Exploration of combustion instability triggering using large eddy simulation of a multiple injector liquid rocket engine

A Urbano, L Selle, G Staffelbach, B Cuenot… - Combustion and …, 2016 - Elsevier
This article explores the possibility of analyzing combustion instabilities in liquid rocket
engines by making use of Large Eddy Simulations (LES). Calculations are carried out for a …

Effects of recess length on combustion instability in a model chamber with a gas-centered swirl coaxial injector

Y Wang, CH Cho, J Du, CH Sohn - Aerospace Science and Technology, 2022 - Elsevier
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 …

Prediction of combustion instability by combining transfer functions in a model rocket combustor

Y Wang, CH Sohn, J Bae, Y Yoon - Aerospace Science and Technology, 2021 - Elsevier
The flame transfer function (FTF) and acoustic transfer function (ATF) are estimated
experimentally and numerically, respectively, and both are combined to predict combustion …

An analysis of fuel–oxidizer mixing and combustion induced by swirl coaxial jet injector with a model of gas–gas injection

YJ Kim, CH Sohn, M Hong, SY Lee - Aerospace Science and Technology, 2014 - Elsevier
Mixing and combustion characteristics of swirl coaxial jet injector for gas–liquid injection are
investigated numerically with a model of gas–gas injection. The gas–liquid injector, widely …

Comprehensive correlation for the prediction of the heat release characteristics of diesel/CNG mixtures in a single-zone combustion model

S Lebedevas, L Raslavičius, M Drazdauskas - Sustainability, 2023 - mdpi.com
Fuel combinations with substantial differences in reactivity, such as diesel/CNG, represent
one of the most promising alternative combustion strategies these days. In general, the …

Effects of injector spacing and momentum flux ratio on combustion instability in a model chamber with gas-centered swirl coaxial injectors

Y Wang, CH Cho, CH Sohn - Aerospace Science and Technology, 2024 - Elsevier
This study investigates the effects of injector spacing and momentum flux ratio on
combustion instability in a model chamber with single and two injectors, both experimentally …

Experimental verification for acoustic damping enhancement by gaps in injector-formed baffles

KJ Lee, HJ Kim, S Seo, HS Choi - Journal of Propulsion and Power, 2009 - arc.aiaa.org
THERE are two conflicting concerns in the development of new rocket engine combustors,
which include performance and stability. Generally, combustors of high performance have …

A CFD study on thermo-acoustic instability of methane/air flames in gas turbine combustor

CH Sohn, HC Cho - Journal of mechanical science and technology, 2005 - Springer
Thermo-acoustic instability of methane/air flames in an industrial gas-turbine combustor is
numerically investigated adopting CFD analysis. The combustor has 37 EV burners through …

Laboratory scale survey of pentad injector stability characteristics

RC Cavitt, RA Frederick Jr, VG Bazarov - Journal of Propulsion and …, 2008 - arc.aiaa.org
This work provides an assessment of an experimental method for characterizing combustion
stability of liquid rocket injectors. The research has shown that the single-element laboratory …

Review of challenges of the design of rocket motor case structures

I Hossam, S Saleh, H Kamel - International Conference on …, 2019 - asat.journals.ekb.eg
This paper presents the state of the art and challenges in the design of rocket motor case
structures RMCS it briefly describes the construction of RMCS then lists the different …