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Free Stream Turbulence Intensity In The Langley 14 By 22 Foot Subsonic Tunnel
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Book Synopsis Free-Stream Turbulence Intensity in the Langley 14- by 22-Foot Subsonic Tunnel by : National Aeronaut Administration (Nasa)
Download or read book Free-Stream Turbulence Intensity in the Langley 14- by 22-Foot Subsonic Tunnel written by National Aeronaut Administration (Nasa) and published by . This book was released on 2020-08-11 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: An investigation was conducted using hot-wire anemometry to determine the turbulence intensity levels in the test section of the Langley 14- by 22-Foot Subsonic Tunnel in the closed or walls-down configuration. This study was one component of the three-dimensional High-Lift Flow Physics experiment designed to provide code validation data. Turbulence intensities were measured during two stages of the study. In the first stage, the free-stream turbulence levels were measured before and after a change was made to the floor suction surface of the wind tunnel s boundary layer removal system. The results indicated that the new suction surface at the entrance to the test section had little impact on the turbulence intensities. The second stage was an overall flow quality survey of the empty tunnel including measurements of the turbulence levels at several vertical and streamwise locations. Results indicated that the turbulence intensity is a function of tunnel dynamic pressure and the location in the test section. The general shape of the frequency spectrum is fairly consistent throughout the wind tunnel, changing mostly in amplitude (also slightly with frequency) with change in condition and location. Neuhart, Dan H. and McGinley, Catherine B. Langley Research Center NASA/TP-2004-213247, L-18336 SUBSONIC WIND TUNNELS; TURBULENCE; FREE FLOW; PRESSURE EFFECTS; ANEMOMETERS; COMPUTATIONAL FLUID DYNAMICS
Book Synopsis Free-Stream Turbulence Intensity in the Langley 14- by 22-Foot Subsonic Tunnel by : Nasa Technical Reports Server (Ntrs)
Download or read book Free-Stream Turbulence Intensity in the Langley 14- by 22-Foot Subsonic Tunnel written by Nasa Technical Reports Server (Ntrs) and published by BiblioGov. This book was released on 2013-07 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: An investigation was conducted using hot-wire anemometry to determine the turbulence intensity levels in the test section of the Langley 14- by 22-Foot Subsonic Tunnel in the closed or walls-down configuration. This study was one component of the three-dimensional High-Lift Flow Physics experiment designed to provide code validation data. Turbulence intensities were measured during two stages of the study. In the first stage, the free-stream turbulence levels were measured before and after a change was made to the floor suction surface of the wind tunnel s boundary layer removal system. The results indicated that the new suction surface at the entrance to the test section had little impact on the turbulence intensities. The second stage was an overall flow quality survey of the empty tunnel including measurements of the turbulence levels at several vertical and streamwise locations. Results indicated that the turbulence intensity is a function of tunnel dynamic pressure and the location in the test section. The general shape of the frequency spectrum is fairly consistent throughout the wind tunnel, changing mostly in amplitude (also slightly with frequency) with change in condition and location.
Book Synopsis The Langley 14- by 22-foot Subsonic Tunnel by : Garl L. Gentry
Download or read book The Langley 14- by 22-foot Subsonic Tunnel written by Garl L. Gentry and published by . This book was released on 1990 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Effect of Collector Configuration on Test Section Turbulence Levels in an Open-jet Wind Tunnel by : G. S. Manuel
Download or read book Effect of Collector Configuration on Test Section Turbulence Levels in an Open-jet Wind Tunnel written by G. S. Manuel and published by . This book was released on 1992 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Langley Aerospace Test Highlights, 1988 by :
Download or read book Langley Aerospace Test Highlights, 1988 written by and published by . This book was released on 1989 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt: Some of the significant tests which were performed during calendar year 1988 in Langley test facilities, a number of which are unique in the world are highlighted.
