Rotational symmetry-driven modal dynamics of high-frequency transverse instabilities in a lean-premixed multislit hydrogen combustor

D Park, T Lee, KT Kim - Combustion and Flame, 2022 - Elsevier
A cluster of small-scale multislit injectors, with aperture dimension of the same order of
magnitude as the characteristic thickness of hydrogen flames, effectively mitigates flashback …

Spatio-Temporal Analysis of a Self-Pulsating Gas-Centered Swirl Coaxial Injector with Forced Gas Jet

SK Sahoo, H Gadgil, S Kumar, KSB Kumar - AIAA Journal, 2023 - arc.aiaa.org
The objective of the present work is to examine the effects of the acoustically forced gas jet
on self-pulsating sprays generated from a gas-centered swirl coaxial injector. We conduct …

[PDF][PDF] Dynamical systems and complex systems approach to study transition to thermoacoustic instability in a model multi element rocket combustor

K PRAVEEN - 2022 - researchgate.net
Combustors in modern high-performing rocket engines are prone to transverse
thermoacoustic instability characterized by large amplitude high-frequency acoustic …