41 citations · 294 across the 30 of their papers we have counts for
11 papers · 1 filter
Mean-field synchronization model of turbulent thermoacoustic transitions
Samarjeet Singh, Amitesh Roy, Jayesh M. Dhadphale +2
Thermoacoustic instabilities observed in turbulent combustion systems have disastrous consequences and are notoriously challenging to model, predict and control. Here, we introduce…
Multilayer network analysis to study complex inter-subsystem interactions in a turbulent thermoacoustic system
Shruti Tandon, Raman I. Sujith
Thermoacoustic systems are complex systems where the interactions between the hydrodynamic, acoustic and heat release rate fluctuations lead to diverse dynamics such as chaos, inte…
Synchronization based model for turbulent thermoacoustic systems
Yue Weng, Vishnu R. Unni, R. I. Sujith +1
We present a phenomenological reduced-order model to capture the transition to thermoacoustic instability in turbulent combustors. The model is based on the framework of synchroniz…
Occasional coupling enhances amplitude death in delay-coupled oscillators
Anupam Ghosh, Sirshendu Mondal, R. I. Sujith
This paper aims to study amplitude death in time delay coupled oscillators using the occasional coupling scheme that implies the intermittent interaction among the oscillators. An…
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…
Small-scale intermittency of premixed turbulent flames
Amitesh Roy, Jason Ryan Picardo, Benjamin Emerson +2
Premixed turbulent flames, encountered in power generation and propulsion engines, are an archetype of a randomly advected, self-propagating surface. While such a flame is known to…
Cluster formation in particle-laden flows is a continuous phase transition
K Shri Vignesh, Shruti Tandon, Praveen Kasthuri +1
Studying particle-laden flows is essential to understand diverse physical processes such as rain formation in clouds, pathogen transmission, and pollutant dispersal. Distinct clust…
Control of growth of local heat release rate fluctuations to suppress thermoacoustic instability
M. Raghunathan, N. B. George, V. R Unni +3
This experimental study investigates the dynamical transition from stable operation to thermoacoustic instability in a turbulent bluff-body stabilized dump combustor. We conduct ex…
Mitigation of limit cycle oscillations in a turbulent thermoacoustic system via delayed acoustic self-feedback
Ankit Sahay, Abhishek Kushwaha, Samadhan A. Pawar +3
We report the occurrence of amplitude death (AD) of limit cycle oscillations in a bluff body stabilized turbulent combustor through delayed acoustic self-feedback. Such feedback co…
Mean-field synchronization model for open-loop, swirl controlled thermoacoustic system
Samarjeet Singh, Ankit Kumar Dutta, Jayesh M. Dhadphale +3
Open-loop control is known to be an effective strategy for controlling self-excited thermoacoustic oscillations in turbulent combustors. In this study, we investigate the suppressi…