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Axial acoustic field along a solid-liquid fluidized bed under power ultrasound

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Academic year: 2021

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Fig. 2. Hydrophone sensitivity [33].
Fig. 4. E ff ect of the signal duration – (A) on the fundamental peak magnitude – (B) on the broadband noise contribution to the signal power.
Fig. 6. Repeatability of the RMS pressure vs. axial distance from the emitter curves (emitted US power = 150 W, no solid and no liquid flow, 3 repetitions): (A) Total spectrum, (B) Fundamental, (C) (sub/ultra) Harmonics and (D) Broad-band noise.
Fig. 10. Effect of emitted US power on the axial evolution of the RMS pressure calculated over different spectrum parts – case of non-flowing liquid – (A) Fundamental frequency – (B) Total spectrum – (C) (sub/ultra) harmonics – (D) Broad-band noise.
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