Jh. Xing et al., EXPERIMENTAL INVESTIGATION OF CAPILLARY INSTABILITY - RESULTS ON JET STIMULATED BY PRESSURE MODULATIONS, Experiments in fluids, 20(4), 1996, pp. 302-313
We investigate the behaviour of a liquid jet stimulated by pressure di
sturbances using a photometric measurement of the jet shadow width. Tw
o apparatuses involving lights of different nature are utilized and me
asurements are taken from the exit of the nozzle to drop breakoff for
different operating conditions. Fourier analysis is applied to charact
erize the spatial evolution of the jet shape. In contrast to previous
studies where only amplitudes of the Fourier modes are reported, phase
shifts are also recovered for low and high initial perturbations. We
show that the spatial reconstruction of the jet from the temporal Four
ier analysis at different abscissae is in excellent agreement with the
experimental profiles.