The Effects Of Boundary Layer Separation Upon Vehicle Stability In The Subsonic And Transonic Flow Regimes A Review Of Recent Literature
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Author | : Bernard M. Leadon |
Publisher | : |
Total Pages | : 56 |
Release | : 1971 |
Genre | : |
ISBN | : |
Download The Effects of Boundary Layer Separation Upon Vehicle Stability in the Subsonic and Transonic Flow Regimes - A Review of Recent Literature Book in PDF, Epub and Kindle
The literature relating to vehicle stability was searched for papers in which flow separation from aerodynamic surfaces is explicitly studied. Data were found usually to deal with Magnus forces and moments, roll-yaw coupling, roll lock-in, and similar phenomena of less than obvious origins. Ample justification for detailed examination of boundary layers and of nonlinear equations of motion is offered by these examples since these are vehicle characteristics which are at present unpredictable primarily because three-dimensional boundary layer behavior is not well understood. Some examples of methods of numerical analysis of flight test data which aim at the extraction of the nonlinear coefficients of the equations of motion are cited. Finally, a background of well-established boundary layer theory is presented, and the advances of the past few years are reviewed. (Author).
Author | : Barney Hugh Little |
Publisher | : |
Total Pages | : 60 |
Release | : 1967 |
Genre | : Boundary layer |
ISBN | : |
Download Effects of Initial Turbulent Boundary Layer on Shock-induced Separation in Transonic Flow Book in PDF, Epub and Kindle
Author | : Albert L. Braslow |
Publisher | : |
Total Pages | : 48 |
Release | : 1959 |
Genre | : Numerical analysis |
ISBN | : |
Download Effect of Distributed Three-dimensional Roughness and Surface Cooling on Boundary-layer Transition and Lateral Spread of Turbulence at Supersonic Speeds Book in PDF, Epub and Kindle
Author | : J. A. Benek |
Publisher | : |
Total Pages | : 34 |
Release | : 1973 |
Genre | : Aerodynamics, Transonic |
ISBN | : |
Download A Mehod for the Prediction of the Effects of Free-stream Disturbances on Boundary-layer Transition Book in PDF, Epub and Kindle
A semiempirical expression for boundary-layer transition location is developed based on the concept of a critical ratio of inertial to viscous shearing stresses at laminar breakdown. Extensive comparisons between predicted and measured transition locations on a 10-deg included-angle cone at transonic speeds are shown with the data predicted to within 10%. Comparisons are also made with low subsonic and supersonic data which indicate the method is extendible to these flow regimes. (Author).
Author | : H. H. Pearcey |
Publisher | : |
Total Pages | : |
Release | : 1954 |
Genre | : |
ISBN | : |
Download Note on the Effects of Boundary-layer Separation in Transonic Flight and on the Possible Uses of Boundary-layer Control Book in PDF, Epub and Kindle
Author | : |
Publisher | : |
Total Pages | : 0 |
Release | : 1967 |
Genre | : |
ISBN | : |
Download Effects of Initial Turbulent Boundary Layer on Shock-induced Separation in Transonic Flow Book in PDF, Epub and Kindle
Author | : Jamal A. Masad |
Publisher | : |
Total Pages | : 56 |
Release | : 1994 |
Genre | : |
ISBN | : |
Download Stability of Separating Subsonic Boundary Layers Book in PDF, Epub and Kindle
Author | : |
Publisher | : |
Total Pages | : 324 |
Release | : 1992 |
Genre | : Aeronautics |
ISBN | : |
Download Scientific and Technical Aerospace Reports Book in PDF, Epub and Kindle
Author | : Kojiro Suzuki |
Publisher | : |
Total Pages | : 17 |
Release | : 1995 |
Genre | : Aerodynamics |
ISBN | : |
Download Experimental Studies on Boundary-layer Transition on a Reentry Vehicle of Transonic and Supersonic Speeds Book in PDF, Epub and Kindle
The boundary-layer transition on the EXPRESS reentry capsule at transonic and supersonic speeds is studied experimentally by the wind tunnel tests. For the diagnostic of the turbulent transition of the boundary-layer, the China-clay method is used. The experimental results clarify that when the freestream Mach number increases, the transition point moves downstream on the body surface and the distance between the beginning of the transition and its completion to the fully turbulent flow becomes larger. The effects of the freestream Mach number on the location of the boundary-layer transition are described successfully in terms of two non-dimensional quantities, that is, the transition Reynolds number and the local Mach number at the boundary-layer edge. The oil-flow pictures reveal that in the transonic regime, the separation bubble is formed at the junction between the blunt nose and the conical part of the body and therefore the transition begins behind the reattachment point of the separation bubble. The effects of the turbulent transition on the aerodynamic characteristics of the reentry body are investigated by using the technique of the boundary-layer trip and the experimental results show that the aerodynamic characteristics of the EXPRESS reentry vehicle are not sensitive to the boundary-layer transition.
Author | : Jamal Ahmad Masad |
Publisher | : |
Total Pages | : 56 |
Release | : 1994 |
Genre | : Boundary layer |
ISBN | : |
Download Stability of Separating Subsonic Boundary Layers Book in PDF, Epub and Kindle