Scale Adaptive Simulation of a thermoacoustic instability in a partially premixed lean swirl combustor

JM Lourier, M Stöhr, B Noll, S Werner, A Fiolitakis - Combustion and Flame, 2017 - Elsevier
The thermoacoustic oscillation of a turbulent, swirl-stabilized, partially premixed flame in the
PRECCINSTA gas turbine model combustor is analyzed by means of a Scale Adaptive …

An implicit splitting scheme with characteristic boundary conditions for compressible reactive flows on unstructured grids

M Pries, A Fiolitakis, P Gerlinger - Journal of Computational and Applied …, 2024 - Elsevier
The computation of combustion instabilities requires efficient numerical solvers. For low
Mach number compressible flows splitting schemes provide an adequate family of solution …

A selective fast fourier filtering approach applied to high frequency thermoacoustic instability analysis

F Grimm, JM Lourier, O Lammel… - … Expo: Power for …, 2017 - asmedigitalcollection.asme.org
A method for selective, frequency-resolved analysis of spatially distributed, time-coherent
data is introduced. It relies on filtering of Fourier-processed signals with periodic structures …

Influence of turbulence-chemistry interaction modeling on the structure and the stability of a swirl-stabilized flame

JM Lourier, C Eberle, B Noll… - … Expo: Power for …, 2015 - asmedigitalcollection.asme.org
Scale Adaptive Simulations (SAS) of the swirl-stabilized flame of the PRECCINSTA burner
are presented. Within the computations a large share of velocity fluctuations as well as …

Numerical and experimental investigation of self excited thermoacoustic instabilities in a lean, partially premixed swirl flame

M Pries, A Fiolitakis, R Hadef, P Gerlinger - AIAA SciTech 2024 Forum, 2024 - arc.aiaa.org
The computation of low Mach number self-excited thermoacoustic instabilities using large
eddy simulations requires an efficient compressible, multi-species, reacting flow solver …

Impact of Combustion and Outflow Modeling on Self-Excited Thermoacoustic Instabilities in a Lean Premixed Swirl-Flame

M Pries, A Fiolitakis, P Gerlinger - AIAA SCITECH 2025 Forum, 2025 - arc.aiaa.org
The computation of self-excited thermoacoustic instabilities remains a challenging task.
Reasons are manifold as the problem renders itself as a complex interplay of mixing …

[PDF][PDF] Numerische Simulation von thermoakustischen Instabilitäten in Gasturbinenbrennkammern mithilfe von Impedanzrandbedingungen

JM Lourier - 2016 - elib.dlr.de
VT-Forschungsbericht 2016-01 Page 1 Numerische Simulation von thermoakustischen
Instabilitäten in Gasturbinenbrennkammern mithilfe von Impedanzrandbedingungen VT-Forschungsbericht …

Broadband combustion noise simulation of the PRECCINSTA burner based on stochastic sound sources

F Grimm, D Ohno, B Noll… - … for Gas Turbines …, 2017 - asmedigitalcollection.asme.org
Combustion noise in the laboratory scale PRECCINSTA (prediction and control of
combustion instabilities in industrial gas turbines) burner is simulated with a new, robust …

Computational Modeling of Ignition and Premixed Flame Propagation Initiated by a Pre-chamber Turbulent Jet

U Jain - 2023 - hammer.purdue.edu
Addressing the pressing need for reduced carbon emissions, Turbulent Jet Ignition (TJI)
emerges as a promising technology for ultra-lean combustion, offering enhanced thermal …

[PDF][PDF] Effiziente, stochastische Vorhersage von turbulentem Brennkammerlärm

F Grimm - 2017 - elib.dlr.de
5.2. 8 Identifikation der Beiträge zum Strahlflammen-Lärmspektrum mithilfe der
semianalytischen Analyse aus Abbildung 5.2. 7..................... 106 5.3. 1 Beispielhafte …