In this paper, we present the numerical evidence of multiple bifurcations in thermoacoustic
instability as we decrease the equivalence ratio (ϕ) from fuel-rich (ϕ= 1.5) to fuel-lean (ϕ …

The nonlinear behavior of thermoacoustic oscillation for premixed swirl flames fueled with
CH 4/air mixtures is experimentally studied by changing the equivalence ratio Φ, combustor …

Abstract Knowledge of the underlying physical mechanisms responsible for the triggering of
high-frequency transverse combustion dynamics is of fundamental importance in the …

Understanding the distinguishing physical properties of multi-element lean-premixed high
hydrogen content flames is expected to be integral to the development of carbon-neutral …

Rocket engines are prone to suffer from transverse combustion instabilities, manifesting as
periodic oscillations in pressure and heat release rate. Self-excited transverse instabilities in …

The self-acceleration and global pulsation of spherically expanding laminar hydrogen-air
flames were studied in a spherical explosion vessel, over a wide range of equivalence ratios …

Capturing the complex spatiotemporal flame dynamics inside a rocket combustor is
essential to validate high-fidelity simulations for developing high-performance rocket …

This paper presents the first numerical evidence of the intermittency routes that exist before
and after the occurrence of thermoacoustic instability in a subcritical single-element liquid …

The dynamic response of a confined, premixed turbulent jet flame is investigated at high
thermal power densities (⁠∼ 25 MW/m 2/bar) and turbulence levels (⁠ R e jet∼ 5× 10 5⁠) …

The influence of fuel temperature on combustion instabilities is investigated in a liquid-
fueled, piloted swirl flame at 1.0 MPa. Fuels used for this study include Jet A and a Fischer …