Abstract
This research report details the design, construction, implementation and optimization
of a quantitative movable flow visualization technique named Electronic Speckle
Pattern Interferometry (ESPI).
ESPI is a powerful visualisation technique that can allow for full flowfield analysis. It
is thus possible to quantitatively determine the refractive index variation and hence
the density variation in a compressible gas flow.
Complementary results between previous work done and the current work shows the
integrity of ESPI results
Flowfields that were investigated included – candle flame, axis symmetric and nonaxis
symmetric nozzles.
Due to advanced CCD technology, there have been improvements in the overall
image quality. Post processing of the images produced clearer images and hence
better results.
The technique was applied on multiple test rigs, proving its versatility
| Identifer | oai:union.ndltd.org:netd.ac.za/oai:union.ndltd.org:wits/oai:wiredspace.wits.ac.za:10539/4748 |
| Date | 09 April 2008 |
| Creators | Michal, Eli |
| Source Sets | South African National ETD Portal |
| Language | English |
| Detected Language | English |
| Type | Thesis |
| Format | 71639556 bytes, application/pdf, application/pdf |
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