38 citations · 123 across the 13 of their papers we have counts for
13 papers
Early warning signals for primary and secondary bifurcation to oscillatory instabilities
Rohit Radhakrishnan, Prasana Kumar, Induja Pavithran +1
In several natural and engineering systems, changes in control parameters can trigger bifurcations that lead to sustained or growing periodic oscillations, indicating the onset of…
The role of disordered dynamics on the nature of transition in a turbulent reactive flow system
Sivakumar Sudarsanan, Induja Pavithran, R. I Sujith
The transition from a chaotic to a periodic oscillatory state can be smooth or abrupt in real-world turbulent systems. Although there have been several mathematical studies, the oc…
Early warnings are too late when parameters change rapidly
Rohit Radhakrishnan, Induja Pavithran, Valerie Livina +2
Early warning signals (EWSs) forewarn a sudden transition (or tipping) from a desirable state to an undesirable state. However, we observe that EWSs detect an impending tipping pas…
Emergence of order from chaos through a continuous phase transition in a turbulent reactive flow system
Sivakumar Sudarsanan, Amitesh Roy, Induja Pavithran +2
As the Reynolds number is increased, a laminar fluid flow becomes turbulent, and the range of time and length scales associated with the flow increases. Yet, in a turbulent reactiv…
Explosive synchronization in a turbulent reactive flow system
Amal Joseph, Induja Pavithran, R. I. Sujith
The occurrence of abrupt dynamical transitions in the macroscopic state of a system has received growing attention. We present experimental evidence for abrupt transition via explo…
Frequency shifts during whistling occurs as transition between two phase synchronised limit cycles via a state of intermittency or abruptly
Ramesh S. Bhavi, Induja Pavithran, R. I. Sujith
Self-sustained oscillations arising from the interactions between the hydrodynamic and the acoustic field are disastrous in engineering systems such as segmented solid rocket motor…
Early warnings of tipping in a non-autonomous turbulent reactive flow system: efficacy, reliability, and warning times
Ankan Banerjee, Induja Pavithran, R. I. Sujith
Real-world complex systems such as the climate, ecosystems, stock markets, and combustion engines are prone to dynamical transitions from one state to another, with catastrophic co…
Tipping in complex systems under fast variations of parameters
Induja Pavithran, P. R. Midhun, R. I. Sujith
Sudden transitions in the state of a system are often undesirable in natural and human-made systems. Such transitions under fast variation of system parameters are called rate-indu…
Imprints of log-periodicity in thermoacoustic systems close to lean blowout
Ankan Banerjee, Induja Pavithran, R. I. Sujith
In the context of statistical physics, critical phenomena are accompanied by power laws having a singularity at the critical point where a sudden change in the state of the system…
Abrupt transitions in turbulent thermoacoustic systems
Ramesh S. Bhavi, Induja Pavithran, Amitesh Roy +1
Abrupt transitions to the state of thermoacoustic instability (TAI) in gas turbine combustors are a significant challenge plaguing the development of next-generation low-emission a…
Effect of rate of change of parameter on early warning signals for critical transitions
Induja Pavithran, R. I. Sujith
Many dynamical systems exhibit abrupt transitions or tipping as the control parameter is varied. In scenarios where the parameter is varied continuously, the rate of change of cont…
Universality in spectral condensation
Induja Pavithran, Vishnu R. Unni, Alan John Varghese +6
Self-organization is the spontaneous formation of spatial, temporal, or spatiotemporal patterns in complex systems far from equilibrium. During such self-organization, energy distr…
Universality in the emergence of oscillatory instabilities in turbulent flows
Induja Pavithran, Vishnu R. Unni, Alan J. Varghese +4
Spontaneous emergence of periodic oscillations due to self-organization is ubiquitous in turbulent flows. The emergence of such oscillatory instabilities in turbulent fluid mechani…