[HTML][HTML] Recent developments on applying acoustic waves for efficiency improvements of different thermofluids systems

OA Zargar, AX Andrade, SC Hu, YC Shih… - International Journal of …, 2024 - Elsevier
This review classified recent works using proper acoustic waves to develop more efficient
thermofluids systems for different industrial equipment such as swirl combustor, jet in …

Thermoacoustic instability and flame transfer function in a lean direct injection model gas turbine combustor

S Joo, S Kwak, J Lee, Y Yoon - Aerospace Science and Technology, 2021 - Elsevier
This paper discusses the combustion dynamic characteristics of hydrogen/methane flames
and the flame response to fuel flow fluctuation in a model lean-direct injection gas turbine …

[HTML][HTML] Supercritical fluid flow dynamics and mixing in gas-centered liquid-swirl coaxial injectors

L Zhang, X Wang, Y Li, ST Yeh, V Yang - Physics of Fluids, 2018 - pubs.aip.org
Gas-centered, liquid-swirl coaxial injectors similar to those used in the main chambers of
oxidizer-rich staged-combustion engines are investigated computationally, in terms of …

Dynamics of self-pulsation in gas-centered swirl coaxial injector: an experimental study

SK Sahoo, H Gadgil - Journal of Propulsion and Power, 2021 - arc.aiaa.org
Experimental investigations on the self-pulsation dynamics in a gas-centered swirl coaxial
atomizer are conducted using water and air. Experiments are performed in the pulsation …

Modal analysis of the liquid sheet breakup with and without acoustic forcing

S Dighe, H Gadgil - International Journal of Multiphase Flow, 2022 - Elsevier
The objective of the present study is to understand the coupling between the acoustics and
the sheet atomization process. The phenomenon is studied through modal decompositions …

Dynamic behavior of jet-swirl spray under resonance condition with external excitation

H Jo, G Jeong, J Bae, Y Yoon - Acta Astronautica, 2021 - Elsevier
Gas-centered swirl coaxial (GCSC) injectors are used in many liquid propellant rocket
engines to improve combustion efficiency. In this study, fluctuation of the mass flow rate is …

[HTML][HTML] Effect of ambient pressure on the performance of a gas-centered swirl coaxial injector

Y Gao, J Kang, S Ying, K Huang, L Su, Y Tong, W Lin - AIP Advances, 2023 - pubs.aip.org
In this study, water and air were used as simulated media to investigate the spray
characteristics of a gas-centered swirl coaxial (GCSC) injector under different ambient …

On the spatial characteristics of the flame transfer function for a GCH4-GO2 swirl coaxial flame

H Jo, DH Kim, J Bae, Y Yoon - Acta Astronautica, 2024 - Elsevier
In this study, the combustion instability characteristics of gaseous methane–gaseous oxygen
atmospheric flame were investigated. A swirl coaxial injector was used under external …

Experimental study of the combustion efficiency in multi-element gas-centered swirl coaxial injectors

S Woo, J Lee, Y Han, Y Yoon - Energies, 2020 - mdpi.com
The effects of the momentum-flux ratio of propellant upon the combustion efficiency of a gas-
centered-swirl-coaxial (GCSC) injector used in the combustion chamber of a full-scale 9-tonf …

Study on the influence of the combustion chamber baffle on atomization characteristics of gas-centered swirl coaxial injector

S Wang, W Qiao, D Zhang, B Zhang, Q Fu - Acta Astronautica, 2024 - Elsevier
The combustion chamber baffle is an important means to suppress the combustion instability
of the combustion chamber of liquid rocket engine. In order to study the influence of spray …