Numerical Simulation of the Dynamics of Turbulent Swirling Flames

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Identification of Flame Transfer Functions using LES/SI Figure 5.13: Normalized spatial heat release distribution for 50 kW: (a) OH chemiluminescence from experiments, (b) Averaged LES at nonadiabatic conditions, and (c) at adiabatic conditions. Lineof-sight integrated heat release for simulations. Dump plane of combustor at axial position = 0 m. rious acoustic wave reflections [23]. This boundary condition is not applied as it is not available in the version of AVBP (6.0) used in this study. 80
5.3 Influence of Variation in Power Rating on the Flame Transfer Function Figure 5.14: Area normalized axial heat release distribution for 50 kW. Figure 5.15: Transversal mode on combustion chamber for 50 kW. Contours of rms pressure at cross plane 10mm downstream the burner exit 5.3.2 Comparison of Identified and Experimental Flame Transfer Function with 50 kW To perform the identification of the FTF, the excitation is initially carried out using the same signal of the 30 kW case, but scaled for 50 kW with an amplitude of 6.5% of the inlet mean velocity. The FTF identified from a single time 81
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Technische Universität München In
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gas turbine combustion during my in
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Zusammenfassung Die Dynamik von per
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CONTENTS 3.3.3 Influence of Swirler
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CONTENTS A.7.4 Inlet . . . . . . .
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LIST OF FIGURES 3.2 Scheme of deter
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LIST OF FIGURES 5.21 Instantaneous
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LIST OF FIGURES 5.47 FTFs from expe
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List of Tables 2.1 LES Combustion M
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Nomenclature R i j Two-point veloci
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Nomenclature M MF O prop r stoich S
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xxiv Nomenclature
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Introduction Figure 1.1: Left: Worl
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Introduction Figure 1.4: Illustrati
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Introduction fluctuations of the he
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Introduction tor walls, increasing
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Turbulent Reacting Flows Figure 2.1
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Turbulent Reacting Flows time scale
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Turbulent Reacting Flows instantane
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Turbulent Reacting Flows as the pro
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Turbulent Reacting Flows where s L
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Turbulent Reacting Flows 2.4.2 Fund
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Turbulent Reacting Flows 2.4.2.1 Mo
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Turbulent Reacting Flows Some of th
Page 54 and 55: Turbulent Reacting Flows Table 2.1:
Page 56 and 57: Turbulent Reacting Flows port equat
Page 58 and 59: 3 Response of Premixed Flames to Ve
Page 60 and 61: Response of Premixed Flames to Velo
Page 76 and 77: System Identification put, the heat
Page 78 and 79: System Identification Figure 4.2: U
Page 80 and 81: System Identification 4.2 The Wiene
Page 82 and 83: System Identification Figure 4.3: S
Page 84 and 85: System Identification 4.3 The LES/S
Page 86 and 87: System Identification A flow chart
Page 88 and 89: Identification of Flame Transfer Fu
Page 146 and 147: 6 Stability Analysis with Low-Order
Page 148 and 149: Stability Analysis with Low-Order N
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Stability Analysis with Low-Order N
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Summary and Conclusions series gene
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Summary and Conclusions • The ide
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Outlook tion. The system identifica
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BIBLIOGRAPHY [8] H. Büchner, C. Hi
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BIBLIOGRAPHY [28] P.J. Colucci, F.A
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BIBLIOGRAPHY [48] D. Fanaca. Influe
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BIBLIOGRAPHY [65] M. Germano, U. Pi
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BIBLIOGRAPHY [83] A. Huber. Impact
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BIBLIOGRAPHY [102] T. Komarek. Priv
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BIBLIOGRAPHY [122] L. Ljung. System
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BIBLIOGRAPHY [141] P. Palies, T. Sc
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BIBLIOGRAPHY [163] S.B. Pope. Compu
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BIBLIOGRAPHY [183] F. Selimefendigi
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BIBLIOGRAPHY [200] L. Tay Wo Chong,
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BIBLIOGRAPHY [223] B.T. Zinn and T.
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Appendices Figure A.1: Evaluation o
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Appendices Table A.1: One Step Reac
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Appendices and isotropic, the energ
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Appendices Figure A.2: DRBS Input s
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Appendices (a) The flow is homentro
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Appendices ends of the duct, the fo
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Appendices Figure A.6: Scheme for f
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Appendices Expressing Eqs. (A.59) a
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Appendices Figure A.7: Scattering M
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Appendices ping [45] is used. The i
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Appendices 4. Load in TECPLOT only
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Numerical Simulation of the Dynamics of Turbulent Swirling Flames

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