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Analysis of Hotwire and LDA Measurements Across Various Diameters in Fluid Dynamics

This document provides a comprehensive analysis of fluid dynamics measurements utilizing hotwire anemometry and laser Doppler anemometry (LDA) across a range of diameters. It covers mean and root mean square (RMS) values for hotwire measurements, spectral data, and correlations for planar laser-induced fluorescence (PLIF). The study investigates both centreline and shear layer diameters, providing insights into the power spectral density and enstrophy metrics. This research aids in understanding the fluid flow characteristics in various conditions.

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Analysis of Hotwire and LDA Measurements Across Various Diameters in Fluid Dynamics

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  1. Flows

  2. Hotwire Mean Diameter = 0.02 0.25 0.5 0.75 1.0 1.5 2.0 2.5 3 4 6 8

  3. Hotwire rms Diameter = 0.02 0.25 0.5 0.75 1.0 1.5 2.0 2.5 3 4 6 8

  4. Hotwire spectra - centreline Diameter = 0.02 0.25 0.5 0.75 1.0 1.5 2.0 2.5 3 4 6 8

  5. Hotwire spectra - shear layer Diameter = 0.02 0.25 0.5 0.75 1.0 1.5 2.0 2.5 3 4 6 8

  6. LDA – Mean & rms Diameter = 0.02 2.0 4

  7. LDA – Power Spectral Density Centreline: Diameter = 0.02 2.0 4 Shear layer:

  8. PLIF

  9. PLIF – Mean & RMS

  10. PLIF – Mean & RMS

  11. PLIF PDFs AL ATnc Diameter 0.5 1

  12. PLIF PDFs AT HeT HeL Diameter 0.5 1

  13. PLIF - Correlations

  14. PLIF - Correlations

  15. PIV

  16. PIV – Mean & RMS ATnc AL

  17. PIV Mean & rms HeT HeL AT

  18. PIV Scatter Shear layer centreline AL AT AL AT 0.5 1.0

  19. Enstophy AT HeT HeL Atnc AL

  20. Divergence AT HeT HeL Atnc AL

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