Development of a partially premixed combustion model for a diesel engine using multiple injection strategies:
Gespeichert in:
| 1. Verfasser: | |
|---|---|
| Format: | Abschlussarbeit Buch |
| Sprache: | English |
| Veröffentlicht: |
Berlin
Logos
2012
|
| Schlagworte: | |
| Online-Zugang: | Inhaltstext Inhaltsverzeichnis |
| Beschreibung: | XVI, 138 S. Ill., graph. Darst. |
| ISBN: | 9783832530938 3832530932 |
Internformat
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Datensatz im Suchindex
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IMAGE 1
CONTENTS
NOMENCLATURE V I I
1 INTRODUCTION 1
1.1 BACKGROUND 1
1.2 THESIS OBJECTIVES 5
1.3 THESIS OUTLINE 5
2 CHARACTERISATION O F DIFFERENT C O M B U S T I O N M O D E S 7
2.1 THERMODYNAMIC PROCESS 7
2.2 CHEMICAL PROCESS 10
2.3 COMBUSTION MODES 12
2.3.1 PREMIXED COMBUSTION 12
2.3.2 NON-PREMIXED COMBUSTION 13
2.3.3 PARTIALLY PREMIXED COMBUSTION 14
2.3.4 HCCI COMBUSTION 16
2.4 EXPERIMENTAL CONCEPTUAL MODELS 16
2.4.1 CONVENTIONAL DIESEL COMBUSTION 16
2.4.2 LOW TEMPERATURE COMBUSTION 18
3 T W O - P H A S E F L O W M O D E L L I N G 2 3
3.1 NUMERICAL APPROACH AND GOVERNING EQUATIONS 23
3.2 SPRAY SUB-MODELS 27
3.2.1 FUEL INJECTION 27
3.2.2 LIQUID CORE ATOMISATION 29
3.2.3 SECONDARY BREAK-UP 31
3.2.4 TURBULENT DISPERSION 34
3.2.5 SPRAY WALL IMPINGEMENT 36
3.2.6 DROPLET-DROPLET COLLISIONS 37
3.3 NOZZLE-COMBUSTION CHAMBER INTERFACE 37
3.3.1 MODEL DESCRIPTION 37
3.3.2 MODEL VALIDATION 38
3.4 EXTENSION OF SPRAY MODELLING TO THE ENGINE OPERATING MAP 41
3.4.1 MASS ADJUSTMENT 42
3.4.2 RAIL PRESSURE ADJUSTMENT 45
V
HTTP://D-NB.INFO/1019949392
IMAGE 2
CONTENTS
4 C O M B U S T I O N M O D E L L I N G 4 9
4.1 GOVERNING EQUATIONS 50
4.1.1 MODELLING THE MOLECULAR TRANSPORT TERMS 51
4.1.2 TURBULENCE MODELLING 52
4.1.3 CHEMICAL MODELS 53
4.2 DIESEL ENGINE COMBUSTION REGIMES 54
4.3 CONSERVED SCALAR APPROACH: MIXTURE FRACTION Z 58
4.4 THE LAMINAR INTERACTIVE FLAMELET CONCEPT 62
4.4.1 FLAMELET EQUATIONS 63
4.4.2 THE SCALAR DISSIPATION RATE IN THE FLAMELET CONCEPT X 66
4.4.3 CHEMISTRY MODEL 67
5 D O M I N A N T INTERACTIVE F L A M E L E T CONCEPT: D I F 6 9
5.1 MULTIPLE FLAMELETS 71
5.2 DIF THEORY 71
5.2.1 DIF MIXING MODEL 72
5.3 COMBUSTION CHAMBER TEST CASES 79
5.3.1 HIGH TEMPERATURE OXIDATION 82
5.3.2 LOW TEMPERATURE OXIDATION 86
6 E N G I N E A P P L I C A T I O N U S I N G D I F 9 1
6.1 NUMERICAL SETUP 91
6.2 MULTIPLE INJECTION IN CONVETIONAL DIESEL COMBUSTION 92
6.2.1 ENGINE VALIDATION 93
6.2.2 COMBUSTION ANALYSIS 96
6.3 PARTIALLY PREMIXED COMBUSTION 109
6.3.1 ENGINE VALIDATION 110
6.3.2 COMBUSTION ANALYSIS 112
7 CLOSURE 129
7.1 SUMMARY AND CONCLUSIONS 129
7.2 SUGGESTIONS FOR FUTURE WORK 132
BIBLIOGRAPHY 1 3 3 |
| any_adam_object | 1 |
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| dewey-full | 629.25061 |
| dewey-hundreds | 600 - Technology (Applied sciences) |
| dewey-ones | 629 - Other branches of engineering |
| dewey-raw | 629.25061 |
| dewey-search | 629.25061 |
| dewey-sort | 3629.25061 |
| dewey-tens | 620 - Engineering and allied operations |
| discipline | Maschinenbau / Maschinenwesen Verkehr / Transport |
| format | Thesis Book |
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| isbn | 9783832530938 3832530932 |
