Wall turbulence control:
Gespeichert in:
| 1. Verfasser: | |
|---|---|
| Format: | Buch |
| Sprache: | English |
| Veröffentlicht: |
London, UK
ISTE
2017
Hoboken, NJ, USA Wiley 2017 |
| Schriftenreihe: | Fluid mechanics series
|
| Schlagworte: | |
| Online-Zugang: | Inhaltsverzeichnis Klappentext |
| Beschreibung: | xii, 186 Seiten Illustrationen, Diagramme |
| ISBN: | 9781848215597 |
Internformat
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Datensatz im Suchindex
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| adam_text | Contents
Preface............................................................ vii
Notations............................................................. ix
Chapter 1. General Points.............................................. 1
1.1. Introduction................................................... 1
1.2. Tools to analyze and develop control strategies........... 2
1.2.1. Numerical simulations...................................... 2
1.2.2. Sensors.................................................... 3
1.2.3. Actuators............................................... 20
Chapter 2. Summary of the Main
Characteristics of Waif Turbulence.................................... 23
2.1. Introduction.................................................. 23
2.2. General equations............................................. 23
2.2.1. Eulerian relations........................................ 24
2.3. Notations..................................................... 25
2.4. Reynolds equations............................................ 26
2.5. Exact relations and F1K identity.............................. 27
2.6. Equations for a turbulent boundary layer..................... 32
2.7. Scales in a turbulent wall flow............................... 34
2.8. Turbulent viscosity closures.................................. 35
2.9. Turbulent intensities of the velocity components.............. 47
2.10. Vorticity and near wall coherent structures.................. 51
vi Wail Turbulence Control
Chapter 3. Passive Control.......................................... 65
3.1. Introduction................................................ 65
3.2. Large eddy (outer layer) breakup devices,
LEBUs (OLDs)..................................................... 66
3.2.1. General. ............................................... 66
3.2.2. Alteration of the inner structure
by outer layer devices......................................... 67
3.3. Riblets..................................................... 72
3.3.1. General................................................. 22
3.3.2. Effect of the riblets on the fine structure
of wall turbulence. ........................................... 76
3.3.3. Effect of the protrusion height......................... 84
3.4. Superhydrophobic surfaces................................... 93
Chapter 4. Active Control........................................... 99
4.1. Introduction................................................ 99
4.2. Local blowing.............................................. 100
4.3. Ad-hoc control............................................. 107
4.4. Transverse wall oscillations..............................
4.5. Alternated spanwise Lorenz forcing and
electromagnetic (EM) control.................................. 123
4.6. Extensions of spanwise forcing............................. 131
4.7. Reynolds number dependence................................. 132
4.8. Suboptimal active control.................................. 134
4.9. Optimal active control..................................... 143
4.10. Optimal linear control.................................... 147
4.11. Neural networks........................................... 156
4.12. Stochastic synchronization of the
wall turbulence and dual control................................ 157
Bibliography....................................................... 167
Index
185
Wall turbulence control is a major subject, the investigation of which has
significant industrial, environmental and fundamental consequences.
This book deals with recent advances in active and passive turbulent
skin-friction control over the past t*wo decades.
The importance of drag reduction control in aerodynamics can be
demonstrated with one simple,, example: just a 2% drag reduction is
sufficient to transport 5 extra passengers on a flight from Paris to New
York. Furthermore, a drag reduction of 10% would result in a saving of
more than 50 billion US dollars in worldwide commercial maritime
transport. This explains the huge amount of experimental, numerical
and theoretical investigations into turbulent drag reduction that have
been published in recent decades. As passive means such as riblets
possess limited drag reduction capacities, the focus has generally been
put on active strategies in recent years.
This book gives an updated view of the research on this topic, including
passive control (riblets, large eddy break up devices, hydrophobic
surfaces), control by local unsteady blowing, electromagnetic control,
optimal and suboptimal control methodology, linear control and control
using adaptive methods (neural networks).
Sedat Tardu is Associate Professor at Grenoble University in France
where he teaches turbulent shear flows, heat transfer, fluid dynamics,
and chaos. His research area includes canonical and non-canonical wall
turbulence, active and passive control of near wall turbulence, unsteady
wall layers, mixing and micro-mixing, and microfluidics. He has been a
visiting researcher at several universities and is the author of more than
200 papers in peer-reviewed journals and international conferences, and
of several book chapters.
www. iste.co. uk
Wiley
|
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| author_role | aut |
| author_sort | Tardu, Sedat 1959- |
| author_variant | s t st |
| building | Verbundindex |
| bvnumber | BV044223691 |
| classification_rvk | UF 4300 |
| ctrlnum | (OCoLC)1005926211 (DE-599)BVBBV044223691 |
| discipline | Physik |
| format | Book |
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| id | DE-604.BV044223691 |
| illustrated | Illustrated |
| indexdate | 2024-07-10T07:47:03Z |
| institution | BVB |
| isbn | 9781848215597 |
| language | English |
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| oclc_num | 1005926211 |
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| owner_facet | DE-703 DE-29T |
| physical | xii, 186 Seiten Illustrationen, Diagramme |
| publishDate | 2017 |
| publishDateSearch | 2017 |
| publishDateSort | 2017 |
| publisher | ISTE Wiley |
| record_format | marc |
| series2 | Fluid mechanics series |
| spelling | Tardu, Sedat 1959- Verfasser (DE-588)139226362 aut Wall turbulence control Sedat Tardu London, UK ISTE 2017 Hoboken, NJ, USA Wiley 2017 xii, 186 Seiten Illustrationen, Diagramme txt rdacontent n rdamedia nc rdacarrier Fluid mechanics series Turbulente Strömung (DE-588)4117265-6 gnd rswk-swf Turbulente Grenzschicht (DE-588)4137846-5 gnd rswk-swf Grenzschichtablösung (DE-588)4136915-4 gnd rswk-swf Wand (DE-588)4064516-2 gnd rswk-swf Turbulence Turbulente Strömung (DE-588)4117265-6 s Wand (DE-588)4064516-2 s DE-604 Turbulente Grenzschicht (DE-588)4137846-5 s Grenzschichtablösung (DE-588)4136915-4 s Digitalisierung UB Bayreuth - ADAM Catalogue Enrichment application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=029629561&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis Digitalisierung UB Bayreuth - ADAM Catalogue Enrichment application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=029629561&sequence=000002&line_number=0002&func_code=DB_RECORDS&service_type=MEDIA Klappentext |
| spellingShingle | Tardu, Sedat 1959- Wall turbulence control Turbulente Strömung (DE-588)4117265-6 gnd Turbulente Grenzschicht (DE-588)4137846-5 gnd Grenzschichtablösung (DE-588)4136915-4 gnd Wand (DE-588)4064516-2 gnd |
| subject_GND | (DE-588)4117265-6 (DE-588)4137846-5 (DE-588)4136915-4 (DE-588)4064516-2 |
| title | Wall turbulence control |
| title_auth | Wall turbulence control |
| title_exact_search | Wall turbulence control |
| title_full | Wall turbulence control Sedat Tardu |
| title_fullStr | Wall turbulence control Sedat Tardu |
| title_full_unstemmed | Wall turbulence control Sedat Tardu |
| title_short | Wall turbulence control |
| title_sort | wall turbulence control |
| topic | Turbulente Strömung (DE-588)4117265-6 gnd Turbulente Grenzschicht (DE-588)4137846-5 gnd Grenzschichtablösung (DE-588)4136915-4 gnd Wand (DE-588)4064516-2 gnd |
| topic_facet | Turbulente Strömung Turbulente Grenzschicht Grenzschichtablösung Wand |
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