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Aerodynamic Characteristics Of Three Helicopter Rotor Airfoil Sections At Reynolds Numbers From Model Scale To Full Scale At Mach Numbers From 0.35 To 0.90 by Kevin W Noonan

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1DTIC ADA089766: Aerodynamic Characteristics Of Three Helicopter Rotor Airfoil Sections At Reynolds Numbers From Model Scale To Full Scale At Mach Numbers From 0.35 To 0.90.

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An investigation was conducted in the Langley 6- by 28-Inch Transonic Tunnel to determine the two-dimensional aerodynamic characteristics of three helicopter rotor airfoils at Reynolds numbers from typical model scale to full scale at Mach numbers from about 0.35 to 0.90. The model-scale Reynolds numbers ranged from about 0.7 times 10 to the 6th power to 1.5 times 10 to the 6th power and the full-scale Reynolds numbers ranged from about 3.0 times 10 to the 6th power to 6.6 times 10 to the 6th power. The airfoils tested were the NACA 0012 (0 deg Tab), the SC 1095-R8, and the SC 1095. Both the SC 1095 and the SC 1095-R8 airfoils a had trailing-edge tabs. The results of this investigation indicate that Reynolds number effects can be significant on the maximum normal-force coefficient and all drag-related parameters; namely, drag at zero normal force, maximum normal-force--drag-ratio, and drag-divergence Mach number. In general, the increments in these parameters at a given Mach number owing to the model-scale to full-scale Reynolds number change are different for each of the airfoils. (Author)

“DTIC ADA089766: Aerodynamic Characteristics Of Three Helicopter Rotor Airfoil Sections At Reynolds Numbers From Model Scale To Full Scale At Mach Numbers From 0.35 To 0.90.” Metadata:

  • Title: ➤  DTIC ADA089766: Aerodynamic Characteristics Of Three Helicopter Rotor Airfoil Sections At Reynolds Numbers From Model Scale To Full Scale At Mach Numbers From 0.35 To 0.90.
  • Author: ➤  
  • Language: English

“DTIC ADA089766: Aerodynamic Characteristics Of Three Helicopter Rotor Airfoil Sections At Reynolds Numbers From Model Scale To Full Scale At Mach Numbers From 0.35 To 0.90.” Subjects and Themes:

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The book is available for download in "texts" format, the size of the file-s is: 54.07 Mbs, the file-s for this book were downloaded 64 times, the file-s went public at Wed Dec 06 2017.

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2NASA Technical Reports Server (NTRS) 19800023826: Aerodynamic Characteristics Of Three Helicopter Rotor Airfoil Sections At Reynolds Number From Model Scale To Full Scale At Mach Numbers From 0.35 To 0.90. [conducted In Langley 6 By 28 Inch Transonic Tunnel

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An investigation was conducted in the Langely 6 by 28 inch transonic tunnel to determine the two dimensional aerodynamic characteristics of three helicopter rotor airfoils at Reynolds numbers from typical model scale to full scale at Mach numbers from about 0.35 to 0.90. The model scale Reynolds numbers ranged from about 700,00 to 1,500,000 and the full scale Reynolds numbers ranged from about 3,000,000 to 6,600,000. The airfoils tested were the NACA 0012 (0 deg Tab), the SC 1095 R8, and the SC 1095. Both the SC 1095 and the SC 1095 R8 airfoils had trailing edge tabs. The results of this investigation indicate that Reynolds number effects can be significant on the maximum normal force coefficient and all drag related parameters; namely, drag at zero normal force, maximum normal force drag ratio, and drag divergence Mach number. The increments in these parameters at a given Mach number owing to the model scale to full scale Reynolds number change are different for each of the airfoils.

“NASA Technical Reports Server (NTRS) 19800023826: Aerodynamic Characteristics Of Three Helicopter Rotor Airfoil Sections At Reynolds Number From Model Scale To Full Scale At Mach Numbers From 0.35 To 0.90. [conducted In Langley 6 By 28 Inch Transonic Tunnel” Metadata:

  • Title: ➤  NASA Technical Reports Server (NTRS) 19800023826: Aerodynamic Characteristics Of Three Helicopter Rotor Airfoil Sections At Reynolds Number From Model Scale To Full Scale At Mach Numbers From 0.35 To 0.90. [conducted In Langley 6 By 28 Inch Transonic Tunnel
  • Author: ➤  
  • Language: English

“NASA Technical Reports Server (NTRS) 19800023826: Aerodynamic Characteristics Of Three Helicopter Rotor Airfoil Sections At Reynolds Number From Model Scale To Full Scale At Mach Numbers From 0.35 To 0.90. [conducted In Langley 6 By 28 Inch Transonic Tunnel” Subjects and Themes:

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The book is available for download in "texts" format, the size of the file-s is: 86.48 Mbs, the file-s for this book were downloaded 83 times, the file-s went public at Fri Aug 05 2016.

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Find NASA Technical Reports Server (NTRS) 19800023826: Aerodynamic Characteristics Of Three Helicopter Rotor Airfoil Sections At Reynolds Number From Model Scale To Full Scale At Mach Numbers From 0.35 To 0.90. [conducted In Langley 6 By 28 Inch Transonic Tunnel at online marketplaces:


3Aerodynamic Characteristics Of Three Helicopter Rotor Airfoil Sections At Reynolds Numbers From Model Scale To Full Scale At Mach Numbers From 0.35 To 0.90... NASA Technical Paper 1701... NASA... September 1980

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NAS 1.60:1701 Digitized from IA1177308-06-0002 .

“Aerodynamic Characteristics Of Three Helicopter Rotor Airfoil Sections At Reynolds Numbers From Model Scale To Full Scale At Mach Numbers From 0.35 To 0.90... NASA Technical Paper 1701... NASA... September 1980” Metadata:

  • Title: ➤  Aerodynamic Characteristics Of Three Helicopter Rotor Airfoil Sections At Reynolds Numbers From Model Scale To Full Scale At Mach Numbers From 0.35 To 0.90... NASA Technical Paper 1701... NASA... September 1980
  • Author: ➤  
  • Language: English

Edition Identifiers:

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The book is available for download in "texts" format, the size of the file-s is: 84.41 Mbs, the file-s for this book were downloaded 43 times, the file-s went public at Tue Jul 12 2022.

Available formats:
Archive BitTorrent - DjVuTXT - Djvu XML - Item Image - Item Tile - JPEG 2000 - Metadata - OCR Page Index - OCR Search Text - Page Numbers JSON - Scandata - Single Page Processed JP2 ZIP - Text PDF - chOCR - hOCR -

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