Experimental characterization and control of airfoil lift under the influence of vortical gusts:
Gespeichert in:
| 1. Verfasser: | |
|---|---|
| Format: | Abschlussarbeit Buch |
| Sprache: | English |
| Veröffentlicht: |
Braunschweig
TU Braunschweig - Niedersächsisches Forschungszentrum für Luftfahrt
[2023]
|
| Ausgabe: | 1. Auflage |
| Schriftenreihe: | Forschungsbericht / TU Braunschweig, Niedersächsisches Forschungszentrum für Luftfahrt
2023, 03 Berichte aus der Luft- und Raumfahrttechnik |
| Schlagworte: | |
| Online-Zugang: | Inhaltsverzeichnis Inhaltsverzeichnis |
| Beschreibung: | ix, 144 Seiten Illustrationen, Diagramme 21 cm, 275 g |
| ISBN: | 9783947623617 3947623615 |
Internformat
MARC
| LEADER | 00000nam a2200000 cb4500 | ||
|---|---|---|---|
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| 003 | DE-604 | ||
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| 020 | |a 3947623615 |9 3-947623-61-5 | ||
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| 100 | 1 | |a Pohl, Johannes Ernst |e Verfasser |4 aut | |
| 245 | 1 | 0 | |a Experimental characterization and control of airfoil lift under the influence of vortical gusts |c Johannes Pohl ; TU Braunschweig, Institut für Strömungsmechanik |
| 250 | |a 1. Auflage | ||
| 264 | 1 | |a Braunschweig |b TU Braunschweig - Niedersächsisches Forschungszentrum für Luftfahrt |c [2023] | |
| 300 | |a ix, 144 Seiten |b Illustrationen, Diagramme |c 21 cm, 275 g | ||
| 336 | |b txt |2 rdacontent | ||
| 337 | |b n |2 rdamedia | ||
| 338 | |b nc |2 rdacarrier | ||
| 490 | 1 | |a Forschungsbericht / TU Braunschweig, Niedersächsisches Forschungszentrum für Luftfahrt |v 2023, 03 | |
| 490 | 0 | |a Berichte aus der Luft- und Raumfahrttechnik | |
| 502 | |b Dissertation |c Technische Universität Carolo-Wilhelmina zu Braunschweig |d 2023 | ||
| 653 | |a Gust | ||
| 653 | |a Mitigation | ||
| 653 | |a Load | ||
| 653 | |a Alleviation | ||
| 653 | |a Control | ||
| 655 | 7 | |0 (DE-588)4113937-9 |a Hochschulschrift |2 gnd-content | |
| 710 | 2 | |a Niedersächsisches Forschungszentrum für Luftfahrt |0 (DE-588)1048343715 |4 pbl | |
| 810 | 2 | |a TU Braunschweig, Niedersächsisches Forschungszentrum für Luftfahrt |t Forschungsbericht |v 2023, 03 |w (DE-604)BV041922376 |9 2023, 03 | |
| 856 | 4 | 2 | |m B:DE-101 |q application/pdf |u https://d-nb.info/1282184393/04 |3 Inhaltsverzeichnis |
| 856 | 4 | 2 | |m DNB Datenaustausch |q application/pdf |u http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=035041264&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA |3 Inhaltsverzeichnis |
| 883 | 2 | |8 1\p |a dnb |d 20230411 |q DE-101 |u https://d-nb.info/provenance/plan#dnb | |
Datensatz im Suchindex
| _version_ | 1805073916649013248 |
|---|---|
| adam_text |
CONTENTS
LIST
OF
FIGURES
II
LIST
OF
TABLES
V
NOMENCLATURE
VII
1.
INTRODUCTION
1
1.1.
MOTIVATION
.
1
1.2.
FUNDAMENTALS
.
2
1.2.1.
ATMOSPHERIC
TURBULENCE
AND
WIND
GUST
ENCOUNTERS
.
2
1.2.2.
GENERATION
OF
ARTIFICIAL
GUSTS
IN
EXPERIMENTAL
ENVIRONMENTS
.
5
1.2.3.
UNSTEADY
AIRFOIL
THEORY
AND
MODELING
.
8
1.2.4.
ACTUATED
CONTROL
SURFACES
AND
TRAILING-EDGE
FLAPS
.
12
1.2.5.
ACTIVE
GUST
LOAD
ALLEVIATION
.
16
1.3.
PROJECT
OBJECTIVES
.
20
2.
EXPERIMENTAL
SETUP
23
2.1.
TEST
SETUP
.
23
2.1.1.
WIND
TUNNEL
.
23
2.1.2.
EXPERIMENTAL
CONFIGURATION
.
24
2.1.3.
RESEARCH
AIRFOIL
.
