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Turbulent structures in wall-bounded shear flows observed via three-dimensional numerical simulators. [using the illiac 4 computer
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Leonard, A. |
| Copyright Year | 1980 |
| Description | Three recent simulations of tubulent shear flow bounded by a wall using the Illiac computer are reported. These are: (1) vibrating-ribbon experiments; (2) study of the evolution of a spot-like disturbance in a laminar boundary layer; and (3) investigation of turbulent channel flow. A number of persistent flow structures were observed, including streamwise and vertical vorticity distributions near the wall, low-speed and high-speed streaks, and local regions of intense vertical velocity. The role of these structures in, for example, the growth or maintenance of turbulence is discussed. The problem of representing the large range of turbulent scales in a computer simulation is also discussed. |
| File Size | 1885485 |
| Page Count | 31 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19800021121 |
| Archival Resource Key | ark:/13960/t6f23rz4w |
| Language | English |
| Publisher Date | 1980-07-01 |
| Access Restriction | Open |
| Subject Keyword | Fluid Mechanics And Heat Transfer Turbulence Fourier Transformation Digital Simulation Illiac 4 Computer Shear Flow Flow Distribution Vorticity Computerized Simulation Velocity Distribution Boundary Layers Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
