3 papers
physics.flu-dyn2023
Identifying optimal location for control of thermoacoustic instability through statistical analysis of saddle point trajectories
C. P. Premchand, Abin Krishnan, Manikandan Raghunathan +4
We propose a framework of Lagrangian Coherent Structures (LCS) to enable passive open-loop control of tonal sound generated during thermoacoustic instability. Experiments were perf…
physics.flu-dyn2023
Spatiotemporal Patterns Corresponding to Phase Synchronization and Generalized Synchronization States of Thermoacoustic Instability
Samadhan A. Pawar, P. R. Midhun, K. V. Reeja +3
Thermoacoustic instability in turbulent combustion systems emerges from the complex interplay among the flame, flow, and acoustic subsystems. While the onset of thermoacoustic inst…
physics.flu-dyn2020
Critical region in the spatiotemporal dynamics of a turbulent thermoacoustic system and smart passive control
Amitesh Roy, C P Premchand, Manikandan Raghunathan +3
We develop a passive control strategy for suppressing thermoacoustic instability in a bluff-body stabilized premixed turbulent combustor. When the equivalence ratio is varied, ther…