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Unsteady three-dimensional marginal separation, including breakdown
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Duck, Peter W. |
| Copyright Year | 1990 |
| Description | A situation involving a three-dimensional marginal separation is considered, where a (steady) boundary layer flow is on the verge of separating at a point (located along a line of symmetry/centerline). At this point, a triple-deck is included, thereby permitting a small amount of interaction to occur. Unsteadiness is included within this interaction region through some external means. It is shown that the problem reduces to the solution of a nonlinear, unsteady, partial-integro system, which is solved numerically by means of time-marching together with a pseudo-spectral method spatially. A number of solutions to this system are presented which strongly suggest a breakdown of this system may occur, at a finite spatial position, at a finite time. The structure and details of this breakdown are then described. |
| File Size | 736680 |
| Page Count | 32 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19900011021 |
| Archival Resource Key | ark:/13960/t6tx87c1j |
| Language | English |
| Publisher Date | 1990-02-01 |
| Access Restriction | Open |
| Subject Keyword | Fluid Mechanics And Heat Transfer Boundary Layer Separation Viscosity Steady Flow Kinematics Nonlinearity Separated Flow Three Dimensional Models Spectral Methods Cross Flow Boundary Layer Flow 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 |
