d) A microPIV experiment is performed recording a region with a depth of correlation of 2 microns, and a time interval b

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D A Micropiv Experiment Is Performed Recording A Region With A Depth Of Correlation Of 2 Microns And A Time Interval B 1 (74.86 KiB) Viewed 47 times

d) A microPIV experiment is performed recording a region with a depth of correlation of 2 microns, and a time interval between image pairs of 20 ms. The particles used are 500nm in size, and the test is performed at room temperature (20 °C). Discuss the likelihood of tracer particles blurring the correlation peak by diffusing in or out of the recording region during the acquisition of image pairs (provide quantitative data to support your argument) [8 Marks) NOTE: kBT = 6Ditau where kb is the Boltzman constant (1.38 x 10-23 m² kg s2 K-), T temperature, D the diffusivity, a the particle radius, and u the viscosity. The properties of dionized water are as follows: density 1000 kg/m², viscosity 8.9x10-4 Pa s.