File:A water tunnel investigation of the influence of Reynolds number on the high-incidence flow over double-delta wings (IA awatertunnelinve1094532152).pdf
Original file (1,275 × 1,650 pixels, file size: 9.98 MB, MIME type: application/pdf, 203 pages)
Captions
Summary[edit]
A water tunnel investigation of the influence of Reynolds number on the high-incidence flow over double-delta wings ( ) | |
---|---|
Author |
Fritzelas, Anastasios E. |
Title |
A water tunnel investigation of the influence of Reynolds number on the high-incidence flow over double-delta wings |
Publisher |
Monterey, California. Naval Postgraduate School |
Description |
There are several disagreements in the published literature on vortex interaction and bursting data obtained in various wind and water tunnel tests of double-delta wings at high angle of attack (AOA). Theretore a test program was carried out in the Naval Postgraduate School water tunnel using a 76/40 deg. baseline double-delta wing model to investigate the effect of Reynolds number. The program consisted of: (1) Flow vistialisation studies at tunnel speeds of O.2, O.6 and 1.0 ft/sec in the 0-30 deg. AOA range to determine the influence of flow Reynolds number on vortex trajectory/interaction and breakdown. (2) Laser Doppler Velocimetry studies of the flowfield to gain a better understanding of the vortex structure and verify the flow visualisation results. Comparison of the test results at these tunnel speeds (corresponding to nominal flow Reynolds number of 15,000, 45,000, and 75,000 indicates a change in the vortical flowfield structure. The strake and wing vortices do not coil up and the breakdown occurs earlier as the tunnel speed is increased.The trends in he interaction and bursting data at higher tunnel speeds appear to be in better agreement with previous wind tunnel data. Subjects: |
Language | English |
Publication date |
March 1996 publication_date QS:P577,+1996-03-00T00:00:00Z/10 |
Current location |
IA Collections: navalpostgraduateschoollibrary; fedlink |
Accession number |
awatertunnelinve1094532152 |
Source | |
Permission (Reusing this file) |
Approved for public release, distribution unlimited |
Licensing[edit]
Public domainPublic domainfalsefalse |
This work is in the public domain in the United States because it is a work prepared by an officer or employee of the United States Government as part of that person’s official duties under the terms of Title 17, Chapter 1, Section 105 of the US Code.
Note: This only applies to original works of the Federal Government and not to the work of any individual U.S. state, territory, commonwealth, county, municipality, or any other subdivision. This template also does not apply to postage stamp designs published by the United States Postal Service since 1978. (See § 313.6(C)(1) of Compendium of U.S. Copyright Office Practices). It also does not apply to certain US coins; see The US Mint Terms of Use.
|
||
This file has been identified as being free of known restrictions under copyright law, including all related and neighboring rights. |
https://creativecommons.org/publicdomain/mark/1.0/PDMCreative Commons Public Domain Mark 1.0falsefalse
File history
Click on a date/time to view the file as it appeared at that time.
Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 22:51, 14 July 2020 | 1,275 × 1,650, 203 pages (9.98 MB) | Fæ (talk | contribs) | FEDLINK - United States Federal Collection awatertunnelinve1094532152 (User talk:Fæ/IA books#Fork8) (batch 1993-2020 #8873) |
You cannot overwrite this file.
File usage on Commons
The following page uses this file:
Metadata
This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.
Short title |
|
---|---|
Author | Fritzelas, Anastasios E. |
Date and time of digitizing | 14:31, 2 January 2003 |
Software used | LuraDocument PDF Compressor Server 5.7.66.46 (original: tif_convert_2_ps()) |
File change date and time | 17:20, 11 April 2013 |
Date metadata was last modified | 17:20, 11 April 2013 |
Conversion program | Adobe Acrobat 10.1.6 Paper Capture Plug-in |
Encrypted | no |
Page size | 612 x 792 pts (letter) |
Version of PDF format | 1.4 |