Kannabiran Seshasayanan

Assistant professor

Assistant Professor.,Department of Physics, IIT Kharagpur (2020-2023) .


Postdoc., Physics, CEA Saclay, France (2017-2020).

PhD., Physics, Ecole Normale Superieure, Paris, France (2014-2017) .


Masters., Mechanics & Physics, Ecole Normale Superieure & Ecole Polytechnique,France (2012-2014).

B Tech., Aerospace Engineering, IIT Madras (2008-2012) .


914422574077

kanna[at]iitm[.]ac[.]in

 Keywords:

 Nonlinear dynamics, turbulence, magneto-hydrodynamics, Geophysical and Astrophysical fluid dynamics, two-dimensional turbulence, non-equilibrium         statistical mechanics.

 Office Location

   ASE158 (first floor),
   Aerospace Engineering block,
   Indian Institute Of Technology Madras,
   Phone: +91 (44) 22574077.
   Email: kanna@iitm.ac.in

 Overview:

Our group is interested in studying geophysical and astrophysical systems, in particular the description of fluid (hydrodynamic) and electromagnetic (magneto- hydrodynamic) fields. We predominantly focus on the following,

  • Understanding the origin and sustenance of magnetic fields in stars and planets,
  • Dynamics of large scale flows in the atmosphere and oceans,
  • Transitions between turbulent flows: instabilities, bifurcations and phase- transitions.

   We predominantly use analytical and numerical techniques to study different systems and employ tools from nonlinear dynamics and statistical physics.

  Recent publications

  • “Cascade transitions in generalised two-dimensional turbulence”, V. B. Jha, K.Seshasayanan & V. Dallas, arXiv:2305.12255,, in review at J. Fluid Mech. (2024)
  •  “Effect of confinement on the transition from 2D to 3D fast rotating flows”, C. S.Lohani, S. K. Nayak & K. Seshasayanan, Phys. Rev. Fluids (2024).
  •  “Spatial extreme values of vorticity and velocity gradients in two-dimensionalturbulent flows”, K. Seshasayanan, arXiv:2301.09900, in review at Phys. Rev. E(2024).
  • “Equivalence of nonequilibrium ensembles: Two-dimensional turbulence with dual cascade”, M. Maji, et al., Phys. Rev. E, 108 (1), 015102 (2023).
  • “Physics-informed data based neural networks for two-dimensional turbulence”,Kag, K. Seshasayanan & V. Gopinath, Phys. Fluids, 34 (5), 055130 (2022).
  • “Bifurcations of a plane parallel flow with Kolmogorov forcing”, K. Seshasayanan,V. Dallas & S. Fauve, Phys. Rev. Fluids, 6 (10), 103902 (2021).
  • “Phase transitions in turbulence and the multiplicative-noise universality class”,A. Alexakis, S. J. Benavides, K. Seshasayanan & F. Pétrélis, Phys. Rev. Fluids, 6(2), 024605 (2021).
  •  “Abrupt transitions of zonal jets in two-dimensional turbulent shear flow”, V.Dallas, K. Seshasayanan & S. Fauve, Phys. Rev. Fluids, 5, 084610 (2020).
  • “Onset of three-dimensionality in rapidly rotating turbulent flows”, K.Seshasayanan & B. Gallet, J. Fluid Mech. Rapids, 901, R5, (2020).
  •  “Surface gravity waves propagating in a rotating frame: the Ekman-Stokesinstability”, K. Seshasayanan & B. Gallet, Phys. Rev. Fluids, 4, 104802 (2019).