Acoustic streaming phenomena of ultrasound propagation through liquid media was investigated experimentally employing particle image velocimetry (PIV). Parameters associated with the ultrasonic processor of ultrasonic amplitude (i.e., acoustic power) and transducer tip diameter (i.e., surface area), as well as, fluid rheology (i.e., water, glycerol solution and CMC solution), were studied for their effects on overall flow behaviour and fluid velocity. PIV yielded velocity gradient maps, demonstrating the acoustic streaming phenomena of ultrasound and its associated flow behaviour as a function of ultrasonic amplitude and fluid rheology, whereby increasing amplitude allowed for greater penetration of the acoustic-beam through the bulk of the fluid, and increasing fluid rheology yielded the converse effect. Moreover, upon impingement of the acoustic-beam with the base of vessel, vortex formation occurred, yielding a recirculation pattern. The maximum observed fluid velocities for water, glycerol solution and CMC solution were 0.329 m s^-1, 0.423 m s^-1, and 0.304 m s^-1, respectively (large diameter sonotrode tip for an ultrasonic amplitude of 80%). Furthermore, shear rates were attained (maximum values of 24.25 s^-1), and Reynolds numbers were determined in order to assess the degree of turbulence as a function of investigated parameters.

通过使用粒子图像测速仪（PIV）实验研究了超声波在液体介质中传播的声流现象。与超声处理器相关的参数，包括超声幅度（即声功率）和换能器尖端直径（即表面积）以及流体流变学（即（水，甘油溶液和CMC溶液）对整体流动行为和流体速度的影响进行了研究。PIV产生了速度梯度图，证明了超声的声流现象及其相关的流动行为是超声振幅和流体流变学的函数，从而增加振幅可以使声束更大程度地穿透大部分流体，并增加流体流变学产生相反的效果。此外，当声束撞击到容器的底部时，发生了涡旋形成，从而产生了再循环模式。观察到的最大的流体速度为水，甘油溶液和CMC溶液是0.329毫秒^-1，0.423毫秒^-1，和0.304毫秒^-1，（大直径超声波焊头，超声振幅为80％）。此外，获得了剪切速率（最大值为24.25 s ^-1），并确定了雷诺数以评估湍流度与所研究参数的关系。