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Boundary-layer receptivity due to a wall suction and control of tollmien-schlichting waves
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Duck, P. W. Bodonyi, R. J. |
| Copyright Year | 1990 |
| Description | A numerical study of the generation of Tollmien-Schlichting (T-S) waves due to the interaction between a small free-stream disturbance and a small localized suction slot on an otherwise flat surface was carried out using finite difference methods. The nonlinear steady flow is of the viscous-inviscid interactive type while the unsteady disturbed flow is assumed to be governed by the Navier-Stokes equations linearized about this flow. Numerical solutions illustrate the growth or decay of T-S waves generated by the interaction between the free-stream disturbance and the suction slot, depending on the value of the scaled Strouhal number. An important result of this receptivity problem is the numerical determination of the amplitude of the T-S waves and the demonstration of the possible active control of the growth of T-S waves. |
| File Size | 870995 |
| Page Count | 40 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19910000696 |
| Archival Resource Key | ark:/13960/t3tt9ht2p |
| Language | English |
| Publisher Date | 1990-09-01 |
| Access Restriction | Open |
| Subject Keyword | Aerodynamics Suction Strouhal Number Steady Flow Unsteady Flow Two Dimensional Flow Navier-stokes Equation Slots Incompressible Flow Numerical Analysis Finite Difference Theory Tollmien-schlichting Waves Nonlinearity Flat Surfaces Free Flow Active Control Walls Viscous Flow Boundary Layer Flow Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
