In earlier experimental studies of the authors a previously unknown mechanism leading to flame flashback—combustion induced vortex breakdown (CIVB)—was discovered in premixed swirl burners. It exhibits the sudden formation of a recirculation bubble in vortical flows, which propagates upstream into the mixing zone after the equivalence ratio has exceeded a critical value. This bubble then stabilizes the chemical reaction and causes overheat with subsequent damage to the combustion system. Although it was shown earlier that the sudden change of the macroscopic character of the vortex flow leading to flashback can be qualitatively computed with three-dimensional as well as axisymmetric two-dimensional URANS-codes, the proper prediction of the flashback limits could not be achieved with this approach. For the first time, the paper shows quantitative predictions using a modified code with a combustion model, which covers the interaction of chemistry with vortex dynamics properly. Since the root cause for the macroscopic breakdown of the flow could not be explained on the basis of experiments or CFD results in the past, the vorticity transport equation is employed in the paper for the analysis of the source terms of the azimuthal component using the data delivered by the URANS-model. The analysis reveals that CIVB is initiated by the baroclinic torque in the flame and it is shown that CIVB is essentially a two-dimensional effect. As the most critical zone, the upstream part of the bubble was identified. The location and distribution of the heat release in this zone governs whether or not a flow field is prone to CIVB.
Skip Nav Destination
e-mail: konle@td.mw.tum.de
Article navigation
October 2007
Technical Papers
Analysis of Combustion Induced Vortex Breakdown Driven Flame Flashback in a Premix Burner With Cylindrical Mixing Zone
F. Kiesewetter,
F. Kiesewetter
Lehrstuhl für Thermodynamik,
Technische Unversität München
, D-85748 Garching, Germany
Search for other works by this author on:
M. Konle,
M. Konle
Lehrstuhl für Thermodynamik,
e-mail: konle@td.mw.tum.de
Technische Unversität München
, D-85748 Garching, Germany
Search for other works by this author on:
T. Sattelmayer
T. Sattelmayer
Lehrstuhl für Thermodynamik,
Technische Unversität München
, D-85748 Garching, Germany
Search for other works by this author on:
F. Kiesewetter
Lehrstuhl für Thermodynamik,
Technische Unversität München
, D-85748 Garching, Germany
M. Konle
Lehrstuhl für Thermodynamik,
Technische Unversität München
, D-85748 Garching, Germanye-mail: konle@td.mw.tum.de
T. Sattelmayer
Lehrstuhl für Thermodynamik,
Technische Unversität München
, D-85748 Garching, GermanyJ. Eng. Gas Turbines Power. Oct 2007, 129(4): 929-936 (8 pages)
Published Online: April 3, 2007
Article history
Received:
June 7, 2006
Revised:
April 3, 2007
Citation
Kiesewetter, F., Konle, M., and Sattelmayer, T. (April 3, 2007). "Analysis of Combustion Induced Vortex Breakdown Driven Flame Flashback in a Premix Burner With Cylindrical Mixing Zone." ASME. J. Eng. Gas Turbines Power. October 2007; 129(4): 929–936. https://doi.org/10.1115/1.2747259
Download citation file:
Get Email Alerts
Shape Optimization of an Industrial Aeroengine Combustor to reduce Thermoacoustic Instability
J. Eng. Gas Turbines Power
Dynamic Response of A Pivot-Mounted Squeeze Film Damper: Measurements and Predictions
J. Eng. Gas Turbines Power
Review of The Impact Of Hydrogen-Containing Fuels On Gas Turbine Hot-Section Materials
J. Eng. Gas Turbines Power
Effects of Lattice Orientation Angle On Tpms-Based Transpiration Cooling
J. Eng. Gas Turbines Power
Related Articles
Time Scale Model for the Prediction of the Onset of Flame Flashback Driven by Combustion Induced Vortex Breakdown
J. Eng. Gas Turbines Power (April,2010)
Numerical Study of Vortex/Flame Interaction in Actively Forced Confined Non-Premixed Jets
J. Heat Transfer (May,2000)
Unsteady Flow Structures in Radial Swirler Fed Fuel Injectors
J. Eng. Gas Turbines Power (October,2005)
Velocity Fields of Nonpremixed Bluff-Body Stabilized Flames
J. Energy Resour. Technol (June,2000)
Related Proceedings Papers
Related Chapters
The Identification of the Flame Combustion Stability by Combining Principal Component Analysis and BP Neural Network Techniques
International Conference on Mechanical Engineering and Technology (ICMET-London 2011)
Physiology of Human Power Generation
Design of Human Powered Vehicles
Cavitating Structures at Inception in Turbulent Shear Flow
Proceedings of the 10th International Symposium on Cavitation (CAV2018)