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Book Corrections for Attached Sidewall Boundary layer Effects in 2 dimensional Airfoil Testing

Download or read book Corrections for Attached Sidewall Boundary layer Effects in 2 dimensional Airfoil Testing written by and published by . This book was released on 1985 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: The problems of sidewall boundary-layer effects in airfoil testing is treated by considering the changes in the flow area due to boundary-layer thinning under the influence of the airfoil flowfield. Using von Karman's momentum integral equation, it is shown that the sidewall boundary-layer thickness in the region of the airfoil can reduce to about half the undisturbed value under the conditions prevailing in testing of supercritical airfoils. A Mach number correction due to this increased width of the flow passage is proposed. Using the small disturbance approximation, the effect of the sidewall boundary-layers is shown to be equivalent to a change in the test Mach number and also in the airfoil thickness. Comparison of the results of this approach with other similarity rules and correlation of the experimental data demonstrate the applicability of the analysis presented from low speeds to transonic speeds.

Book NASA Technical Memorandum

Download or read book NASA Technical Memorandum written by and published by . This book was released on 1988 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Scientific and Technical Aerospace Reports

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 702 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Wind Tunnel Wall Interference January 1980 May 1988

Download or read book Wind Tunnel Wall Interference January 1980 May 1988 written by Marie H. Tuttle and published by . This book was released on 1988 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book NASA Technical Paper

Download or read book NASA Technical Paper written by and published by . This book was released on 1992 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book NASA Technical Paper

    NASA Technical Paper

    Book Details:
  • Author : United States. National Aeronautics and Space Administration
  • Publisher :
  • Release : 1983
  • ISBN :
  • Pages : 60 pages

Download or read book NASA Technical Paper written by United States. National Aeronautics and Space Administration and published by . This book was released on 1983 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book NASA SP

    NASA SP

    Book Details:
  • Author :
  • Publisher :
  • Release : 1992
  • ISBN :
  • Pages : 654 pages

Download or read book NASA SP written by and published by . This book was released on 1992 with total page 654 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Technical Abstract Bulletin

Download or read book Technical Abstract Bulletin written by and published by . This book was released on 1980 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Aerodynamic Characteristics of Two Rotorcraft Airfoils Designed for Application to the Inboard Region of a Main Rotor Blade

Download or read book Aerodynamic Characteristics of Two Rotorcraft Airfoils Designed for Application to the Inboard Region of a Main Rotor Blade written by and published by DIANE Publishing. This book was released on with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Aerodynamic Data Accuracy and Quality

Download or read book Aerodynamic Data Accuracy and Quality written by North Atlantic Treaty Organization. Advisory Group for Aerospace Research and Development. Fluid Dynamics Panel. Symposium and published by . This book was released on 1988 with total page 546 pages. Available in PDF, EPUB and Kindle. Book excerpt: The wind tunnel continues to be the main instrument for providing experimental aerodynamic data to the aerospace industry and the aerodynamic researcher for the purpose of load and performance evaluation and for verification of theoretical results. In both cases it is imperative that the user has confidence in the quality of the results, which means that he must have information on what accuracy to attach to the data. The quality of wind tunnel results depends upon both the accuracy of measurements and the imperfections provided by the wind tunnel environment. Great strides have been made in recent years on measurement accuracy and as a rule this need no longer be of much concern if properly attended to. However, imperfections provided by the wind tunnel environment are still with us and these are today the main sources affecting the quality and accuracy of aerodynamic data obtained in a wind tunnel. It was the purpose of this symposium to try to define what accuracy has presently been achieved in modern facilities and to compare these achievements with the actual demands of the user.

Book Aeronautical Engineering

Download or read book Aeronautical Engineering written by and published by . This book was released on 1993 with total page 712 pages. Available in PDF, EPUB and Kindle. Book excerpt: A selection of annotated references to unclassified reports and journal articles that were introduced into the NASA scientific and technical information system and announced in Scientific and technical aerospace reports (STAR) and International aerospace abstracts (IAA)