Thermoacoustic Instability in Combustors
AS Morgans, D Yang - Annual Review of Fluid Mechanics, 2024 - annualreviews.org
Thermoacoustic instability is a flow instability that arises due to a two-way coupling between
acoustic waves and unsteady heat release rate. It can cause damaging, large-amplitude …
acoustic waves and unsteady heat release rate. It can cause damaging, large-amplitude …
NOx pathways in lean partially premixed swirling H2‐air turbulent flame
Today's climate and energy challenges are driving the use of decarbonised and renewable
alternative fuels in power generation and transportation. Hydrogen as a fuel is a good …
alternative fuels in power generation and transportation. Hydrogen as a fuel is a good …
On the impact of H2-enrichment on flame structure and combustion dynamics of a lean partially-premixed turbulent swirling flame
Abstract Large Eddy Simulation (LES) with Conjugate Heat Transfer (CHT) is used to
analyze the impact of H 2-enrichment on the flame structure and combustion dynamics of a …
analyze the impact of H 2-enrichment on the flame structure and combustion dynamics of a …
Wall heat loss effect on the emission characteristics of ammonia swirling flames in a model gas turbine combustor
Ammonia (NH 3) combustion is regarded as one of the most promising solutions to realize
zero CO 2 emission. However, its low reactivity, low heat release result in a strong thermal …
zero CO 2 emission. However, its low reactivity, low heat release result in a strong thermal …
Experimental and numerical investigations of forced response of multi-element lean-premixed hydrogen flames
Understanding the distinctive thermoacoustic properties of multi-element lean-premixed
hydrogen flames is crucial for the development of hydrogen-capable gas turbines. Extending …
hydrogen flames is crucial for the development of hydrogen-capable gas turbines. Extending …
Large eddy simulations of mean pressure and H2 addition effects on the stabilization and dynamics of a partially-premixed swirled-stabilized methane flame
This work analyzes pressure and hydrogen enrichment effects on the stabilization and
combustion dynamics of a partially-premixed swirled-stabilized methane flame operated at …
combustion dynamics of a partially-premixed swirled-stabilized methane flame operated at …
Methodology for optimally designing firewalls in hydrogen refueling stations
The safety of hydrogen directly affects the use of hydrogen refueling stations and public
acceptance of hydrogen energy. This paper presented a methodology for the optimal design …
acceptance of hydrogen energy. This paper presented a methodology for the optimal design …
[HTML][HTML] Impact of H2-enrichment on the response of a partially premixed CH4–air flame to velocity and equivalence ratio fluctuations
The dynamics of hydrogen-enriched partially premixed methane–air flames are investigated,
focusing on the frequency response to velocity and equivalence ratio fluctuations. Large …
focusing on the frequency response to velocity and equivalence ratio fluctuations. Large …
LES-based prediction of technically premixed flame dynamics and comparison with perfectly premixed mode
The present study combines Large Eddy Simulation (LES) with System Identification (SI) to
determine the Flame Transfer Functions (FTFs) of technically premixed flames that respond …
determine the Flame Transfer Functions (FTFs) of technically premixed flames that respond …
Incompressible versus compressible large eddy simulation for the identification of premixed flame dynamics
The present work compares the respective advantages and disadvantages of compressible
and incompressible computational fluid dynamics (CFD) formulations when used for the …
and incompressible computational fluid dynamics (CFD) formulations when used for the …