Experimental investigation of a stationary cascade of aerodynamic profiles:
Gespeichert in:
| 1. Verfasser: | |
|---|---|
| Format: | Abschlussarbeit Buch |
| Sprache: | English |
| Veröffentlicht: |
Zürich
Leemann
1949
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| Schriftenreihe: | Mitteilungen aus dem Institut für Aerodynamik an der eidgenössischen Technischen Hochschule in Zürich
17 |
| Schlagworte: | |
| Online-Zugang: | Inhaltsverzeichnis |
| Beschreibung: | 78 S. Ill. |
Internformat
MARC
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Datensatz im Suchindex
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| adam_text |
INDEX
PAGE
I. INTRODUCTION. 7
II. PRELIMINARY COMPUTATIONS. 8
A. DETERMINATION OF THE CASCADE BLADE PROFILE. 8
1. GENERAL PROBLEMS AND AVAILABLE THEORIES.YY 8
2. THE CONTINUUM CASCADE THEORY AND ITS APPLICATION . 9
B. CASCADE BLADE STATIC PRESSURE DISTRIBUTION FROM CONTINUUM CASCADE
THEORY 25
C. STREAMLINES DIRECTLY AHEAD OF AND BEHIND A CASCADE BLADE . 27
III. TEST EQUIPMENT. .28
A. WIND TUNNEL (UP TO TEST SECTION).28
B. TEST SECTION OF TUNNEL.30
C. CASCADE FORCE-MEASURING BALANCE.YY . . 32
D. INSTRUMENTATION . 34
IV. PRELIMINARY EXPERIMENTAL WORK.
YY
. 35
A. TEST OF THE AMSLER PRINCIPLE FOR APPLICATION TO THE CONSTRUCTION OF A
BALANCE 35
B. STATIC CALIBRATION OF BALANCE.37
C. DETERMINATION OF TURBULENCE FOR FREE TUNNEL FLOW AND BEHIND WIRE
SCREENS 38
D. FLOW UNIFORMITY IN THE TUNNEL TEST SECTION.41
E. FORCE ON SEALING PLATE AND BLADE BASE EXTERIOR TO TUNNEL
. 47
V. EXPERIMENTAL DATA.48
A. GENERAL PLAN.48
B. TWO-DIMENSIONAL PHENOMENA.49
1. STATIC PRESSURE DISTRIBUTION ON BLADE AT MID-HEIGHT . 49
2. CHANGE IN REFERENCE CASCADE PRESSURE DROP AND TURNING ANGLE WITH
REYNOLDS NUMBER AND TURBULENCE.49
3. TOTAL PRESSURE WAKE TRAVERSES AT BLADE MID-HEIGHT.50
4. FLOW AT BLADE SURFACE.50
C. THREE-DIMENSIONAL PHENOMENA.50
1. WALL STATIC PRESSURE FIELD.50
2. BALANCE MEASUREMENTS.50
3. MOMENTUM TRAVERSES OVER BLADE HEIGHT.52
VI. DISCUSSION OF DATA: COMPARISON WITH THEORY.53
A. TWO-DIMENSIONAL.53
1. STATIC PRESSURE DISTRIBUTION ABOUT BLADE AT MID-HEIGHT . 53
2. BLADE LOSSES FROM WAKE TRAVERSES.56
3. FLOW AT BLADE SURFACE.61
4. RELATIVE VARIATION OF CASCADE PRESSURE DROP AND TURNING ANGLE . 64
B. THREE-DIMENSIONAL.66
1. DISTRIBUTION OF LOSSES OVER BLADE HEIGHT; TIP CLEARANCE EFFECT . . 66
2. BLADE EFFICIENCY FROM FORCE MEASUREMENTS.69
A) DEFINITION AND DERIVATION OF BLADE EFFICIENCY USING BLADE FORCES . 69
B) EVALUATION OF THE BLADE EFFICIENCY FROM CURRENT TESTS . 72
VII. SUMMARY AND CONCLUSIONS.76
A. CASCADE TESTING IN GENERAL.76
B. TURBULENCE AND REYNOLDS NUMBER EFFECTS UPON BLADE PERFORMANCE . 76
C. CONTINUUM THEORY OF CASCADES.76
3
BIBLIOGRAFISCHE INFORMATIONEN
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| spelling | Sawyer, William Thomas Verfasser aut Experimental investigation of a stationary cascade of aerodynamic profiles William T. Sawyer Zürich Leemann 1949 78 S. Ill. txt rdacontent n rdamedia nc rdacarrier Mitteilungen aus dem Institut für Aerodynamik an der eidgenössischen Technischen Hochschule in Zürich 17 Zugl.: Zürich, ETH, Diss. Tragflügel (DE-588)4060582-6 gnd rswk-swf Profil Aerodynamik (DE-588)4126393-5 gnd rswk-swf (DE-588)4113937-9 Hochschulschrift gnd-content Profil Aerodynamik (DE-588)4126393-5 s Tragflügel (DE-588)4060582-6 s DE-604 Institut für Aerodynamik <Zürich> Mitteilungen aus dem Institut für Aerodynamik an der eidgenössischen Technischen Hochschule in Zürich 17 (DE-604)BV001896133 17 DNB Datenaustausch application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=022627924&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis |
| spellingShingle | Sawyer, William Thomas Experimental investigation of a stationary cascade of aerodynamic profiles Tragflügel (DE-588)4060582-6 gnd Profil Aerodynamik (DE-588)4126393-5 gnd |
| subject_GND | (DE-588)4060582-6 (DE-588)4126393-5 (DE-588)4113937-9 |
| title | Experimental investigation of a stationary cascade of aerodynamic profiles |
| title_auth | Experimental investigation of a stationary cascade of aerodynamic profiles |
| title_exact_search | Experimental investigation of a stationary cascade of aerodynamic profiles |
| title_full | Experimental investigation of a stationary cascade of aerodynamic profiles William T. Sawyer |
| title_fullStr | Experimental investigation of a stationary cascade of aerodynamic profiles William T. Sawyer |
| title_full_unstemmed | Experimental investigation of a stationary cascade of aerodynamic profiles William T. Sawyer |
| title_short | Experimental investigation of a stationary cascade of aerodynamic profiles |
| title_sort | experimental investigation of a stationary cascade of aerodynamic profiles |
| topic | Tragflügel (DE-588)4060582-6 gnd Profil Aerodynamik (DE-588)4126393-5 gnd |
| topic_facet | Tragflügel Profil Aerodynamik Hochschulschrift |
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