Large eddy simulations of spray combustion instability in an aero-engine combustor at elevated temperature and pressure
Sign Up to like & getrecommendations! Published in 2021 at "Aerospace Science and Technology"
DOI: 10.1016/j.ast.2020.106329
Abstract: Abstract Large eddy simulations (LES) of self-excited spray combustion instability in an aero-engine combustor are performed to investigate the mechanisms of combustion instability. Three spray flames with different droplet diameters and wall boundary conditions are… read more here.
Keywords: large eddy; spray combustion; combustion instability; combustion ... See more keywords
Large-eddy simulation and linear acoustic modeling of entropy mode oscillations in a model combustor with coolant injection
Sign Up to like & getrecommendations! Published in 2018 at "Chinese Journal of Aeronautics"
DOI: 10.1016/j.cja.2018.05.013
Abstract: Abstract Lean-burn combustor is particularly susceptible to combustion instability and the unsteady heat release is usually considered as the excitation of the self-maintained thermo-acoustic oscillations. The transverse coolant injection is widely used to reduce the… read more here.
Keywords: large eddy; coolant injection; entropy; combustion instability ... See more keywords
A comprehensive investigation of LSTM-CNN deep learning model for fast detection of combustion instability
Sign Up to like & getrecommendations! Published in 2021 at "Fuel"
DOI: 10.1016/j.fuel.2021.121300
Abstract: Abstract In this paper, we propose a deep learning model to detect combustion instability using high-speed flame image sequences. The detection model combines Convolutional Neural Network (CNN) and Long Short-Term Memory network (LSTM) to learn… read more here.
Keywords: combustion instability; model; deep learning; detection ... See more keywords
Analysis of Combustion Instability of Methane–Air Premixed Swirling Flame Based on OH-PLIF Measurements
Sign Up to like & getrecommendations! Published in 2023 at "ACS Omega"
DOI: 10.1021/acsomega.2c07987
Abstract: A method for determining combustion instability using flame structure parameters is presented. A speaker is used to provide controllable external excitation for the combustion system. The experimental object is a methane–air swirl premixed flame. The… read more here.
Keywords: structure parameters; combustion instability; flame; flame structure ... See more keywords
Effects of Mean Flow, Temperature Ratio and Area Ratio on Combustion Instability of a Dump Combustor
Sign Up to like & getrecommendations! Published in 2019 at "Combustion Science and Technology"
DOI: 10.1080/00102202.2019.1661998
Abstract: ABSTRACT This paper studies the effect of mean flow, temperature ratio and area ratio of a dump combustor on combustion instability. From an explicit transfer function representation of combustor acoustics, it is shown that mean… read more here.
Keywords: mean flow; combustion instability; combustion; area ... See more keywords
Combustion instability mitigation by magnetic fields.
Sign Up to like & getrecommendations! Published in 2017 at "Physical Review E"
DOI: 10.1103/physreve.95.063113
Abstract: The present interdisciplinary study combines electromagnetics and combustion to unveil an original and basic experiment displaying a spontaneous flame instability that is mitigated as the non-premixed sooting flame experiences a magnetic perturbation. This magnetic instability… read more here.
Keywords: combustion instability; mitigation magnetic; instability mitigation; instability ... See more keywords
Model for Combustion Instability in Hybrid Rocket Engines Burning Liquefying Fuels
Sign Up to like & getrecommendations! Published in 2023 at "AIAA Journal"
DOI: 10.2514/1.j062730
Abstract: Starting from the data measured in several static firings of two laboratory-scale hybrid rocket engines of different sizes burning gaseous oxygen with either a liquefying fuel or a pyrolyzing polymer, a mechanism for the combustion… read more here.
Keywords: combustion; hybrid rocket; rocket engines; combustion instability ... See more keywords
A Real-Time Combustion Instability Simulation with Comprehensive Thermo-Acoustic Dynamic Model
Sign Up to like & getrecommendations! Published in 2018 at "Energies"
DOI: 10.3390/en11040883
Abstract: The thermo-acoustic instability in the combustion process of a gas turbine is caused by the interaction of the heat release mechanism and the pressure perturbation. These acoustic vibrations cause fatigue failure of the combustor and… read more here.
Keywords: thermo acoustic; combustion instability; instability model; combustion ... See more keywords
Experimental Study on Dynamic Combustion Characteristics in Swirl-Stabilized Combustors
Sign Up to like & getrecommendations! Published in 2021 at "Energies"
DOI: 10.3390/en14061609
Abstract: An experimental study was performed to investigate the combustion instability characteristics of swirl-stabilized combustors. A premixed gas composed of ethylene and air was burned under various flow and geometric conditions. Experiments were conducted by changing… read more here.
Keywords: combustion instability; stabilized combustors; pressure; swirl stabilized ... See more keywords