Results 71 to 80 of about 255 (174)

Exploring liquid fuel combustion dynamics in a swirl burner using dynamic mode decomposition

Engineering Applications of Computational Fluid Mechanics
Aero gas turbine engine combustors are transitioning from traditional Rich-Quench-Lean (RQL) staging to Lean Premixed Prevaporized (LPP) operation to reduce harmful NOx emissions and improve combustion efficiency.
Alireza Ghasemi, Jim B. W. Kok
doaj   +1 more source

Time Series and Spectral Analysis of Thermoacoustic Oscillations for Propane-Oxyfuel Combustion in a Swirl-Stabilized, Nonpremixed Combustor. [PDF]

ACS Omega, 2023
Talal Q, Abubakar Z, Shakeel MR, AlSwat MS, Mokheimer EMA.   +4 more
europepmc   +1 more source

Analytical modeling of thermoacoustic instability influences in gas turbine combustors: A detailed parameter sensitivity analysis

Case Studies in Thermal Engineering
In this study, the effects of various system parameters on combustion instability were numerically identified through a network-based thermoacoustic model using the concept of a transfer function.
Seonyeong Kim, Daesik Kim
doaj   +1 more source

Modeling and control of thermoacoustic instabilities

, 2003
This work deals with modeling and control of thermoacoustic combustion instabilities in lean premixed combustion systems. Because of the complex interactions present in thermoacoustic systems, a network modeling approach is used. The model of each network element or subsystem is obtained analytically, numerically, or by making use of experimental ...
openaire   +1 more source

Analysis of Combustion Instability of Methane-Air Premixed Swirling Flame Based on OH-PLIF Measurements. [PDF]

ACS Omega, 2023
Deng K, Xue C, Liu Z, Hu J, Zhong Y.
europepmc   +1 more source

Synchronization of Low-Frequency Thermoacoustic Oscillation in Can-Annular Combustor via Compressor Combustion Casing

Energies
Thermoacoustic instability remains an important challenge in gas turbines. In can-annular combustors, cross-talk effects can lead to complex collective dynamics.
Yichen Wang, Guojun Sun, Zhiqian Liu, Yupeng Qin, Jiefeng Geng, Jikang Wang, Guogang Shu, Xuan Lv   +7 more
doaj   +1 more source

Steady-state statistics, emergent patterns and intermittent energy transfer in a ring of oscillators. [PDF]

Nonlinear Dyn, 2022
Pedergnana T, Noiray N.
europepmc   +1 more source

All-optical light-induced thermoacoustic spectroscopy for remote and non-contact gas sensing. [PDF]

Photoacoustics, 2022
Pan Y, Zhao J, Lu P, Sima C, Zhang W, Fu L, Liu D, Zhang J, Wu H, Dong L.   +9 more
europepmc   +1 more source

Review of acoustic field effects on flame dynamics and combustion applications

International Journal of Coal Science & Technology
Acoustic-flame coupling technology is an interdisciplinary frontier field investigating the complex interactions between sound waves and combustion. Generally, the acoustic field can be divided into two modes based on its relative position to the flame ...
Zhiwei Su, Yaoyao Ying, Dong Liu
doaj   +1 more source

Study on thermoacoustic instabilities in an aircraft engine combustor using 1D network model

Case Studies in Thermal Engineering
The purpose of this study was to evaluate the combustion instability characteristics of target aircraft combustors under development using network thermoacoustic (TA) models.
Juchan Son, Seungchai Jung, Shaun Kim, Daesik Kim   +3 more
doaj   +1 more source