53 citations · 89 across the 5 of their papers we have counts for
5 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…
Shock-induced tipping in a thermoacoustic system
Bhadra Sreelatha, Rohit Radhakrishnan, R. I. Sujith
Tipping refers to the transition of a system from one state to another. In this study, we focus on shock-induced tipping, which occurs due to a sudden and large disturbance in a co…
Coupled interaction between acoustics and unsteady flame dynamics during the transition to thermoacoustic instability in a multi-element rocket combustor
Praveen Kasthuri, Samadhan A. Pawar, Rohan Gejji +2
Rocket engine combustors are prone to transverse instabilities that are characterized by large amplitude high frequency oscillations in the acoustic pressure and the heat release r…
Dynamics of coupled thermoacoustic oscillators under asymmetric forcing: Experiments and theoretical modeling
Ankit Sahay, Amitesh Roy, Samadhan A. Pawar +1
Quenching of limit cycle oscillations (LCO), either through mutual coupling or external forcing, has attracted wide attention in several fields of science and engineering. However,…
Non-normality in combustion-acoustic interaction in diffusion flames: a critical revision
Luca Magri, K. Balasubramanian, R. I. Sujith +1
Perturbations in a non-normal system can grow transiently even if the system is linearly stable. If this transient growth is sufficiently large, it can trigger self-sustained oscil…