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| spelling | Thygesen, Rene Verfasser aut Development of a partially premixed combustion model for a diesel engine using multiple injection strategies vorgelegt von Rene Thygesen Berlin Logos 2012 XVI, 138 S. Ill., graph. Darst. txt rdacontent n rdamedia nc rdacarrier Zugl.: Cottbus, Techn. Univ., Diss., 2011 Flamelet-Modell (DE-588)4818596-6 gnd rswk-swf Numerische Strömungssimulation (DE-588)4690080-9 gnd rswk-swf Vormischflamme (DE-588)4188687-2 gnd rswk-swf Verbrennung (DE-588)4062656-8 gnd rswk-swf Einspritzung (DE-588)4126515-4 gnd rswk-swf Dieselmotor (DE-588)4012211-6 gnd rswk-swf (DE-588)4113937-9 Hochschulschrift gnd-content Dieselmotor (DE-588)4012211-6 s Einspritzung (DE-588)4126515-4 s Vormischflamme (DE-588)4188687-2 s Verbrennung (DE-588)4062656-8 s Flamelet-Modell (DE-588)4818596-6 s Numerische Strömungssimulation (DE-588)4690080-9 s DE-604 X:MVB text/html http://deposit.dnb.de/cgi-bin/dokserv?id=3981995&prov=M&dok_var=1&dok_ext=htm Inhaltstext DNB Datenaustausch application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=024848632&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis |
| spellingShingle | Thygesen, Rene Development of a partially premixed combustion model for a diesel engine using multiple injection strategies Flamelet-Modell (DE-588)4818596-6 gnd Numerische Strömungssimulation (DE-588)4690080-9 gnd Vormischflamme (DE-588)4188687-2 gnd Verbrennung (DE-588)4062656-8 gnd Einspritzung (DE-588)4126515-4 gnd Dieselmotor (DE-588)4012211-6 gnd |
| subject_GND | (DE-588)4818596-6 (DE-588)4690080-9 (DE-588)4188687-2 (DE-588)4062656-8 (DE-588)4126515-4 (DE-588)4012211-6 (DE-588)4113937-9 |
| title | Development of a partially premixed combustion model for a diesel engine using multiple injection strategies |
| title_auth | Development of a partially premixed combustion model for a diesel engine using multiple injection strategies |
| title_exact_search | Development of a partially premixed combustion model for a diesel engine using multiple injection strategies |
| title_full | Development of a partially premixed combustion model for a diesel engine using multiple injection strategies vorgelegt von Rene Thygesen |
| title_fullStr | Development of a partially premixed combustion model for a diesel engine using multiple injection strategies vorgelegt von Rene Thygesen |
| title_full_unstemmed | Development of a partially premixed combustion model for a diesel engine using multiple injection strategies vorgelegt von Rene Thygesen |
| title_short | Development of a partially premixed combustion model for a diesel engine using multiple injection strategies |
| title_sort | development of a partially premixed combustion model for a diesel engine using multiple injection strategies |
| topic | Flamelet-Modell (DE-588)4818596-6 gnd Numerische Strömungssimulation (DE-588)4690080-9 gnd Vormischflamme (DE-588)4188687-2 gnd Verbrennung (DE-588)4062656-8 gnd Einspritzung (DE-588)4126515-4 gnd Dieselmotor (DE-588)4012211-6 gnd |
| topic_facet | Flamelet-Modell Numerische Strömungssimulation Vormischflamme Verbrennung Einspritzung Dieselmotor Hochschulschrift |
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| work_keys_str_mv | AT thygesenrene developmentofapartiallypremixedcombustionmodelforadieselengineusingmultipleinjectionstrategies |