Capillary transport processes in porous materials: experiment and model
Gespeichert in:
| 1. Verfasser: | |
|---|---|
| Format: | Abschlussarbeit Buch |
| Sprache: | English |
| Veröffentlicht: |
Göttingen
Cuvillier
2010
|
| Ausgabe: | 1. Aufl. |
| Schlagworte: | |
| Online-Zugang: | Inhaltstext Inhaltsverzeichnis |
| Beschreibung: | XVII, 167 S. Ill., graph. Darst. 21 cm |
| ISBN: | 9783869555072 |
Internformat
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Datensatz im Suchindex
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IMAGE 1
CONTENTS
CONTENTS
1 INTRODUCTION 1
1.1 APPLICATIONS OF CAPILLARY TRANSPORT 2
1.1.1 PROPELLANT MANAGEMENT DEVICES 2
1.1.2 HEAT PIPES 4
1.2 EMBEDMENT OF THIS WORK IN THE FRAME OF PORENET 5
1.3 QUESTIONS AND AIMS OF THIS WORK 6
1 FUNDAMENTAL DISCUSSION OF CAPILLARY FLOW 9
2 THEORY OF CAPILLARY DOMINATED FLOWS - STATE OF THE ART 11
2.1 LITERATURE REVIEW 11
2.1.1 CAPILLARY RISE 11
2.1.2 POROUS MEDIA 13
2.2 PORE STRUCTURE PARAMETERS AND ANALOGIES 15
2.2.1 POROSITY 15
2.2.2 THE DARCY LAW AND EXTENSIONS 16
2.2.3 STATIC RADIUS 17
2.3 RADIAL CAPILLARY TRANSPORT 18
2.4 LINEAR FLOW IN A TUBE: GOVERNING EQUATIONS 19
2.4.1 MENISCUS DETAILS 19
2.4.2 MASS BALANCE 21
2.4.3 ENERGY BALANCE 22
2.4.4 LINEAR MOMENTUM BALANCE IN Z DIRECTION 22
2.4.5 GRAVITY FORCE AND INCLINATION 27
2.4.6 SIMPLIFIED LINEAR MOMENTUM BALANCE AND CORRESPONDING ASSUMPTIONS .
. 29
2.5 EQUATION FOR POROUS MEDIA USING THE DARCY LAW 30
BIBLIOGRAFISCHE INFORMATIONEN HTTP://D-NB.INFO/1007406771
DIGITALISIERT DURCH
IMAGE 2
X CONTENTS
2.6 RADIAL FLOW IN POROUS MEDIA: GOVERNING EQUATIONS 31
2.6.1 MASS BALANCE 31
2.6.2 LINEAR MOMENTUM BALANCE IN RADIAL DIRECTION 32
3 DIMENSIONLESS SCALING METHODS FOR CAPILLARY RISE 35
3.1 INTRODUCTION 35
3.2 DIMENSIONLESS SCALING 36
3.2.1 VISCOUS EFFECTS AND GRAVITY AS SCALING FORCES (INDEX F) 37
3.2.2 INERTIA AND GRAVITY AS SCALING FORCES (INDEX J) 39
3.2.3 INERTIA AND VISCOUS EFFECTS AS SCALING FORCES (INDEX *) 40
3.3 DISCUSSION 42
3.4 CONCLUSION 43
3.5 EXCURSION - APPLYING THE BUCKINGHAM IT THEOREM 44
4 THE TRANSITION FROM INERTIAL TO VISCOUS FLOW 49
4.1 INTRODUCTION 49
4.2 ANALYTICAL SOLUTIONS FOR DEFINED TIME DOMAINS 50
4.2.1 PURELY INERTIAL TIME DOMAIN 50
4.2.2 VISCO-INERTIAL TIME STAGE 50
4.2.3 PURELY VISCOUS TIME STAGE 50
4.2.4 VISCOUS AND GRAVITATIONAL TIME STAGE 51
4.3 SEPARATION OF TIME STAGES 51
4.4 DISCUSSION IN DIMENSIONLESS FORM 54
4.5 CONCLUSION 56
5 ANALYTICAL SOLUTIONS INCLUDING THE GRAVITY TERM 57
5.1 INTRODUCTION 57
5.2 VISCOUS DOMINATED FLOW 58
5.3 VISCOUS AND HYDROSTATIC DOMINATED FLOW REGIME 59
5.3.1 PRACTICAL EVALUATION OF THE LAMBERT W FUNCTION 63
5.3.2 TIME TO REACH THE EQUILIBRIUM HEIGHT 63
