Understanding the role of flow dynamics in thermoacoustic combustion instability

J O'Connor - Proceedings of the Combustion Institute, 2023 - Elsevier
Thermoacoustic combustion instability is one of the most challenging operational issues in
several high-performance, low-emissions combustion technologies, including gas turbines …

The Influence of the Confinement Ratio on the Precessing Vortex Core Dynamics in a Counter-Rotating Dual Swirler

S Link, K Dave, G Eitelberg… - … Expo: Power for …, 2023 - asmedigitalcollection.asme.org
Lean-premixed swirl-stabilized combustion is a successful strategy to reduce pollutant
emissions. However, these combustion systems are especially prone to thermoacoustic …

Experimental Investigation on the Effect of Nozzle Bluntness Thickness on the Combustion Characteristics of a High-Speed Parallel Jet Mild Combustor

N Yang, Y Xiong, Z Liu, X Xu - … Expo: Power for …, 2024 - asmedigitalcollection.asme.org
The safe, stable, and low-emission combustion of high-content hydrogen and pure hydrogen
fuels is a crucial aspect of the gas turbine combustion system for achieving carbon-neutral …

Experimental and numerical investigation of radial-radial swirlers under different confinement conditions

F Kıyıcı - 2022 - open.metu.edu.tr
In modern gas turbine combustors, flame stabilization is achieved by use of swirlers which
introduce swirl component to the flow field. Swirlers are inherently sensitive to flow and …

Characterization of Valved-Pulsejet and Single-Element Lean Direct Injection Combustion Systems

M Ghulam - 2024 - rave.ohiolink.edu
The pulsejet study investigates twelve configurations of the self-aspirated valved pulsejet,
focusing on its operational mechanism. It begins by characterizing the engine's acoustic field …

[PDF][PDF] Swirl number effects on the blowoff limits of swirl-stabilized flames

I Rivera, C Birkbeck, C Torres, N Subasic, JR Camacho… - 2024 - sites.psu.edu
This work focused on understanding how swirl influences the blowoff limit and process in
lean-premixed, swirl-stabilized flames. Two initial equivalence ratios (Ф0= 0.8 and 1.0) were …