... is approached utilizing the current advances in generative artificial intelligence. We train an invertible neural network (INN) on an expandable database of geometrically parameterized combustor designs with simulated performance labels. Utilizing the INN in its inverse direction, multiple design proposals...

... transformed quantity References [1] Stow , S. R. , and Dowling , A. P. , 2001 , “ Thermoacoustic Oscillations in an Annular Combustor ,” ASME Paper No. 2001-GT-0037. 10.1115/2001-GT-0037 [2] Nicoud , F. , Benoit , L. , Sensiau , C. , and Poinsot , T. , 2007...

...Wing Yin Kwong; Adam M. Steinberg This paper describes the coupled flow and flame dynamics during blowoff and reattachment events in a combustor consisting of a linear array of five interacting nozzles using 10 kHz repetition-rate OH planar laser-induced fluorescence and stereoscopic particle image...

... and its characterization are discussed. Then the combustor test rig, the OH-chemiluminescence imaging, and the gaseous emissions analysis are introduced. The section about the experimental results shows first results for the reforming process, that is the syngas production, and then for the combustion...

...Kexin Liu; Phill Hubbard; Suresh Sadasivuni; Ghenadie Bulat Extension of gas fuel flexibility of a current production SGT-400 industrial gas turbine combustor system is reported in this paper. A SGT-400 engine with hybrid combustion system configuration to meet a customer's specific requirements...

...G. Ghirardo; C. Di Giovine; J. P. Moeck; M. R. Bothien Can-annular combustors consist of a set of independent cans, connected on the upstream side to the combustor plenum and on the downstream side to the turbine inlet, where a transition duct links the round geometry of each can with the annular...

.... e24331 . 10.1371/journal.pone.0024331 [41] Unni , V. R. , and Sujith , R. I. , 2015 , “ Multifractal Characteristics of Combustor Dynamics Close to Lean Blowout ,” J. Fluid Mech. , 784 , pp. 30 – 50 . 10.1017/jfm.2015.567 DFA = detrended fluctuation analysis f...

... Procedia , 105 , pp. 1665 – 1670 . 10.1016/j.egypro.2017.03.543 [5] Abagnale , C. , Cameretti , M. C. , De Robbio , R. , and Tuccillo , R. , 2016 , “ CFD Study of a MGT Combustor Supplied With Syngas ,” Energy Procedia , 101 , pp. 933 – 940 . 10.1016/j.egypro.2016.11.118 [6...

... Parametric Validation ,” Proc. Combust. Inst. , 27 ( 1 ), pp. 295 – 304 . 10.1016/S0082-0784(98)80416-5 [45] Cavaliere , D. E. , 2013 , “ Blow-Off in Gas Turbine Combustors ,” Ph.D. thesis , University of Cambridge, Cambridge, UK. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.648548...

...Daesik Kim; Seungchai Jung; Heeho Park The side-wall cooling liner in a gas turbine combustor serves main purposes—heat transfer and emission control. Additionally, it functions as a passive damper to attenuate thermoacoustic instabilities. The perforations in the liner mainly convert acoustic...

...Chunyan Li; Suhui Li; Xu Cheng; Min Zhu Pilot flames have been widely used for flame stabilization in low-emission gas turbine combustors. Effects of pilot flame on dynamic instabilities, however, are not well understood. In this work, the dynamic interactions between main and pilot flames...

..., the instantaneous flame location can vary in thickness and location due to heat losses or imperfect mixing. Postflame phenomena (slow CO oxidation or thermal NO production) can be expected to be significantly influenced by turbulent eddy structures. Since typical gas turbine combustor calculations require insight...

...Viktor Józsa; Attila Kun-Balog Stringent emissions standards for NO x and carbon monoxide (CO) prompt lean combustor development. With this motivation, combustion stability issues emerge since the desired operating point approaches the lean blowout limit. In this paper, an atmospheric, 15 kW lean...

...Nicolai V. Stadlmair; Tobias Hummel; Thomas Sattelmayer In this paper, we present a method to determine the quantitative stability level of a lean-premixed combustor from dynamic pressure data. Specifically, we make use of the autocorrelation function of the dynamic pressure signal acquired...

... September 5, 2017; final manuscript received March 19, 2018; published online June 25, 2018. Assoc. Editor: Joseph Zelina. 05 09 2017 19 03 2018 Combustion Combustors Computational fluid dynamics Modeling Swirling Thermophysical Turbulence Turbulent Jet stirred reactors...

... quantification needs. Yet, phenomenological descriptions of soot formation, containing key ingredients for soot modeling exist in the literature, such as the well-known Leung et al. model (Combust Flame 1991). However, when blindly applied to aeronautical combustors for different operating conditions, this model...

... Processes ,” Prog. Energy Combust. Sci. , 34 ( 3 ), pp. 351 – 376 . 10.1016/j.pecs.2007.09.001 [22] Miranda , J. , Polanka , M. D. , and Simmons , R. J. , 2014 , “ The Use of an Ultra-Compact Combustor as an Inter-Turbine Burner for Improved Engine Performance ,” AIAA Paper No. 2014...

...Seungtaek Oh; Jaehyeon Kim; Yongmo Kim In this study, new methodologies are introduced to analyze combustion instability in a lab-scale swirled combustor. First, with the help of radial basis function neural network (RBFNN), the flame describing function (FDF) is effectively modeled from a limited...

...Suhyeon Park; David Gomez-Ramirez; Siddhartha Gadiraju; Sandeep Kedukodi; Srinath V. Ekkad; Hee-Koo Moon; Yong Kim; Ram Srinivasan In this study, we provide detailed wall heat flux measurements and flow details for reacting flow conditions in a model combustor. Heat transfer measurements inside...

... Effects on Periodic Flashback in a Lean Premixed Prevaporized Gas Turbine Combustor ,” Proc. Combust. Inst. , 32 ( 2 ), pp. 2901 – 2908 . 10.1016/j.proci.2008.06.155 [7] Dhanuka , S. K. , Temme , J. E. , and Driscoll , J. F. , 2011 , “ Lean-Limit Combustion Instabilities of a Lean...