5.3.3 FLOW VELOCITY 64
5.3.4 DIMENSIONAL ANALYSIS 65
5.4 VALIDITY OF THE LUCAS-WASHBURN EQUATION 66
5.5 EXPERIMENTAL EVIDENCE 68
IMAGE 3
CONTENTS
5.6 EVALUATION FOR A GENERAL INITIAL CONDITION 70
5.6.1 TIME TO REACH THE EQUILIBRIUM HEIGHT 72
5.6.2 COMPARISON WITH EXPERIMENTAL RESULTS FROM LITERATURE 73
5.7 CONCLUSION 74
6 A BASIC MACROSCOPIC NUMERICAL SIMULATION WITH FLOW-3D 77
II SPECIAL INVESTIGATED CASES 81
7 LINEAR CAPILLARY RISE AND THE EFFECT OF EVAPORATION 83
7.1 INTRODUCTION 83
7.2 APPLICABLE EQUATIONS (NO EVAPORATION) 83
7.3 EXPERIMENTS 85
7.3.1 POROUS MATERIALS AND FLUID PROPERTIES 85
7.3.2 EXPERIMENTAL SETUP AND DATA ACQUISITION 88
7.3.3 DTW: CAPILLARY RISE EXPERIMENTS - HEIGHT APPROACH 90
7.3.4 DTW: CAPILLARY RISE EXPERIMENTS - MASS APPROACH 93
7.3.5 FILTER FRITS: CAPILLARY RISE EXPERIMENTS - MASS APPROACH 98
7.3.6 DTW: THE EFFECT OF EVAPORATION 101
7.4 APPLICABLE EQUATIONS (EVAPORATION) 103
7.5 ANALYTICAL SOLUTION 106
7.5.1 DIMENSIONAL ANALYSIS 107
7.5.2 TIME NEEDED TO REACH 0.99 H EQ 108
7.5.3 EVALUATION OF THE MODEL WITH EXPERIMENTAL DATA (DTW) 109
7.6 CONCLUSION 113
8 RADIAL CAPILLARY TRANSPORT 115
8.1 APPLICABLE EQUATIONS 115
8.2 EXPERIMENTAL APPARATUS 119
8.3 RESULTS 124
8.3.1 REFERENCE MEASUREMENT - LINEAR TRANSPORT 125
8.3.2 RADIAL OUTWARD WICKING 126
8.3.3 OVERVIEW ON OBTAINED WICKING CONSTANTS 131
8.3.4 DIMENSIONLESS PRESENTATION 131
8.4 DISCUSSION 132
IMAGE 4
CONTENTS
8.5 CONCLUSION 135
9 SUMMARY 137
9.1 DIMENSIONLESS SCALING METHODS 137
9.2 TRANSITION BETWEEN DIFFERENT TIME REGIMES 138
9.3 ANALYTICAL SOLUTIONS INCLUDING THE GRAVITY TERM 138
9.4 MACROSCOPICAL NUMERICAL SIMULATION 139
9.5 CAPILLARY RISE AND THE EFFECT OF EVAPORATION 140
9.6 RADIAL CAPILLARY TRANSPORT 140
9.7 PORE STRUCTURE PARAMETERS 141
APPENDIX 143
A MATHEMATICAL DERIVATIONS 143
A.I DERIVATION OF THE QUERE SOLUTION 143
A.2 DERIVATION OF THE BOSANQUET SOLUTION 144
A.3 DERIVATION OF THE IMPLICIT WASHBURN EQUATION 145
A.4 MATHEMATICAL VERIFICATION OF THE EXTENDED EQUATION 146
A.5 DERIVATION FOR A GENERAL INITIAL CONDITION 147
BIBLIOGRAPHY 149 |
| any_adam_object | 1 |
| author | Fries, Nicolas |
| author_facet | Fries, Nicolas |
| author_role | aut |
| author_sort | Fries, Nicolas |
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| bvnumber | BV037268053 |
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| dewey-full | 620.1064 |
| dewey-hundreds | 600 - Technology (Applied sciences) |
| dewey-ones | 620 - Engineering and allied operations |
| dewey-raw | 620.1064 |
| dewey-search | 620.1064 |
| dewey-sort | 3620.1064 |
| dewey-tens | 620 - Engineering and allied operations |
| discipline | Maschinenbau / Maschinenwesen |
