability: Theory and Experiments. Accepted for a talk in IMA10, Iași, Romania, 13-17 June 2021.

  • B. Dinesh and R. Narayanan, Pattern formation through Rayleigh-Taylor instability in linear viscoelastic compliant media. Accepted for a short talk with a poster presentation in ICTAM2021, Milano, Italy, August 22-27, 2021.

  • B. Dinesh, Nevin Brosius and R. Narayanan, Effect of wall corrugation on thin film resonance instability: Theory and Experiments. Accepted for a short talk with a poster presentation in ICTAM2021, Milano, Italy, August 22-27, 2021.

  • B. Dinesh and R. Narayanan, Weak nonlinear analysis of Rayleigh-Taylor instability in linear viscoelastic fluids. A poster in Early Career Session in COMPFLU on 10th December 2020.

  • B. Dinesh, Nevin Brosius and R. Narayanan, Nonlinear Instability of Resonance in Thin Films with Patterned Walls: Theory and Experiments. An oral talk in AIChE Annual meeting on 16th November 2020.

  • B. Dinesh and R. Narayanan, Pattern Formation in Electrostatic Instability: Weakly Nonlinear Analysis. An oral talk in AIChE Annual meeting on 20th November 2020.

  • B. Dinesh and R. Narayanan, Electrostatic Interfacial Instability: Weakly Nonlinear Analysis. A talk in APS DFD on 22nd November 2020.

  • B. Dinesh and R. Narayanan, Weak nonlinear analysis of Rayleigh-Taylor instability in linear viscoelastic fluids. A talk in APS DFD on 24th November 2020.

  • B. Dinesh, Nevin Brosius, Farzam Zoueshtiagh and R. Narayanan, Two-phase Faraday resonance with patterned substrates- Theory and Experiments. AIChE Annual Meeting, Orlando, Nov 10-15, 2019.

  • B. Dinesh and R. Narayanan, Can we use reduced order models? The Burgers program 2019 summer research school on fluid dynamics, University of Maryland, college park, 3-7th June 2019.

  • B. Dinesh and S. Pushpavanam, Effect of soluble surfactant on the linear stability of layered two-phase flows through soft-gel-coated parallel walls. CompFlu, IC&SR, IIT, Madras. 18-20th December 2017.

  • B. Dinesh and S. Pushpavanam, Effect of soluble surfactant on the linear stability of layered two-phase flows through soft-gel-coated parallel walls. Journal of Fluid Mechanics Symposium, IC&SR, IIT, Madras. 14-15th December 2017.

  • B. Dinesh and S. Pushpavanam, Linear stability of layered two-phase flows through soft-gel-coated parallel walls. AIChE Annual Meeting, Minneapolis. Oct 29-Nov 3, 2017.

  • B. Dinesh and S. Pushpavanam, Biofluid dynamics of two-phase stratified flow through flexible membranes. American Physical Society 69th Annual DFD Meeting (APS Physics), Portland, Oregon. Nov 20-22, 2016.

  • B. Dinesh and S. Pushpavanam, Stability analysis of two-phase stratified flows in a confined channel. American Physical Society 68th Annual DFD Meeting (APS Physics), Boston, Massachusetts. Nov 22-24, 2015.

 

Mradul Varshney (M.Tech): Currently working on Faraday instability 

 

  • Delivered lectures in a Gian course on "Interfacial Instabilities" conducted by Department of Mathematics at IIT Ropar.

  • Chemical Engineering Practices at IIT BHU 2022.

  • Teaching assistant for Mathematical methods in chemical engineering at IIT Madras, 2017, 2018. The course introduced analytical methods of solving linear algebraic, ordinary differential and partial differential equations. I have delivered a few lectures in the course. The faculty-in-charge was Prof. S. Pushpavanam.

  • Teaching assistant for Multiphase flows at IIT Madras, 2015, 2016. The course focused on hydrodynamic instabilities. I have delivered a few lectures in the course. The faculty-in-charge was Prof. S. Pushpavanam.

 

  • Ramanujan Fellowship awarded in the year 2022 by Science and Engineering Research Board, Department of Science and Technology, Government of India.

  • Institute Research Award for the best Ph.D. research scholar in the Department of Chemical Engineering at Indian Institute of Technology, Madras (IITM) for the year 2019.