An Analysis of Data Quality in Transonic Wind Tunnel Testing
Author : Robert Michael Dowgwillo
Publisher :
Page : 135 pages
File Size : 30,8 MB
Release : 1977
Category : Aerodynamics, Transonic
ISBN :
Author : Robert Michael Dowgwillo
Publisher :
Page : 135 pages
File Size : 30,8 MB
Release : 1977
Category : Aerodynamics, Transonic
ISBN :
Author : Colin Britcher
Publisher : Academic Press
Page : 672 pages
File Size : 31,65 MB
Release : 2023-10-20
Category : Technology & Engineering
ISBN : 0128181001
Wind Tunnel Test Techniques: Design and Use at Low and High Speeds with Statistical Engineering Applications provides an up-to-date treatment of the topic. Beginning with a brief history of wind tunnels and its types and uses, the book goes on to cover subsonic, supersonic and hypersonic wind tunnel design and construction, calibration, boundary corrections, flow quality assessment, pressure surveys, and dynamic testing. It also focuses on wind tunnel facilities, making it useful for both the designer and operator. Engineers and graduate students in aerospace, automotive and similar programs will find this book useful in their work with experimental aerodynamics, gas dynamics, facility design and performance. Deals with a broad range of flow speeds in wind tunnels, from low speed to high speed Provides a discussion of similarity laws as well as material on statistical analysis Includes coverage on facility-to-facility and facility-to-CFD correlation Presents advanced topics such as cryogenic wind tunnels, ground simulation in automotive testing, and propulsion testing
Author : Dieter Schimanski
Publisher :
Page : pages
File Size : 24,54 MB
Release : 2000
Category :
ISBN :
Author : B. H. Goethert
Publisher :
Page : 420 pages
File Size : 23,7 MB
Release : 2007
Category : Science
ISBN :
Numerous aspects of transonic aerodynamics include wall interference corrections in conventional wind tunnels, subsonic flow in a variety of wind tunnels, and test results from transonic wind tunnels. 1961 edition.
Author : ADVISORY GROUP FOR AEROSPACE RESEARCH AND DEVELOPMENT NEUILLY-SUR-SEINE (FRAN CE)
Publisher :
Page : 532 pages
File Size : 19,1 MB
Release : 1988
Category :
ISBN :
The wind tunnel continues to be the main instrument for providing experimental aerodynamic data 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 they must have information as to 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. 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. Session topics included: Wind tunnel data comparisons; Uncertainties analysis; Drag accuracy achievements; Facility problems; Simulation problems; Progress in testing techniques; Requirements. Keywords: Wind tunnel test methods; West Germany; Great Britain; france; Transonic airfoils; Wing body configurations; Wind tunnel models; Jet transport aircraft; Aerodynamics; Transonic Wind tunnels; Measurement uncertainty; Aerodynamic drag estimates; Civil aviation; Unsteady flow; Wind tunnel nozzle design; Boundary layer interference; Wind tunnel walls; Computational fluid dynamics; Air flow corrections; Reynolds number; Boundary layer transition; Hypersonic wind tunnels; Flow fields; Computerized thermography; Boundary layer separation. NATO furnished. (edc).
Author : W. H. Shafer
Publisher : Springer Science & Business Media
Page : 319 pages
File Size : 26,39 MB
Release : 2012-12-06
Category : Science
ISBN : 1468433814
Masters Theses in the Pure and Applied Sciences was first conceived, published, and dis seminated by the Center for Information and Numerical Data Analysis and Synthesis (CINDAS) * at Purdue University in 1957, starting its coverage of theses with the academic year 1955. Beginning with Volume 13, the printing and dissemination phases of the ac tivity were transferred to University Microfilms/Xerox of Ann Arbor, Michigan, with the thought that such an arrangement would be more beneficial to the academic and general scientific and technical community. After five years of this joint undertaking we had concluded that it was in the interest of all concerned if the printing and distribution of the volume were handled by an international publishing house to assure improved service and broader dissemination. Hence, starting with Volume 18, Masters Theses in the Pure and Applied Sciences has been disseminated on a worldwide basis by Plenum Publishing Corporation of New York, and in the same year the coverage was broadened to include Canadian universities. All back issues can also be ordered from Plenum. We have reported in Volume 22 (thesis year 1977) a total of 10,658 theses titles from 28 Canadian and 227 United States universities. We are sure that this broader base for theses titles reported will greatly enhance the value of this important annual reference work. While Volume 22 reports theses submitted in 1977, on occasion, certain universities do report theses submitted in previous years but not reported at the time.
Author : John Preston Hidore
Publisher :
Page : pages
File Size : 22,93 MB
Release : 2013
Category :
ISBN :
Achieving high quality, consistency, and testing efficiency in wind tunnel tests using internal balances is accomplished through the use of new testing methods, analysis of data output, and standardized documentation of test procedures at the Texas A&M Low Speed Wind Tunnel. The wind tunnel is capable of performing internal balance testing on models that experience less than 500 pounds of normal force. Testing has shown less than a 3% mean flow variation with the sting mount installed and a turbulence intensity of less than 0.25%. Documentation of procedures and check- lists for installation of internal balance testing equipment and test execution provide higher efficiency and consistency during a test. A step-by-step examination of the data analysis routines and associated uncertainty equations show uncertainty in the force and moment coefficients for the Mark XIII internal balance to be approximately ± 0.05 and ± 0.02, respectively. Quantifying the uncertainty of the primary output parameters and showing repeatability of the data within the defined uncertainty limits achieved higher quality results. The electronic version of this dissertation is accessible from http://hdl.handle.net/1969.1/149384
Author : Pamela N. Stewart
Publisher :
Page : 36 pages
File Size : 35,63 MB
Release : 1990
Category : Transonic wind tunnels
ISBN :
Author : North Atlantic Treaty Organization. Advisory Group for Aerospace Research and Development
Publisher :
Page : pages
File Size : 13,94 MB
Release : 1987
Category :
ISBN :
Author : Rodman N. Leach
Publisher :
Page : 26 pages
File Size : 13,50 MB
Release : 1958
Category : Data reduction
ISBN :
The method of data reduction employed for dynamic stability wind-tunnel tests is discussed and suggestions to improve the quality of the data are made.