A designed laminar flow nozzle issues reactants into a focused laser beam. Critical nozzle geometry was derived using Computational Fluid Dynamics (CFD) code. To verify the computational model, Hot Wire Anemometry (HWA) was used to measure the fluid velocity profile. The goal was to design a nozzle that had a top-hat velocity profile (not the standard laminar parabolic) relative to the focused laser beam thickness. Computational model, theory and experiment are shown in a single Origin scatter plot.
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