Numerical modeling of noise generated by turbulent combustion:
Gespeichert in:
| 1. Verfasser: | |
|---|---|
| Format: | Abschlussarbeit Buch |
| Sprache: | English |
| Veröffentlicht: |
Aachen
Shaker
2014
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| Schriftenreihe: | Berichte aus der Verfahrenstechnik
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| Schlagworte: | |
| Online-Zugang: | Inhaltsverzeichnis |
| Beschreibung: | XVII, 234 S. Ill., graph. Darst. |
| ISBN: | 9783844025088 |
Internformat
MARC
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| 245 | 1 | 0 | |a Numerical modeling of noise generated by turbulent combustion |c Feichi Zhang |
| 264 | 1 | |a Aachen |b Shaker |c 2014 | |
| 300 | |a XVII, 234 S. |b Ill., graph. Darst. | ||
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| 490 | 0 | |a Berichte aus der Verfahrenstechnik | |
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Datensatz im Suchindex
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|---|---|
| adam_text | CONTENTS
1 MOTIVATION AND OBJECTIVES 1
1.1 GENERAL BACKGROUND 1
1.1.1 COMBUSTION
AND
ENERGY 1
1.1.2 MODELING OF TURBULENT COMBUSTION 2
1.1.3 COMBUSTION NOISE MODELING 4
1.2 OBJECTIVES OF THE WORK 5
1.3 OUTLINE 7
2 THEORETICAL BASICS 9
2.1 GOVERNING EQUATIONS 10
2.1.1 CONTINUITY EQUATION 10
2.1.2 MOMENTUM EQUATION 11
2.1.3 CONSERVATION OF SPECIES MASS 12
2.1.3.1 MOLECULAR DIFFUSION 13
2.1.3.2 CORRECTION VELOCITY 14
2.1.3.3 REACTION RATE 15
2.1.4 CONSERVATION OF ENERGY 16
2.1.5 EQUATION OF STATE 17
2.1.6 LOW-MACH NUMBER LIMIT 18
2.2 TURBULENT FLOW 19
2.2.1 CHARACTERISTICS OF TURBULENT FLOW 19
2.2.2 KOLMOGOROV S THEORY 21
2.3 COMBUSTION 23
2.3.1 REACTION KINETICS 23
2.3.1.1 FUNDAMENTAL REACTIONS 23
2.3.1.2 SIMPLIFICATION OF REACTION SYSTEM .... 24
HTTP://D-NB.INFO/1045975281
CONTENTS VII
2.3.1.3 INTRINSIC LOW-DIMENSIONAL MANIFOLD ... 25
2.3.1.4 CHEMISTRY TABULATION 26
2.3.2 PREMIXED COMBUSTION 27
2.3.2.1 INTRODUCTION 27
2.3.2.2 STRUCTURE OF LAMINAR PREMIXED FLAME . . 29
2.3.2.3 LAMINAR BURNING VELOCITY 32
2.3.2.4 CHEMICAL LENGTH AND TIME SCALE 33
2.3.2.5 FLAME-TURBULENCE INTERACTION 36
2.3.3 NON-PREMIXED COMBUSTION 38
2.3.3.1 STRUCTURE OF NON-PREMIXED FLAME 38
2.3.3.2 INFINITELY FAST CHEMISTRY 40
2.3.3.3 FINITE RATE CHEMISTRY 41
2.3.3.4 LENGTH AND TIME SCALES 43
2.3.3.5 REGIME DIAGRAM 43
2.4 NUMERICAL SOLUTION OF PDE 45
2.4.1 FINITE DIFFERENCE METHOD 46
2.4.2 FINITE VOLUME METHOD 47
2.4.3 FINITE ELEMENT METHOD 48
2.4.4 ITERATIVE SOLUTION STRATEGY 48
3 IXIRBULENCE MODELING 50
3.1 CLASSIFICATION 50
3.2 STATISTICAL MODELING OF TURBULENCE 53
3.3 REYNOLDS AVERAGED NAVIER-STOKES APPROACH 54
3.3.1 REYNOLDS STRESSES 54
3.3.2 TURBULENCE VISCOSITY MODELS 55
3.3.2.1 K-EPSILON MODELS 57
3.3.2.2 K-OMEGA MODELS 58
3.3.3 WALL FUNCTIONS 60
3.4 LARGE EDDY SIMULATION 62
3.4.1 FILTERED NAVIER-STOKES EQUATIONS 62
3.4.2 SUBGRID SCALE MODELING 65
3.4.2.1 SMAGORINSKY MODEL 65
3.4.2.2 GERMANO S DYNAMIC MODEL 66
3.4.3 NEAR WALL TREATMENT 68
3.4.4 TURBULENCE INFLOW GENERATOR 68
3.5 OTHER TURBULENCE MODELS 70
VIII CONTENTS
4 COMBUSTION MODELING 72
4.1 INTRODUCTION 72
4.2 PREMIXED COMBUSTION MODELING 74
4.2.1 EDDY-BREAK-UP MODEL 74
4.2.2 PDF MODELS 75
