From the 1 of 15 linked papers with an AI index.
11 papers · 1 filter
Metamorphosis of transition between states of limit cycle oscillations in aeroacoustic system
Siddharth Kancharlapalli, Beeraiah Thonti, Sivakumar Sudarshanan +2
The study experimentally investigates how varying the distance between orifices in a ducted turbulent aeroacoustic flow changes the nature of the transition to limit‑cycle oscillat…
Periodic modulation of the space-filling nature of the turbulent flame leads to spiky heat release oscillations
Sivakumar Sudarsanan, Manikandan Raghunathan, Shwetha Viswesh +1
Spiky oscillations are characterized by slow-fast dynamics and are observed in excitable media such as neuronal membranes and cardiac cells. In a turbulent reactive flow system, we…
Modeling the influence of interactions on different variables in a turbulent thermoacoustic system
Aneesh Srivatsa, Shruti Tandon, Andrea Elizabeth Biju +3
Turbulent reacting flows confined to ducts are plagued by thermoacoustic instability, a state in which a positive feedback between flow, flame and acoustic perturbations leads to t…
A network-theoretic approach for characterizing Mack-mode instability in high-speed boundary layers
Sai Prasad Mohanty, Nikhil Khobragade, Gaurav Chopra +3
Here we present a network theory-based approach to investigate the Mack-mode instability signature found in high-speed schlieren data from a Mach 6 laminar boundary layer flow over…
Non-monotonic emergence of order from chaos in turbulent thermo-acoustic fluid systems
Aswin Balaji, Shruti Tandon, Norbert Marwan +2
Self-sustained order can emerge in complex systems due to internal feedback between coupled subsystems. Here, we present our discovery of a non-monotonic emergence of order amidst…
Cross-variable amplitude-frequency coupling during intermittency in a turbulent thermoacoustic system
Shruti Tandon, Aswin Balaji, Rohit Radhakrishnan +3
We investigate flame-acoustic interactions in a turbulent combustor during the state of intermittency before the onset of thermoacoustic instability using complex networks. Experim…