Thesis-2005-Anandarajah.pdf (28.87 MB)
Download fileDigital particle image velocimetry (DPIV): limitations to measurement accuracy
thesis
posted on 09.10.2018, 10:11 authored by Kuberan AnandarajahDPIV is the most commonly employed whole-field measurement technique to
quantify velocity field over a two-dimensional region within a flow. With the
advancements in laser and digital camera technology time-resolved DPIV systems are
now capable of recording digital images at kHz rates, and consequently, providing
high spatial and temporal resolution velocity field data, which can provide turbulence
statistics for the refinement of Computational Fluid Dynamics (CFD) codes. It is
essential, however, the measurement errors associated with time-resolved PIV are
quantified before comparisons with CFD code predictions are attempted.
This thesis has identified, assessed and suppressed the inherent measurement errors
attributable to the random positioning of particle images in an interrogation area,
through a combination of theoretical modelling and experimental verifications. [Continues.]
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- Mechanical, Electrical and Manufacturing Engineering