4.2.3 BRAY-MOSS-LIBBY MODEL 76
4.2.4 FLAME SURFACE DENSITY MODEL 77
4.2.5 TURBULENT FLAME-SPEED CLOSURE MODEL 78
4.3 NON-PREMIXED COMBUSTION MODELING 81
4.3.1 EDDY DISSIPATION MODEL 81
4.3.2 MIXTURE FRACTION AND ITS VARIANCE 82
4.3.3 FLAMELET MODEL 83
4.3.3.1 BASIC CONCEPT 83
4.3.3.2 ROLE OF SCALAR DISSIPATION RATE 84
4.3.4 CONDITIONAL MOMENT CLOSURE MODEL 85
4.3.5 PDF CLOSURE MODELS 86
4.4 SUB-MODELS 87
4.4.1 TURBULENT SCALAR TRANSPORT 88
4.4.2 FLAME STRETCH 89
4.5 LES COMBUSTION MODELING 90
4.5.1 ARTIFICIALLY THICKENED FLAME APPROACH 91
4.5.2 G-EQUATION MODEL 92
4.5.3 FLAME FRONT FILTERING 93
4.6 CONCLUDING REMARK 95
5 DEVELOPMENT OF THE UTFC COMBUSTION MODEL 96
5.1 REACTION MODEL OFSCHMID 97
5.1.1 BASIC CONCEPT 97
5.1.2 COMPARISON WITH OTHER MODELING CONCEPTS 98
5.2 LES COMBUSTION MODELING 99
5.3 CONCEPTION OF THE UTFC APPROACH 101
5.3.1 NON-PREMIXED COMBUSTION MODELING 101
5.3.2 LEAN-PREMIXED MODE 104
5.3.3 FLAME STRETCH MODELING 105
5.3.4 PRESSURE DEPENDENCY 107
5.3.4.1 TURBULENT BURNING VELOCITY 107
5.3.4.2 TURBULENT MEAN RATE 108
CONTENTS IX
5.3.5 UTFC MODEL VS. FLL MODEL 108
5.4 SUMMARY 110
6 VALIDATION OF THE UTFC COMBUSTION MODEL 113
6.1 GENERAL SETUP 113
6.2 PREMIXED COMBUSTION 114
6.2.1 EXPERIMENTAL AND NUMERICAL SETUPS 114
6.2.2 CHEMISTRY LOOK-UP TABLE 116
6.2.3 SIMULATION RESULTS 117
6.3 NON-PREMIXED COMBUSTION 122
6.3.1 EXPERIMENTAL AND NUMERICAL SETUPS 122
6.3.2 GENERATION OF THE LOOK-UP TABLE 125
6.3.3 RANS/LES APPLICATIONS 126
6.4 SWIRL-STABILIZED COMBUSTION 130
6.4.1 EXPERIMENTAL AND NUMERICAL SETUPS 130
6.4.2 LES SIMULATION OF TURBULENT REACTIVE FLOW 131
6.4.2.1 BURNER WITH A PLANAR PILOT LANCE 131
6.4.2.2 BURNER WITH A RETRACTED PILOT LANCE ... 135
6.5 PARTIALLY PREMIXED COMBUSTION 138
6.5.1 EXPERIMENTAL AND NUMERICAL SETUPS 138
6.5.2 RESULTS OF RANS/LES MODELING 140
7 THEORETICAL BASIS FOR NUMERICAL MODELING OF COMBUSTION NOISE 145
7.1 COMBUSTION NOISE 145
7.1.1 CLASSIFICATION 145
7.1.2 DIRECT COMBUSTION NOISE 146
7.2 DIRECT CALCULATION 148
7.3 HYBRID CFD/CAA METHODS 149
7.3.1 GENERAL SETUP 149
7.3.2 OVERVIEW 150
7.3.3 LIGHTHILL S ACOUSTIC ANALOGY 152
7.3.4 MODIFIED LIGHTHILL S ACOUSTIC EQUATION 154
7.3.4.1 CALCULATION OF HEAT RELEASE RATE 155
7.3.4.2 VERIFICATION 158
7.3.5 SPECTRAL MODEL 159
X
CONTENTS
8 COMPRESSIBLE LES AND CFD/CAA MODELING OF COMBUSTION NOISE 163
8.1 GENERAL SETUP FOR CFD/CAA SIMULATIONS 164
8.2 LIGHTHILL S ACOUSTIC ANALYSES 165
8.2.1 LIGHTHILL S ACOUSTIC ANALOGY VS. COMPRESSIBLE LES 165
8.2.2 CHARACTERISTICS OF NOISE SOURCES 167
8.2.3 REACTIVE VS. NON-REACTIVE FLOW 169
8.3 CAA MODELING WITH HEAT RELEASE RATE 170
8.3.1 EXPERIMENTAL AND NUMERICAL SETUPS 171
8.3.2 LES MODELING OF REACTIVE FLOW 173
8.3.3 CAA COMPUTATION OF COMBUSTION NOISE 177
8.3.3.1 SIMPLIFIED LIGHTHILL S EQUATION 177
8.3.3.2 ANALYTICAL FAR FIELD SOLUTION 180
8.4 INFLUENCE OF GRID RESOLUTION 183
8.5 SPECTRAL MODEL 188
8.5.1 COMPARISON OF SIMULATION RESULTS WITH EXPERIMENT 188
8.5.2 AFFINITY OF FLAME-TURBULENCE INTERACTION AND INDUC
TION OF COMBUSTION NOISE 189
8.6 IMPACT OF FLOW INSTABILITIES 192
8.6.1 NOISE SOURCES 192
8.6.2 FLOW INSTABILITIES AND THEIR INFLUENCE ON COMBUSTION
NOISE GENERATION 195
9 SUMMARY 198
