On the simulation of premixed combustion taking into account variable mixtures:
Gespeichert in:
| Beteilige Person: | |
|---|---|
| Format: | Hochschulschrift/Dissertation Buch |
| Sprache: | Englisch |
| Veröffentlicht: |
Düsseldorf
VDI-Verl.
2007
|
| Ausgabe: | Als Ms. gedr. |
| Schriftenreihe: | Fortschrittberichte VDI
Reihe 6, Energietechnik ; 563 |
| Schlagwörter: | |
| Links: | http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=016439991&sequence=000002&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA |
| Umfang: | X, 142 S. Ill., graph. Darst. 21 cm |
| ISBN: | 9783183563067 |
Internformat
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| 100 | 1 | |a Freitag, Martin |e Verfasser |4 aut | |
| 245 | 1 | 0 | |a On the simulation of premixed combustion taking into account variable mixtures |c Martin Freitag |
| 250 | |a Als Ms. gedr. | ||
| 264 | 1 | |a Düsseldorf |b VDI-Verl. |c 2007 | |
| 300 | |a X, 142 S. |b Ill., graph. Darst. |c 21 cm | ||
| 336 | |b txt |2 rdacontent | ||
| 337 | |b n |2 rdamedia | ||
| 338 | |b nc |2 rdacarrier | ||
| 490 | 1 | |a Fortschrittberichte VDI : Reihe 6, Energietechnik |v 563 | |
| 502 | |a Zugl.: Darmstadt, Techn. Univ., Diss., 2007 | ||
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Datensatz im Suchindex
| _version_ | 1819340392525463552 |
|---|---|
| adam_text | Contents
1 Introduction 1
1.1 State of Knowledge 2
1.2 Perspective of this Work 2
1.3 Outline 3
2 Theoretical Background 4
2.1 Building a Convention 4
2.2 Newtonian Fluids 5
2.2.1 Sealars and Enthalpy 6
2.3 The Structure of Turbulence 8
2.3.1 Character of Turbulence 9
2.3.2 Transition and Dissipation 10
2.3.3 The Energy Cascade 12
2.4 Swirl Flows 12
2.4.1 Swirl Intensity 13
2.4.2 Vortex Breakdown 14
2.4.3 Precessing Vortex Cores 14
2.4.4 Influence of Chemical Reaction 15
2.5 Combustion 16
2.5.1 Chemical Reaction 16
2.5.2 Non-Premixed Combustion 17
2.5.3 Premixed Combustion 20
3 Modeling Approaches 29
3.1 Turbulence Closures 29
3.1.1 Direct Simulation 29
3.1.2 Spatially Filtered Simulation 30
3.1.3 Temporal or Ensemble Averaged Simulation 33
3.2 Premixed Combustion Modeling 34
3.2.1 Eddy Break Up Model 35
3.2.2 Artificially Thickened Flame Model (ATF) 35
3.2.3 Bray Moss Libby Model (BML) 36
3.2.4 Flame Surface Density Model (FSD) 37
3.2.5 The G-equation Model 38
3.2.6 Pdf Transport Equation Model 41
3.2.7 Linear Eddy Model (LEM) 41
3.2.8 Conditional Moment Closure (CMC) 42
3.2.9 Marker Field Method 42
v
4 Numerical Treatment 44
4.1 Momentum and Scalar Transport 44
4.1.1 Boundary Conditions 51
4.1.2 The Pressure Correction 52
4.1.3 Flow Chart of One Time Step 53
4.2 The Level-Set Transport 54
4.2.1 Tracing the Interface 54
4.2.2 Temporal Advancement 55
4.2.3 The Laminar Flame Speed 56
4.2.4 The Curvature Term 56
4.2.5 The Convective Transport 57
4.2.6 The Strain Term 58
4.3 Conservation of the Level-Set 59
4.3.1 The Reinitialization Procedure 59
4.3.2 The Extension Velocity Method 62
4.4 Remarks on Parallelization 65
4.4.1 Parallelization of the G-equation 66
4.5 Summary of Enhancements 66
4.6 Validation of the Level-Set Transport 67
4.6.1 Test Case Description 68
4.6.2 Interpretation of Test A 69
4.6.3 Analysis of Test B 69
4.6.4 Summarization 70
5 Füll Scale Test Cases 71
5.1 After Burner Channel - ORACLES 71
5.1.1 Experimental Setup 72
5.1.2 Outline of the Investigated Cases 73
5.1.3 Isothermal Variations 74
5.1.4 ATF Simulation 79
5.1.5 G-equation Simulation 85
5.1.6 The Turbulent Flame Speed 92
5.1.7 Overall Conclusions 93
5.2 Isothermal DNS of a Strongly Swirled Flow 95
5.2.1 Substantiation for DNS Studies 95
5.2.2 Setup and Measurement Technique 96
5.2.3 Numerical Specification of the DNS 97
5.2.4 Results and Discussion 98
5.2.5 Conclusions 107
5.3 LES of a Premixed Swirling Flame 1°8
5.3.1 Experimental Setup 1°9
5.3.2 Regime Diagram Classification 1°9
5.3.3 Modeling Requirements 109
5.3.4 The Turbulent Flame Speed 11X
5.3.5 Computational Domain 1U
