3 papers
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…
physics.flu-dyn2020
Fractal dimension of premixed flames in multifractal turbulence
Amitesh Roy, R I Sujith
In turbulent premixed flames, the fractal dimension of flame iso-surface is argued to be for Damköhler's large-scale limit and for Damkö…
physics.flu-dyn2020
Flame dynamics during intermittency and secondary bifurcation to longitudinal thermoacoustic instability in a swirl-stabilized annular combustor
Amitesh Roy, Samarjeet Singh, Asalatha Nair +2
In this experimental study on a laboratory-scale turbulent annular combustor with sixteen swirl-stabilized burners, we study the flame-flame and flame-acoustic interactions during…