Abstract
The interaction of oblique shocks and expansion waves with perforated wind tunnel walls at\(M_\infty \underset{\raise0.3em\hbox{$\smash{\scriptscriptstyle\thicksim}$}}{ > } 1\) is theoretically investigated. The conditions in which these perturbations are not reflected from the walls and, consequently, do not distort the flow over the model are found. The results of an experiment which confirmed the theoretical conclusions are presented. A comparison is made with the experimental data of other authors.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
Literature cited
T. Karman, “Similarity law for transonic flow,” in: Gas Dynamics [Russian translation], IL, Moscow (1950), p. 173.
Equations, Tables and Charts for Compressible Flows, NACA Rep. N. 1135 (1948).
V. M. Neiland, “Porosity of perforated wind tunnel walls at transonic velocities,” Uch. Zap. TsAGI,19, 142 (1988).
J. W. Davis, Empirical Technique for Optimisation of Variable Porosity Transonic Wind Tunnel Flows, Dissertation, Ann Arbor, Michigan, USA (1972).
Author information
Authors and Affiliations
Additional information
Translated from Izvestiya Akademii Nauk SSSR, Mekhanika Zhidkosti i Gaza, No. 4, pp. 187–189, July–August, 1989.
Rights and permissions
About this article
Cite this article
Neiland, V.M. Optimum porosity of wind tunnel walls at low supersonic velocities. Fluid Dyn 24, 652–655 (1989). https://doi.org/10.1007/BF01052438
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF01052438