Book Synopsis Computational Flight Testing by : Norbert Kroll
Download or read book Computational Flight Testing written by Norbert Kroll and published by Springer Science & Business Media. This book was released on 2013-06-18 with total page 287 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book reports on the German research initiative ComFliTe (Computational Flight Testing), the main goal of which was to enhance the capabilities of and tools for numerical simulation in flight physics to support future aircraft design and development. The initiative was coordinated by the German Aerospace Center (DLR) and promoted collaboration between the aircraft industry and academia. Activities focused on improving physical modeling for separated flows, developing advanced numerical algorithms for series computations and sensitivity predictions, as well as surrogate and reduced order modeling for aero data production and developing robust fluid-, structure- and flight mechanics coupling procedures. Further topics included more efficient handling of aircraft control surfaces and improving simulation methods for maneuvers, such as gust encounter. The important results of this three-year initiative were presented during the ComFliTe closing symposium, which took place at the DLR in Braunschweig, Germany, on 11-12 June 2012. Computational Flight Testing addresses both students and researchers in the areas of mathematics, numerical simulation and optimization methods, as well as professionals in aircraft design working at the forefront of their field.
Download or read book NASA Technical Memorandum written by and published by . This book was released on 1992 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book 05-5131 - 05-5164 written by and published by . This book was released on 2005 with total page 450 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1981 with total page 1370 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Author :National Aeronautics and Space Administration (NASA) Publisher :Createspace Independent Publishing Platform ISBN 13 :9781722189488 Total Pages :24 pages Book Rating :4.1/5 (894 download)
Book Synopsis Effect of Collector Configuration on Test Section Turbulence Levels in an Open-Jet Wind Tunnel by : National Aeronautics and Space Administration (NASA)
Download or read book Effect of Collector Configuration on Test Section Turbulence Levels in an Open-Jet Wind Tunnel written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-02 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: Flow quality studies in the Langley 14- by 22-Foot Subsonic Tunnel indicated periodic flow pulsation at discrete frequencies in the test section when the tunnel operated in an open-jet configuration. To alleviate this problem, experiments were conducted in a 1/24-scale model of the full-scale tunnel to evaluate the turbulence reduction potential of six collector configurations. As a result of these studies, the original bell-mouth collector of the 14- by 22-Foot Subsonic Tunnel was replaced by a collector with straight walls, and a slot was incorporated between the trailing edge of the collector and the entrance of the diffuser. Manuel, G. S. and Molloy, John K. and Barna, P. Stephen Langley Research Center RTOP 505-61-41-02...
Book Synopsis Acoustic Characterization of the NASA Langley 14 X 22 Ft Subsonic Wind Tunnel by : James Thomas Crippen
Download or read book Acoustic Characterization of the NASA Langley 14 X 22 Ft Subsonic Wind Tunnel written by James Thomas Crippen and published by . This book was released on 2011 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Effect of Pylon Wake with and Without Pylon Blowing on Propeller Thrust by :
Download or read book Effect of Pylon Wake with and Without Pylon Blowing on Propeller Thrust written by and published by . This book was released on 1990 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Data reduction functions for the Langley 14- by 22-foot subsonic tunnel by : Hiroaki Nishikawa
Download or read book Data reduction functions for the Langley 14- by 22-foot subsonic tunnel written by Hiroaki Nishikawa and published by . This book was released on 2014 with total page 77 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Effect of Pylon Wake with and Without Pylon Blowing on Propeller Thrust by : Garl L. Gentry
Download or read book Effect of Pylon Wake with and Without Pylon Blowing on Propeller Thrust written by Garl L. Gentry and published by . This book was released on 1990 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis NASA/Army Rotorcraft Technology. Volume 1: Aerodynamics, and Dynamics and Aeroelasticity by :
Download or read book NASA/Army Rotorcraft Technology. Volume 1: Aerodynamics, and Dynamics and Aeroelasticity written by and published by . This book was released on 1988 with total page 554 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Aeronautical Engineering written by and published by . This book was released on 1992 with total page 648 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).
Book Synopsis Unsteady Velocity Measurements Taken Behind a Model Helicopter Rotor Hub in Forward Flight by : John D. Berry
Download or read book Unsteady Velocity Measurements Taken Behind a Model Helicopter Rotor Hub in Forward Flight written by John D. Berry and published by . This book was released on 1997 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt: