Non-Stipendiary Junior Research Fellow
My interests lie in understanding mechanisms that govern spatio-temporal patterns and emergent behaviours in systems such as thermacoustic systems, transistional (convective/shear) flows of fluids and motion of active organelle filaments.
I am looking at formation of quasipatterns; patterns that possess discrete spectra despite having no translational symmetries.
The underlying theme of my research interests lies in understanding spatio-temporal patterns and emergent behaviour in a variety of systems. During my PhD, I focussed on the analysis of laminar premixed flame-acoustic interaction particularly on the non-normal nature of this interaction and in the application of tools from dynamical systems’ theory to analyze the resulting oscillations. Building upon this, I continue my work in this area with emphasis on modelling combustion dynamics using distributed delay differential equations and washout-aided feedback control to change the nature of bifurcation in thermoacoustic systems. As part of my post-doctoral work, I have been investigating spatio-temporal patterns in transistional flows and inclined layer convection. Currently I am working on emergent behavior in active fluids such as the motion of organelle filaments on motility assays and in the formation of quasipatterns – patterns that possess discrete spectra despite lacking any translational symmetries.
Invariant states in inclined layer convection Part 2: Bifurcations and connections between branches of invariant states
Reetz, F; Subramanian, P; Schenider, T
Journal of Fluid Mechanics volume 898 (9 July 2020)
Buckling instabilities and spatio-temporal dynamics of active elastic filaments.
Fily, Y; Subramanian, P; Schneider, T; Chelakkot, R; Gopinath, A
Journal of the Royal Society, Interface issue 165 volume 17 page 20190794-20190794 (22 April 2020)
Buckling instabilities and spatio-temporal dynamics of active elastic filaments
Fily, Y; Subramanian, P; Schneider, T; Chellakot, R; Gopinath, A
Interface issue 165 volume 17 (22 April 2020)
Spatiotemporal chaos and quasipatterns in coupled reaction–diffusion systems
Castelino, J; Ratliff, D; Rucklidge, A; Subramanian, P; Topaz, C
Physica D: Nonlinear Phenomena volume 409 page 132475-132475 (1 April 2020)
Which wave numbers determine the thermodynamic stability of soft matter quasicrystals?
Ratliff, D; Archer, A; Subramanian, P; Rucklidge, A
Physical Review Letters issue 14 volume 123 page 148004- (1 October 2019)
Deriving phase field crystal theory from dynamical density functional theory: Consequences of the approximations
Archer, A; Ratliff, D; Rucklidge, A; Subramanian, P
Physical Review E issue 2 volume 100 page 022140- (28 August 2019)
Spatially localized quasicrystalline structures
Subramanian, P; Archer, A; Knobloch, E; Rucklidge, A
New Journal of Physics volume 20 (December 2018)