Figure Displacement due to transverse vibrations along the transducer in the z –direction. In Figure 5.12, the wave propagation on the is investigated. The radius y-z distribution range is 1-10 µm, whereas the bubble volume fraction is increased. Similar conclusions to the one made regarding the results in Figure 5.8 can be made. The wavelength decreases with increasing the bubble volume fraction and the attenuation gets higher. The cases and produce similar peak β=0.005% β=0.01% amplitude values; though the pressure profiles are significantly different. Figure Wave distribution for the plane (p∞=101kPa). Effect of bubble y-z volume fraction (R=1-10 µm). In Figure 5.13, the results are presented for the case of bubble radius range 5-50 µm. High damping is observed for larger values of bubble volume fraction. For example, the pressure amplitude decreases down to O(p∞) for In comparison with β=0.02%. Figure 5.12, one can notice that the amount of dissipation is higher for this distribution of bubbles. Figure Wave distribution for the plane (p∞=101kPa). Effect of bubble y-z volume fraction (R=5-50 µm).
Figure Displacement due to transverse vibrations along the transducer in the z –direction. In Figure 5.12, the wave propagation on the y-z is investigated. The radius distribution range is 1-10 µm, whereas the bubble volume fraction is increased. Similar conclusions to the one made regarding the results in Figure 5.8 can be made. The wavelength decreases with increasing the bubble volume fraction and the attenuation gets higher. The cases β=0.005% and β=0.01% produce similar peak amplitude values; though the pressure profiles are significantly different. Figure Wave distribution for the y-z plane (p∞=101kPa). Effect of bubble volume fraction (R=1-10 µm). In Figure 5.13, the results are presented for the case of bubble radius range 5-50 µm. High damping is observed for larger values of bubble volume fraction. For example, the pressure amplitude decreases down to O(p∞) for β=0.02%. In comparison with Figure 5.12, one can notice that the amount of dissipation is higher for this distribution of bubbles. Figure Wave distribution for the y-z plane (p∞=101kPa). Effect of bubble volume fraction (R=5-50 µm).
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