BIBLIOGRAPHY 203
A CALCULATION OF REACTION RATES 221
B CFD SIMULATION OF TURBULENT COMBUSTION 224
B.L MATRIX FLAME 225
B.2 SANDIA H3 FLAME 226
B.3 DOUBLE-CONCENTRIC SWIRL BURNER 227
C LES/CAA MODELING OF COMBUSTION NOISE 230
C.L MATRIX FLAME 231
C.2 SANDIA H3 FLAME 232
C.3 DOUBLE-CONCENTRIC SWIRL BURNER 233
|
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| id | DE-604.BV041958114 |
| illustrated | Illustrated |
| indexdate | 2024-07-10T01:09:11Z |
| institution | BVB |
| isbn | 9783844025088 |
| language | English |
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| physical | XVII, 234 S. Ill., graph. Darst. |
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| spelling | Zhang, Feichi 1981- Verfasser (DE-588)1047134845 aut Numerical modeling of noise generated by turbulent combustion Feichi Zhang Aachen Shaker 2014 XVII, 234 S. Ill., graph. Darst. txt rdacontent n rdamedia nc rdacarrier Berichte aus der Verfahrenstechnik Zugl.: Karlsruhe, Karlsruher Inst. für Technologie, Diss., 2013 Verbrennungsgeräusch (DE-588)4675866-5 gnd rswk-swf Numerische Strömungssimulation (DE-588)4690080-9 gnd rswk-swf Turbulente Verbrennung (DE-588)4186470-0 gnd rswk-swf Strömungsakustik (DE-588)4116645-0 gnd rswk-swf (DE-588)4113937-9 Hochschulschrift gnd-content Turbulente Verbrennung (DE-588)4186470-0 s Verbrennungsgeräusch (DE-588)4675866-5 s Strömungsakustik (DE-588)4116645-0 s Numerische Strömungssimulation (DE-588)4690080-9 s DE-604 DNB Datenaustausch application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=027400992&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis |
| spellingShingle | Zhang, Feichi 1981- Numerical modeling of noise generated by turbulent combustion Verbrennungsgeräusch (DE-588)4675866-5 gnd Numerische Strömungssimulation (DE-588)4690080-9 gnd Turbulente Verbrennung (DE-588)4186470-0 gnd Strömungsakustik (DE-588)4116645-0 gnd |
| subject_GND | (DE-588)4675866-5 (DE-588)4690080-9 (DE-588)4186470-0 (DE-588)4116645-0 (DE-588)4113937-9 |
| title | Numerical modeling of noise generated by turbulent combustion |
| title_auth | Numerical modeling of noise generated by turbulent combustion |
| title_exact_search | Numerical modeling of noise generated by turbulent combustion |
| title_full | Numerical modeling of noise generated by turbulent combustion Feichi Zhang |
| title_fullStr | Numerical modeling of noise generated by turbulent combustion Feichi Zhang |
| title_full_unstemmed | Numerical modeling of noise generated by turbulent combustion Feichi Zhang |
| title_short | Numerical modeling of noise generated by turbulent combustion |
| title_sort | numerical modeling of noise generated by turbulent combustion |
| topic | Verbrennungsgeräusch (DE-588)4675866-5 gnd Numerische Strömungssimulation (DE-588)4690080-9 gnd Turbulente Verbrennung (DE-588)4186470-0 gnd Strömungsakustik (DE-588)4116645-0 gnd |
| topic_facet | Verbrennungsgeräusch Numerische Strömungssimulation Turbulente Verbrennung Strömungsakustik Hochschulschrift |
| url | http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=027400992&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA |
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