The Upper Branch Stability Of Compressible Boundary Layer Flows
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Author | : J. S. B. Gajjar |
Publisher | : |
Total Pages | : 42 |
Release | : 1989 |
Genre | : |
ISBN | : |
Download The Upper-branch Stability of Compressible Boundary Layer Flows Book in PDF, Epub and Kindle
Author | : National Aeronautics and Space Adm Nasa |
Publisher | : Independently Published |
Total Pages | : 38 |
Release | : 2018-10-15 |
Genre | : Science |
ISBN | : 9781728745589 |
Download The Upper-Branch Stability of Compressible Boundary Layer Flows Book in PDF, Epub and Kindle
The upper-branch linear and nonlinear stability of compressible boundary layer flows is studied using the approach of Smith and Bodonyi (1982) for a similar incompressible problem. Both pressure gradient boundary layers and Blasius flow are considered with and without heat transfer, and the neutral eigenrelations incorporating compressibility effects are obtained explicitly. The compressible nonlinear viscous critical layer equations are derived and solved numerically and the results indicate some solutions with positive phase shift across the critical layer. Various limiting cases are investigated including the case of much larger disturbance amplitudes and this indicates the structure for the strongly nonlinear critical layer of the Benney-Bergeon (1969) type. It is also shown how a match with the inviscid neutral inflexional modes arising from the generalized inflexion point criterion, is achieved. Gajjar, J. S. B. and Cole, J. W. Glenn Research Center RTOP 505-62-21
Author | : J. S. B. Gajjar |
Publisher | : |
Total Pages | : 36 |
Release | : 1989 |
Genre | : |
ISBN | : |
Download The Upper-branch Stability of Compressible Boundary Layer Flows Book in PDF, Epub and Kindle
Author | : Nabil M. El-Hady |
Publisher | : |
Total Pages | : 52 |
Release | : 1981 |
Genre | : Boundary layer |
ISBN | : |
Download On the Effect of Boundary Layer Growth on the Stability of Compressible Flows Book in PDF, Epub and Kindle
Author | : Jeffrey William Cole |
Publisher | : |
Total Pages | : |
Release | : 1994 |
Genre | : |
ISBN | : |
Download Hydrodynamic Stability of Compressible Boundary Layer Flows Book in PDF, Epub and Kindle
Author | : |
Publisher | : |
Total Pages | : 0 |
Release | : 1983 |
Genre | : |
ISBN | : |
Download Stability Analysis of the Compressible, Adiabatic Similar Boundary Layer Equations (Lower Branch). Book in PDF, Epub and Kindle
In a previous report the authors analyzed the stability of the lower branch solutions of the incompressible (M sub infinity = O) Falkner-Skan boundary layers. There a perturbation analysis to these boundary layers was performed resulting in the Rayleigh stability equation. Eigen value solutions were obtained for the Rayleigh equation for different adverse pressure gradient (beta) values. All retarded flows were found to be unstable for a small range of frequencies with the amplification factor increasing as the extent of reversed flow increased. In this report they have entended that work by including the effect of Mach number M sub infinity on the stability of adiabatic (S sub W = O) Falker-Skan equations for beta = -.04, -.08, -.12, -.16 and -.19884. We found out that in all these cases as the Mach number M sub infinity increases the instability of flow decreases. In most of the cases the instability almost completely disappeared at M sub infinity = 3.
Author | : Eli Reshotko |
Publisher | : |
Total Pages | : 48 |
Release | : 1962 |
Genre | : Aerodynamics |
ISBN | : |
Download Stability of Three-dimensional Compressible Boundary Layers Book in PDF, Epub and Kindle
Author | : Leslie M. Mack |
Publisher | : |
Total Pages | : 406 |
Release | : 1969 |
Genre | : Boundary layer |
ISBN | : |
Download Boundary-layer Stability Theory Book in PDF, Epub and Kindle
Author | : Nabil M. El- Hady |
Publisher | : |
Total Pages | : 44 |
Release | : 1980 |
Genre | : |
ISBN | : |
Download Nonparallel Stability of Three-dimensional Compressible Boundary Layers. Part 1: Stability Analysis Book in PDF, Epub and Kindle
Author | : Nabil M. El-Hady |
Publisher | : |
Total Pages | : 44 |
Release | : 1989 |
Genre | : Boundary layer |
ISBN | : |
Download Spatial Three-dimensional Secondary Instability of Compressible Boundary-layer Flows Book in PDF, Epub and Kindle