25
2.1.4.
GUST
GENERATOR
.
26
2.2.
TEST
CASES
.
27
2.2.1.
MEASURING
THE
LIFT
RESPONSE
TO
STATIC
FLAP
DEFLECTIONS
.
28
2.2.2.
MEASURING
THE
LIFT
RESPONSE
TO
UNSTEADY
FLAP
ACTUATION
.
28
2.2.3.
MEASURING
THE
LIFT
AND
FLOW
RESPONSE
TO
STATIC
GUST
GENERATOR
DEFLECTIONS
30
2.2.4.
MEASURING
THE
LIFT
AND
FLOW
RESPONSE
TO
ARTIFICIAL
GUST
ENCOUNTERS
.
30
2.2.5.
MEASURING
THE
LIFT
RESPONSE
TO
REAL-TIME
CONTROL
.
31
2.3.
ACQUISITION
AND
CONTROL
SYSTEMS
.
32
2.3.1.
FLAP
ACTUATION
SYSTEM
.
33
2.3.2.
GUST
ACTUATION
SYSTEM
.
39
2.3.3.
PRESSURE
MEASUREMENT
AND
AIRFOIL
FORCES
.
40
2.3.4.
HOT
WIRE
MEASUREMENT
.
46
3.
SYSTEM
MODELING
49
3.1.
MODELING
THE
AIRFOIL
LIFT
RESPONSE
TO
FLAP
ACTUATION
.
50
3.1.1.
THEODORSEN
'
S
UNSTEADY
AIRFOIL
THEORY
.
50
3.1.2.
STATIC
AIRFOIL
LIFT
MODEL
.
51
3.1.3.
NONLINEAR
DYNAMIC
AIRFOIL
LIFT
MODEL
.
51
3.1.4.
LINEAR
AIRFOIL
LIFT
RESPONSE
CONTROL
MODEL
.
53
3.2.
MODELING
THE
AIRFOIL
LIFT
RESPONSE
TO
GUST
ENCOUNTERS
.
54
3.3.
FEEDBACK
CONTROL
MODELING
3.4.
CONTROLLER
DESIGN
.
55
4.
RESULTS
59
4.1.
STATIC
AIRFOIL
LIFT
.
59
4.1.1.
STATIC
AIRFOIL
LIFT
FOR
VARIATIONS
IN
ANGLE
OF
ATTACK
.
59
4.1.2.
STATIC
AIRFOIL
LIFT
FOR
VARIATIONS
IN
FLAP
ANGLE
.
61
4.1.3.
COMPARISON
OF
THE
RESULTS
FROM
MEASUREMENT
SETS
ML,
M2,
M3
.
62
4.1.4.
COMPARISON
TO
RESULTS
FROM
NUMERICAL
SIMULATIONS
.
63
4.2.
STATIC
GUST
GENERATOR
EFFECTS
.
64
4.2.1.
WAKE
DETECTION
AND
POSITION
ANALYSIS
.
64
4.2.2.
WAKE
EFFECT
ON
FLOW
ANGLE
.
66
4.2.3.
WAKE
EFFECT
ON
STATIC
AIRFOIL
LIFT
.
67
4.3.
DYNAMIC
AIRFOIL
LIFT
FOR
UNSTEADY
FLAP
ACTUATION
.
68
4.3.1.
SURFACE
PRESSURE
RESPONSE
.
68
4.3.2.
DYNAMIC
AIRFOIL
LIFT
HYSTERESIS
.
71
4.3.3.
QUANTIFICATION
OF
THE
DYNAMIC
AIRFOIL
LIFT
.
74
4.3.4.
IMPACT
OF
THE
FLOW
SPEED
ON
DYNAMIC
LIFT
HYSTERESIS
.
77
4.4.
DYNAMIC
AIRFOIL
LIFT
MODELS
FOR
UNSTEADY
FLAP
MOTION
.
78
4.4.1.
TIME
DOMAIN
PREDICTION
.
79
4.4.2.
FREQUENCY
DOMAIN
RESPONSE
.
80
4.5.
GENERATION
OF
ARTIFICIAL
WIND
GUSTS
.
82
4.5.1.
GUST
EFFECT
CHARACTERIZATION
.
82
4.5.2.
STATISTICAL
GUST
ANALYSIS
.
88
4.6.
ARTIFICIAL
GUST
MODELS
.
97
4.7.
GUST
MITIGATION
THROUGH
REAL-TIME
LIFT
CONTROL
.
98
4.7.1.
FEEDBACK-FEEDFORWARD
CLOSED-LOOP
CONTROL
.
98
4.7.2.
COMPARISON
BETWEEN
THE
VARIOUS
CONTROL
STRATEGIES
.
102
4.7.3.
