One-Dimensional Modeling of the Cavitating Nozzle

May 28 [Tue], 2013, 11:54
This is a rather bold assumption, that this coefficient of contraction, as predicted by potential flow theory, should apply at a cavitating nozzle. However, Numachi et aliae.[1960] measured Cc in cavitating and non-cavitating flatplate orifices and located that this contraction size wouldn't change with all the occurrence of cavitation. Nurick does however be aware that the significance of Cc changes somewhat with upstream geometry. Pencil Nozzle
Because flow experiences no wall shear inside the contraction, we increase the risk for assumption that there's no radial variation from the velocity Vc at point c. We further assume that density on the liquid phase is constant and this inter-phase mass transfer is negligible. Nozzle DSLA145P269
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