Vortex dynamics in the wake of a mechanical fish |
| |
Authors: | Christoph Brücker Horst Bleckmann |
| |
Institution: | (1) Fluids Laboratory for Aeronautical and Industrial Research (FLAIR) Department of Mechanical Engineering, Monash University, P.O. Box 31, Clayton, 3800, Australia |
| |
Abstract: | A novel Stereo PIV technique, with improvements over other techniques, is presented. The key feature of the new technique
is the direct measurement of calibration data at each point in space on the measurement grid, so that no interpolation is
necessary. This is achieved through the use of a contiguous target which can be analysed using standard PIV processing software.
The technique results in three-dimensional measurements of high accuracy with a significantly simpler calibration phase. This
has the benefit of improving ease of use and reducing the time taken to obtain data. Thorough error analysis shows that while
previously-described error trends are correct, additional facets of the technique can be optimised to allow highly accurate
results. The new technique is rigorously validated here using pure translation and rotation test cases. Finally, the technique
is used to measure a complex swirling flow within a cylindrical vessel. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|