CONTROL
PERFORMANCE
UNDER
VARIOUS
OPERATING
CONDITIONS
.
103
5.
SUMMARY
107
5.1.
CONCLUSIONS
.
107
5.2.
OUTLOOK
.
108
BIBLIOGRAPHY
111
A.
PRESSURE
MEASUREMENT
AND
AIRFOIL
LIFT
UNCERTAINTY
QUANTIFICATION
119
B.
MICOSY
SOFTWARE
125
C.
COMPLEMENTARY
MEASUREMENT
RESULTS
127 |
| any_adam_object | 1 |
| author | Pohl, Johannes Ernst |
| author_facet | Pohl, Johannes Ernst |
| author_role | aut |
| author_sort | Pohl, Johannes Ernst |
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| building | Verbundindex |
| bvnumber | BV049698816 |
| ctrlnum | (DE-599)DNB1282184393 |
| edition | 1. Auflage |
| format | Thesis Book |
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| genre_facet | Hochschulschrift |
| id | DE-604.BV049698816 |
| illustrated | Illustrated |
| indexdate | 2024-07-20T05:17:13Z |
| institution | BVB |
| institution_GND | (DE-588)1048343715 |
| isbn | 9783947623617 3947623615 |
| language | English |
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| owner_facet | DE-83 |
| physical | ix, 144 Seiten Illustrationen, Diagramme 21 cm, 275 g |
| publishDate | 2023 |
| publishDateSearch | 2023 |
| publishDateSort | 2023 |
| publisher | TU Braunschweig - Niedersächsisches Forschungszentrum für Luftfahrt |
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| series2 | Forschungsbericht / TU Braunschweig, Niedersächsisches Forschungszentrum für Luftfahrt Berichte aus der Luft- und Raumfahrttechnik |
| spelling | Pohl, Johannes Ernst Verfasser aut Experimental characterization and control of airfoil lift under the influence of vortical gusts Johannes Pohl ; TU Braunschweig, Institut für Strömungsmechanik 1. Auflage Braunschweig TU Braunschweig - Niedersächsisches Forschungszentrum für Luftfahrt [2023] ix, 144 Seiten Illustrationen, Diagramme 21 cm, 275 g txt rdacontent n rdamedia nc rdacarrier Forschungsbericht / TU Braunschweig, Niedersächsisches Forschungszentrum für Luftfahrt 2023, 03 Berichte aus der Luft- und Raumfahrttechnik Dissertation Technische Universität Carolo-Wilhelmina zu Braunschweig 2023 Gust Mitigation Load Alleviation Control (DE-588)4113937-9 Hochschulschrift gnd-content Niedersächsisches Forschungszentrum für Luftfahrt (DE-588)1048343715 pbl TU Braunschweig, Niedersächsisches Forschungszentrum für Luftfahrt Forschungsbericht 2023, 03 (DE-604)BV041922376 2023, 03 B:DE-101 application/pdf https://d-nb.info/1282184393/04 Inhaltsverzeichnis DNB Datenaustausch application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=035041264&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis 1\p dnb 20230411 DE-101 https://d-nb.info/provenance/plan#dnb |
| spellingShingle | Pohl, Johannes Ernst Experimental characterization and control of airfoil lift under the influence of vortical gusts |
| subject_GND | (DE-588)4113937-9 |
| title | Experimental characterization and control of airfoil lift under the influence of vortical gusts |
| title_auth | Experimental characterization and control of airfoil lift under the influence of vortical gusts |
| title_exact_search | Experimental characterization and control of airfoil lift under the influence of vortical gusts |
| title_full | Experimental characterization and control of airfoil lift under the influence of vortical gusts Johannes Pohl ; TU Braunschweig, Institut für Strömungsmechanik |
| title_fullStr | Experimental characterization and control of airfoil lift under the influence of vortical gusts Johannes Pohl ; TU Braunschweig, Institut für Strömungsmechanik |
| title_full_unstemmed | Experimental characterization and control of airfoil lift under the influence of vortical gusts Johannes Pohl ; TU Braunschweig, Institut für Strömungsmechanik |
| title_short | Experimental characterization and control of airfoil lift under the influence of vortical gusts |
| title_sort | experimental characterization and control of airfoil lift under the influence of vortical gusts |
| topic_facet | Hochschulschrift |
| url | https://d-nb.info/1282184393/04 http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=035041264&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA |
| volume_link | (DE-604)BV041922376 |
| work_keys_str_mv | AT pohljohannesernst experimentalcharacterizationandcontrolofairfoilliftundertheinfluenceofvorticalgusts AT niedersachsischesforschungszentrumfurluftfahrt experimentalcharacterizationandcontrolofairfoilliftundertheinfluenceofvorticalgusts |
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