Aerodynamic Measurements

Aerodynamic measurements presents a comprehensive review of the theoretical bases on which experimental techniques used in aerodynamics are based. Limitations of each method in terms of accuracy, response time and complexity are addressed. This book serves as a guide to choosing the most pertinent technique for each type of flow field including: 1D, 2D, 3D, steady or unsteady, subsonic, supersonic or hypersonic. No book currently presents as many techniques as are presented in this volume. They are usually available in only a short course or in proprietary booklets Offers a critical review of the various methods of aerodynamic measurement and helps guide the reader to choose the most appropriate in each case Describes the evolution of specific techniques from old-fashioned mechanical processes to modern computerized versions aiding students and practitioners to understand results of their findings

Comparison of the measured aerodynamic forces and moments with those predicted by the method of Reissner and by the method of Lawrence and Gerber for wings of aspect ratio 2 in incompressible flow showed generally good agreement. Comparison of the measured quantities with those predicted by two-dimensional-flow theory indicated that the effects of finiteness of span on the aerodynamic forces and moments are considerable. Some experimental results pertaining to the influence of wind-tunnel-wall effects on nonsteady aerodynamic measurement have been included in an appendix.