The use of OH* and CH* as heat release markers in combustion dynamics

S Sardeshmukh, M Bedard… - International Journal of …, 2017 - journals.sagepub.com
The study examines chemiluminescence measurements and computations as a method of
validation. Because chemiluminescent radicals are present in small concentrations and …

Chemiluminescence as a diagnostic in studying combustion instability in a practical combustor

MJ Bedard, TL Fuller, S Sardeshmukh… - Combustion and …, 2020 - Elsevier
Prediction of combustion instability is essential in reducing development costs of large scale
rocket engines. Recently, high fidelity CFD models have shown some ability to represent the …

Quasi-1D modeling of heat release for the study of longitudinal combustion instability

ML Frezzotti, F Nasuti, C Huang, CL Merkle… - Aerospace Science and …, 2018 - Elsevier
A method for obtaining combustion response functions from experiments or detailed
computational fluid dynamic (CFD) analyses is described and used in a quasi one …

Longitudinal combustion instability in a rocket engine with a single coaxial injector

TM Nguyen, PP Popov, WA Sirignano - Journal of Propulsion and …, 2018 - arc.aiaa.org
Longitudinal combustion instability in liquid-propellant rocket engines is investigated using
an in-house axisymmetric, multispecies compressible flow solver. Turbulence is treated …

Analysis of self-excited transverse combustion instability in a rectangular model rocket combustor

K Guo, Y Ren, Y Tong, W Lin, W Nie - Physics of Fluids, 2022 - pubs.aip.org
A methane/oxygen mixture is considered to be an appropriate propellant for many future
rocket engines due to its practicality and low cost. To better understand the combustion …

The impacts of three flamelet burning regimes in nonlinear combustion dynamics

TM Nguyen, WA Sirignano - Combustion and Flame, 2018 - Elsevier
Axisymmetric simulations of a liquid rocket engine are performed using a delayed detached-
eddy-simulation (DDES) turbulence model with the Compressible Flamelet Progress …

Spontaneous and triggered longitudinal combustion instability in a single-injector liquid-rocket combustor

TM Nguyen, WA Sirignano - AIAA Journal, 2019 - arc.aiaa.org
Spontaneous and triggered longitudinal combustion instability is simulated numerically in a
single-injector liquid-rocket engine using a recently developed axisymmetric compressible …

Comparative evaluation between experiment and simulation for a transverse instability

CJ Morgan, KJ Shipley, WE Anderson - Journal of Propulsion and …, 2015 - arc.aiaa.org
A transverse combustion instability study composed of experimental and hybrid Reynolds-
averaged Navier–Stokes/large eddy simulation results is described. The study is focused on …

Driving mechanisms in low-order modeling of longitudinal combustion instability

S D'Alessandro, ML Frezzotti, B Favini… - Journal of Propulsion and …, 2023 - arc.aiaa.org
Several test cases in the literature have shown that both transverse and longitudinal high-
frequency combustion instability can be driven by the injector dynamics. In these cases …

Computational investigations of the coupling between transient flame dynamics and thermo-acoustic instability in a self-excited resonance combustor

T Pant, C Han, H Wang - Combustion Theory and Modelling, 2019 - Taylor & Francis
Combustion instability due to thermo-acoustic interactions is a critical combustion problem
that requires a thorough understanding because of its adverse impact on stable and reliable …