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 …

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 …

Combustion instability is investigated in a model chamber by changing the recess length of
a gas-centered swirl coaxial injector ranging from 0 mm to 20 mm with a 4 mm interval …

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 …

To investigate a hypothesis of the orifice flow-induced instability in rocket engine thrust
chambers, a single liquid oxygen (LOX) injector with an optically accessible orifice module …

Variable-thrust cryogenic propellant rocket engines are gaining significant research interest
in space exploration. However, low-frequency unstable combustion is still a challenging …

Spatiotemporal visualization of instantaneous flame structures in a hydrogen-fueled
axisymmetric supersonic combustor was investigated using multiview planar laser-induced …

This study concerns the cryogenic hydrogen combustion in subcritical pressure conditions,
with practical relevance to rocket engine applications. A cryogenic two-phase flame in the …

Orifice whistling is recently established as a cause of high frequency combustion instability
in liquid rocket engines. The series of studies on the experimental thrust chamber, known as …

This paper investigates different types of longitudinal mode coupling in subscale rocket
combustion chambers using experimental data and numerical simulations. Based on a one …