Supersonic Wind Tunnels
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Author | : Bruno Chanetz |
Publisher | : Springer Nature |
Total Pages | : 329 |
Release | : 2020-01-03 |
Genre | : Science |
ISBN | : 3030355624 |
This book presents experimental techniques in the field of aerodynamics, a discipline that is essential in numerous areas, such as the design of aerial and ground vehicles and engines, the production of energy, and understanding the wind resistance of buildings. Aerodynamics is not only concerned with improving the performance and comfort of vehicles, but also with reducing their environmental impact. The book provides updated information on the experimental and technical methods used by aerodynamicists, engineers and researchers. It describes the various types of wind tunnels – from subsonic to hypersonic – as well as the problems posed by their design and operation. The book also focuses on metrology, which has allowed us to gain a detailed understanding of the local properties of flows, and examines current developments toward creating a methodology combining experiments and numerical simulations: the computer-assisted wind tunnel. Lastly, it offers an overview of experimental aerodynamics based on a prospective vision of the discipline, and discusses potential futures challenges. The book can be used as a textbook for graduate courses in aerodynamics, typically offered to students of aerospace and mechanical engineering programs, and as a learning tool for professionals and engineers in the fields of aerodynamics, aeronautics and astronautics automobile.
Author | : Rudolf Hermann |
Publisher | : |
Total Pages | : 90 |
Release | : 1950 |
Genre | : Wind tunnels |
ISBN | : |
In the wind tunnel arrangement under consideration, the air leaves the Laval nozzle as a free jet and is recaptured by the diffuser, which is of the convergent-divergent design. A theoretical analysis of the flow process through this type of supersonic wind tunnel is presented and the diffuser efficiency is calculated for the case of equilibrium between test chamber pressure and pressure in the nozzle exit, assuming one-dimensional, in viscous, steady flow. Using the basic equations of continuity, energy and momentum flux through a bounding surface, an exact solution of the problem is obtained, which is applicable up to Mach number infinite. One of the basic results is, that in the recapturing zone of the diffuser a transition occurs from supersonic to subsonic flow, which is followed by an acceleration in the convergent portion up to sonic velocity at the second throat. The transition is not a normal shock and involves a total pressure loss greater than that of a normal shock at the test section Mach number. A mathematical solution with supersonic velocity after the transition process has no physical existence. A comprehensive comparison of the analytical results with available experiments in supersonic wind tunnels up to Mach number 4.4 regarding diffuser efficiency and second throat area shows good agreement.
Author | : Luigi Crocco |
Publisher | : |
Total Pages | : 236 |
Release | : 1946 |
Genre | : Aerodynamics, Supersonic |
ISBN | : |
The importance assumed in recent times by experimental supersonic wind tunnels, as well as the power required, has brought about the need for a study which would permit a comparison of the types tested and the principal theoretical plans.
Author | : |
Publisher | : |
Total Pages | : 36 |
Release | : 1948 |
Genre | : Supersonic wind tunnels |
ISBN | : |
Author | : Donald D. Baals |
Publisher | : |
Total Pages | : 218 |
Release | : 1981 |
Genre | : Aerodynamics |
ISBN | : |
Author | : Alan Pope |
Publisher | : |
Total Pages | : |
Release | : 1978 |
Genre | : |
ISBN | : |
Author | : Donald D. Baals |
Publisher | : |
Total Pages | : 172 |
Release | : 1981 |
Genre | : Government publications |
ISBN | : |
Author | : Klaus Oswatitsch |
Publisher | : |
Total Pages | : 30 |
Release | : 1948 |
Genre | : Diffusers |
ISBN | : |
Author | : T. D. Buchanan |
Publisher | : |
Total Pages | : 52 |
Release | : 1983 |
Genre | : Hypersonic wind tunnels |
ISBN | : |
Author | : E. Dearden |
Publisher | : |
Total Pages | : 6 |
Release | : 1944 |
Genre | : |
ISBN | : |