Interference-free wind-tunnel flows by adaptive-wall technologyThe adaptive-wall or self-correcting wind tunnel has been proposed for such regimes as transonic and V/STOL where wall effects are large and cannot be corrected for. The power and generality of the concept are pointed out. In a two-dimensional transonic embodiment in the Calspan One-Foot Tunnel, the scheme has been shown to work at lower transonic Mach numbers. Several practical problems are cited, including instrumentation, the nature of the wall modification, and convergence of the iterative procedure. Moreover, questions of shock-wave neutralization at the wall and probable configuration of three-dimensional embodiments are discussed.
Document ID
19760064385
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Sears, W. R. (Arizona, University Tucson, Ariz., United States)
Vidal, R. J. (Arizona Univ. Tucson, AZ, United States)
Erickson, J. C., Jr. (Arizona Univ. Tucson, AZ, United States)
Ritter, A. (Calspan Corp. Buffalo, N.Y., United States)
Date Acquired
August 8, 2013
Publication Date
October 1, 1976
Subject Category
Research And Support Facilities (Air)
Report/Patent Number
ICAS PAPER 76-02
Meeting Information
Meeting: Congress
Location: Ottawa
Country: Canada
Start Date: October 3, 1976
End Date: October 8, 1976
Sponsors: International Council of the Aeronautical Sciences