A new method for the evaluation of slotted wind tunnel interference parameters applicable to subsonic oscillatory tests-Reference-Cited by-同舟云学术

A new method for the evaluation of slotted wind tunnel interference parameters applicable to subsonic oscillatory tests

Published:1972-07 Issue:739 Volume:76 Page:443-447
ISSN:0001-9240
Container-title:The Aeronautical Journal
language:en
Short-container-title:Aeronaut. j.

Author:

Streather R. A.

Abstract

Until a few years ago it was the practice to neglect lift interference on oscillatory model tests in high-speed subsonic wind tunnels, whatever the working section configuration. However, in 1960 Bratt and Wight discovered a large interference effect on the pitch damping derivative of an M-wing measured in the slotted working section of the 25 in x 20 in tunnel at the National Physical Laboratory. In 1964 Wight reviewed a number of oscillatory tests and showed that in many cases there were significant interference effects on both stiffness and damping derivatives when measured in slotted working sections.

Publisher

Cambridge University Press (CUP)

Subject

Aerospace Engineering

Reference9 articles.

1. Rushton K. R. and Laing Lucy M. Finite difference solutions for an unsteady interference parameter in slotted wind tunnels. Department of Civil Engg. Report, University of Birmingham. October 1968.

2. Bratt J. B. and Wight K. C. Measurements of pitching oscillation derivatives at subsonic and transonic speeds for an M-wing. Interim report. ARC 21 661. February 1960.

3. Davis D. D. and Moore D. Analytical study of block age and lift-interference corrections for slotted tunnels obtained by the substitution of an equivalent homogeneous boundary for the discrete slots. NACA RM L53E07b (NACA/TIB/3792). June 1953.

4. Garner H. C , Moore A. W. and Wight K. C. The theory of interference effects on dynamic measurements in slotted-wall tunnels at subsonic speeds and comparisons with experiment. ARC, R and M No 3500. 1968.

5. A Review of Slotted-Wall Wind Tunnel Interference Effects on Oscillating Models in Subsonic and Transonic Flows