A Boundary Layer Study On Hypersonic Nozzles
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Author | : Dennis M. Bushnell |
Publisher | : |
Total Pages | : 44 |
Release | : 1969 |
Genre | : Aerodynamics, Hypersonic |
ISBN | : |
Turbulent boundary layer measurements on axisymmetric hypersonic nozzle walls.
Author | : Joseph H. Kemp |
Publisher | : |
Total Pages | : 116 |
Release | : 1972 |
Genre | : Aerodynamics, Hypersonic |
ISBN | : |
The nozzle wall boundary layer of an M-50 helium tunnel was investigated with pitot pressure, total temperature, skin friction, and wall heat transfer measurements at five stations and hot wire measurements at two stations. The results indicated that the boundary layer was turbulent with a thick viscous sublayer. Pressure gradients were observed across the boundary layer; the effect of these gradients on the equations of motion are discussed. The direct skin friction measurements were higher than expected from empirical predictions; the Reynolds analogy factors however were lower than expected. Hot wire measurements indicated mass flow fluctuations as large as 80 percent of the local mean mass flow at the edge of the viscous sublayer with a maximum value relative to the edge mass flow of about 15 percent at gamma about equal to 0.8.
Author | : |
Publisher | : |
Total Pages | : 460 |
Release | : 1972 |
Genre | : |
ISBN | : |
Author | : Wayne Douglas Erickson |
Publisher | : |
Total Pages | : 190 |
Release | : 1960 |
Genre | : Aerodynamics, Hypersonic |
ISBN | : |
Author | : |
Publisher | : |
Total Pages | : 580 |
Release | : 1969 |
Genre | : Compressibility |
ISBN | : |
Author | : Frank W. Spaid |
Publisher | : |
Total Pages | : 116 |
Release | : 1995 |
Genre | : |
ISBN | : |
Author | : Holger Babinsky |
Publisher | : Cambridge University Press |
Total Pages | : 481 |
Release | : 2011-09-12 |
Genre | : Technology & Engineering |
ISBN | : 1139498649 |
Shock wave-boundary-layer interaction (SBLI) is a fundamental phenomenon in gas dynamics that is observed in many practical situations, ranging from transonic aircraft wings to hypersonic vehicles and engines. SBLIs have the potential to pose serious problems in a flowfield; hence they often prove to be a critical - or even design limiting - issue for many aerospace applications. This is the first book devoted solely to a comprehensive, state-of-the-art explanation of this phenomenon. It includes a description of the basic fluid mechanics of SBLIs plus contributions from leading international experts who share their insight into their physics and the impact they have in practical flow situations. This book is for practitioners and graduate students in aerodynamics who wish to familiarize themselves with all aspects of SBLI flows. It is a valuable resource for specialists because it compiles experimental, computational and theoretical knowledge in one place.
Author | : Max Kinslow |
Publisher | : |
Total Pages | : 40 |
Release | : 1973 |
Genre | : Hypersonic wind tunnels |
ISBN | : |
The potential value of controlled boundary-layer removal from the wall of a nozzle for low-density hypersonic flow was investigated in a brief experimental program. A particular objective was the achievement of sufficient control over boundary-layer thickness to enable a contoured nozzle to be operated under off-design conditions without excessive deterioration of flow uniformity. The nozzle contour was greatly influenced by boundary-layer thickness. Boundary-layer removal involved suction through perforated walls where local nozzle static pressures exceeded the pressure in the large tank which enclosed the nozzle and test section.
Author | : |
Publisher | : |
Total Pages | : 702 |
Release | : 1995 |
Genre | : Aeronautics |
ISBN | : |
Author | : Ivan E. Beckwith |
Publisher | : |
Total Pages | : 100 |
Release | : 1971 |
Genre | : Heat |
ISBN | : |
Measurements of total temperature and pitot pressure across boundary layer of test section wall of axisymmetric contoured nozzle at hypersonic speed in nitrogen.