| edition | 1. Aufl. |
| format | Thesis Book |
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| spelling | Fries, Nicolas Verfasser aut Capillary transport processes in porous materials experiment and model von Nicolas Fries 1. Aufl. Göttingen Cuvillier 2010 XVII, 167 S. Ill., graph. Darst. 21 cm txt rdacontent n rdamedia nc rdacarrier Zugl.: Bremen, Univ., Diss., 2010 Drahtgewebe (DE-588)4192824-6 gnd rswk-swf Poröser Stoff (DE-588)4046811-2 gnd rswk-swf Numerische Strömungssimulation (DE-588)4690080-9 gnd rswk-swf Raketentreibstoff (DE-588)4176904-1 gnd rswk-swf Kapillarströmung (DE-588)4336135-3 gnd rswk-swf (DE-588)4113937-9 Hochschulschrift gnd-content Kapillarströmung (DE-588)4336135-3 s Poröser Stoff (DE-588)4046811-2 s Drahtgewebe (DE-588)4192824-6 s Raketentreibstoff (DE-588)4176904-1 s Numerische Strömungssimulation (DE-588)4690080-9 s DE-604 X:MVB text/html http://deposit.dnb.de/cgi-bin/dokserv?id=3545670&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=021181066&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis |
| spellingShingle | Fries, Nicolas Capillary transport processes in porous materials experiment and model Drahtgewebe (DE-588)4192824-6 gnd Poröser Stoff (DE-588)4046811-2 gnd Numerische Strömungssimulation (DE-588)4690080-9 gnd Raketentreibstoff (DE-588)4176904-1 gnd Kapillarströmung (DE-588)4336135-3 gnd |
| subject_GND | (DE-588)4192824-6 (DE-588)4046811-2 (DE-588)4690080-9 (DE-588)4176904-1 (DE-588)4336135-3 (DE-588)4113937-9 |
| title | Capillary transport processes in porous materials experiment and model |
| title_auth | Capillary transport processes in porous materials experiment and model |
| title_exact_search | Capillary transport processes in porous materials experiment and model |
| title_full | Capillary transport processes in porous materials experiment and model von Nicolas Fries |
| title_fullStr | Capillary transport processes in porous materials experiment and model von Nicolas Fries |
| title_full_unstemmed | Capillary transport processes in porous materials experiment and model von Nicolas Fries |
| title_short | Capillary transport processes in porous materials |
| title_sort | capillary transport processes in porous materials experiment and model |
| title_sub | experiment and model |
| topic | Drahtgewebe (DE-588)4192824-6 gnd Poröser Stoff (DE-588)4046811-2 gnd Numerische Strömungssimulation (DE-588)4690080-9 gnd Raketentreibstoff (DE-588)4176904-1 gnd Kapillarströmung (DE-588)4336135-3 gnd |
| topic_facet | Drahtgewebe Poröser Stoff Numerische Strömungssimulation Raketentreibstoff Kapillarströmung Hochschulschrift |
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