Flow visualization and the three-dimensional flow in an axial-flow pump
| Autor: | W. A. Straka, W. C. Zierke |
|---|---|
| Rok vydání: | 1996 |
| Předmět: |
Flow visualization
Engineering Lift coefficient Axial-flow pump business.industry Mechanical Engineering Aerospace Engineering Mechanics Vortex Physics::Fluid Dynamics Fuel Technology Space and Planetary Science Parasitic drag Incompressible flow Horseshoe vortex Streamlines streaklines and pathlines business Simulation |
| Zdroj: | Journal of Propulsion and Power. 12:250-259 |
| ISSN: | 1533-3876 0748-4658 |
| DOI: | 10.2514/3.24021 |
| Popis: | Surface flow visualization on an axial-flow pump results in patterns of the skin-friction lines on various surfaces and these patterns provide important insight into the topology of the three-dimensional flowfield. In particular, critical points and lines within the patterns give characteristics of three-dimensi onal separation and the formation of vortical structures. Here, oil-paint tests show the topology for the formation of horseshoe vortices, the structure of three-dimensional corner separation, the initial development of a rotor tip leakage vortex, and the development of other important secondary flows. Surface flow visualization can also provide information concerning boundary-layer transition. In summary, the surface flow visualization experiment presented in this article allows one to give a fairly detailed description of the complex flow within an axial-flow pump. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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