Loading...
Please wait, while we are loading the content...
Similar Documents
Streakline flow visualization study of a horseshoe vortex in a large-scale, two-dimensional turbine stator cascade
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Russell, L. M. Gaugler, R. E. |
| Copyright Year | 1979 |
| Description | Neutrally bouyant helium-filled bubbles were observed as they followed the streamlines in a horseshoe vortex system around the vane leading edge in a large scale, two dimensional, turbine stator cascade. Inlet Reynolds number, based on true chord, ranged between 100,000 to 300,000. Bubbles were introduced into the endwall boundary layer through a slot upstream of the vane leading edge. The paths of the bubbles were recorded photographically as streaklines on 16 mm movie film. Individual frames from the film were selected, and overlayed to show the details of the horseshoe vortex around the leading edge. The transport of the vortex across the passage near the leading edge is clearly seen when compared to the streaks formed by bubbles carried in the main stream. Limiting streamlines on the endwall surface were traced by the flow of oil drops. |
| File Size | 3291429 |
| Page Count | 20 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19800003129 |
| Archival Resource Key | ark:/13960/t6f23rt24 |
| Language | English |
| Publisher Date | 1979-01-01 |
| Access Restriction | Open |
| Subject Keyword | Fluid Mechanics And Heat Transfer Cascade Flow Vortices Flow Visualization Stators Streak Photography Two Dimensional Flow Secondary Flow Leading Edges Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
