Abstract
Issues relevant to acetone fluorescence imaging for mixing measurements in gas-gas and liquid-gas systems, such as the advantages of acetone, droplet detection and temperature dependence of acetone fluorescence, are discussed. Preliminary gas-gas mixing measurements, using a 384x576 pixel intensified CCD camera with excitation by a KrF excimer laser (248 nm) and a frequency-quad rupled Nd:YAG laser (266 nm), are presented. Preparations for two phase mixing measurements include extending an existing model to calculate the theoretical minimum pixel resolution required to distinguish vapor fluorescence from droplet fluorescence as a function of droplet cutoff size. Modeling results are shown for a nominal test case.
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