5.3.6 Results for the Reacting Flow l:11
vi
5.3.7 Variation of the Turbulent Flame Speed Model 114
5.3.8 Conclusions and Outlook 115
6 Conclusion 117
A Assessment of the Numerical Schemc 119
A.l Theoretical Derivations 119
A.2 Quantification of the Scaling Exponents 121
A.3 Application of the Method 122
A.3.1 Discussion of the Separated Error Contributions 123
A.4 Application to a Channel Flow 123
A.4.1 Discussion of the Results 124
A.5 Conclusions 127
Bibliography 127
vü
|
| any_adam_object | 1 |
| author | Freitag, Martin |
| author_facet | Freitag, Martin |
| author_role | aut |
| author_sort | Freitag, Martin |
| author_variant | m f mf |
| building | Verbundindex |
| bvnumber | BV023254685 |
| classification_rvk | UR 5800 VE 6007 ZP 3270 |
| ctrlnum | (OCoLC)184686615 (DE-599)BVBBV023254685 |
| dewey-full | 660.29610113 |
| dewey-hundreds | 600 - Technology (Applied sciences) |
| dewey-ones | 660 - Chemical engineering |
| dewey-raw | 660.29610113 |
| dewey-search | 660.29610113 |
| dewey-sort | 3660.29610113 |
| dewey-tens | 660 - Chemical engineering |
| discipline | Chemie / Pharmazie Physik Energietechnik |
| edition | Als Ms. gedr. |
| format | Thesis Book |
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| genre_facet | Hochschulschrift |
| id | DE-604.BV023254685 |
| illustrated | Illustrated |
| indexdate | 2024-12-20T13:11:47Z |
| institution | BVB |
| isbn | 9783183563067 |
| language | English |
| oai_aleph_id | oai:aleph.bib-bvb.de:BVB01-016439991 |
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| owner_facet | DE-210 DE-634 DE-83 DE-862 DE-BY-FWS |
| physical | X, 142 S. Ill., graph. Darst. 21 cm |
| publishDate | 2007 |
| publishDateSearch | 2007 |
| publishDateSort | 2007 |
| publisher | VDI-Verl. |
| record_format | marc |
| series | Fortschrittberichte VDI |
| series2 | Fortschrittberichte VDI : Reihe 6, Energietechnik |
| spellingShingle | Freitag, Martin On the simulation of premixed combustion taking into account variable mixtures Fortschrittberichte VDI Direkte numerische Simulation (DE-588)4494453-6 gnd Turbulente Verbrennung (DE-588)4186470-0 gnd LES Strömung (DE-588)4315616-2 gnd Numerische Strömungssimulation (DE-588)4690080-9 gnd Vormischflamme (DE-588)4188687-2 gnd Drallbrenner (DE-588)4754278-0 gnd |
| subject_GND | (DE-588)4494453-6 (DE-588)4186470-0 (DE-588)4315616-2 (DE-588)4690080-9 (DE-588)4188687-2 (DE-588)4754278-0 (DE-588)4113937-9 |
| title | On the simulation of premixed combustion taking into account variable mixtures |
| title_auth | On the simulation of premixed combustion taking into account variable mixtures |
| title_exact_search | On the simulation of premixed combustion taking into account variable mixtures |
| title_full | On the simulation of premixed combustion taking into account variable mixtures Martin Freitag |
| title_fullStr | On the simulation of premixed combustion taking into account variable mixtures Martin Freitag |
| title_full_unstemmed | On the simulation of premixed combustion taking into account variable mixtures Martin Freitag |
| title_short | On the simulation of premixed combustion taking into account variable mixtures |
| title_sort | on the simulation of premixed combustion taking into account variable mixtures |
| topic | Direkte numerische Simulation (DE-588)4494453-6 gnd Turbulente Verbrennung (DE-588)4186470-0 gnd LES Strömung (DE-588)4315616-2 gnd Numerische Strömungssimulation (DE-588)4690080-9 gnd Vormischflamme (DE-588)4188687-2 gnd Drallbrenner (DE-588)4754278-0 gnd |
| topic_facet | Direkte numerische Simulation Turbulente Verbrennung LES Strömung Numerische Strömungssimulation Vormischflamme Drallbrenner Hochschulschrift |
| url | http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=016439991&sequence=000002&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA |
| volume_link | (DE-604)BV001897068 |
| work_keys_str_mv | AT freitagmartin onthesimulationofpremixedcombustiontakingintoaccountvariablemixtures |