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Unsteady boundary-layer injection
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Jones, G. S. Telionis, D. P. |
| Copyright Year | 1981 |
| Description | The boundary-layer equations for two-dimensional incompressible flow are integrated numerically for the flow over a flat plate and a Howarth body. Injection is introduced either impulsively or periodically along a narrow strip. Results indicate that injection perpendicular to the wall is transmitted instantly across the boundary layer and has little effect on the velocity profile parallel to the wall. The effect is a little more noticeable for flows with adverse pressure gradients. Injection parallel to the wall results in fuller velocity profiles. Parallel and oscillatory injection appears to influence the mean. The amplitude of oscillation decreases with distance from the injection strip but further downstream it increases again in a manner reminiscent of an unstable process. |
| File Size | 1427037 |
| Page Count | 38 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19830009566 |
| Archival Resource Key | ark:/13960/t5k980x8j |
| Language | English |
| Publisher Date | 1981-08-01 |
| Access Restriction | Open |
| Subject Keyword | Fluid Mechanics And Heat Transfer Incompressible Flow Laminar Boundary Layer Numerical Integration Flat Plates Computational Fluid Dynamics Injection Unsteady Flow Boundary Layer Control Boundary Layer Equations Pressure Gradients Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
