Author:
Baker G. R.,Barker S. J.,Bofah K. K.,Saffman P. G.
Abstract
A series of measurements of trailing vortices behind lifting hydrofoils is described. These measurements were made in the Caltech Free-Surface Water Tunnel, using a laser-Doppler velocimeter to measure two components of velocity in the vortex wake. Two different model planforms were tested, and measurements were made at several free-stream velocities and angles of attack for each. Velocity profiles were measured at distances downstream of the model of from five to sixty chord lengths. These measurements are the first results of a continuing experimental programme.In § 3 of this paper, the theory of trailing vortices is discussed. The effects of ‘vortex wandering’ upon the measurements are computed, and the corrected results are seen to be in reasonable agreement with the theory.
Publisher
Cambridge University Press (CUP)
Subject
Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics
Reference15 articles.
1. Saffman, P. G. 1974 The structure and decay of trailing vortices. (To be published.)
2. Orloff, K. & Grant, G. 1973 The application of a scanning laser-doppler velocimeter to trailing vortex definition and alleviation.A.I.A.A. Paper, no. 73–680.
3. Lezius, D. 1973 Study of the far wake vortex field generated by a rectangular airfoil in a water tank.A.I.A.A. Paper, no. 73–682.
4. Wang, C. 1972 Appl. Phys. Lett. 20,339.
5. Caiger, B. & Gould, D. 1971 An analysis of flight measurements in the wake of a jet transport aircraft. In Aircraft Wake Turbulence and its Detection (ed. Olsen ),pp.125–136.Plenum.
Cited by
123 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献