The advantage of ultrasonic fields in harmless and label-free applications intrigued researchers to develop this technology. The capability of acoustofluidic technology for medical applications has not been thoroughly analyzed and visualized. Toward efficient design, in this research, flowing fluid in a microchannel excited by acoustic waves is fully investigated. To study the behavior of acoustic streaming, the main interfering parameters such as inlet velocity, working frequency, displacement amplitude, fluid buffer material, and hybrid effect in a rectangular water-filled microchannel actuated by standing surface acoustic waves are studied. Governing equations for acoustic field and laminar flow are derived employing perturbation theory. For each set of equations, appropriate boundary conditions are applied. Results demonstrate a parallel device is capable of increasing the inlet flow for rapid operations. Frequency increment raises the acoustic streaming velocity magnitude. Displacement amplitude amplification increases the acoustic streaming velocity and helps the streaming flow dominate over the incoming flow. The qualitative analysis of the hybrid effect shows using hard walls can significantly increase the streaming power without depleting excessive energy. A combination of several effective parameters provides an energy-efficient and fully controllable device for biomedical applications such as fluid mixing and cell lysis.

中文翻译：

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平行声流体装置的定量评估

超声波场在无害和无标签应用中的优势吸引了研究人员开发这项技术。声流体技术在医疗应用中的能力尚未得到彻底分析和可视化。为了实现高效设计，在这项研究中，充分研究了由声波激发的微通道中的流动流体。为了研究声流的行为，研究了由驻波表面声波驱动的矩形充水微通道中的主要干扰参数，如入口速度、工作频率、位移幅度、流体缓冲材料和混合效应。利用微扰理论推导出声场和层流的控制方程。对于每组方程，应用适当的边界条件。结果表明并联装置能够增加入口流量以实现快速操作。频率增量提高声流速度幅度。位移幅度放大增加了声流速度，并有助于流动流在传入流中占主导地位。混合效应的定性分析表明，使用硬壁可以在不消耗过多能量的情况下显着增加流动功率。几个有效参数的组合为流体混合和细胞裂解等生物医学应用提供了一种节能且完全可控的设备。位移幅度放大增加了声流速度，并有助于流动流在传入流中占主导地位。混合效应的定性分析表明，使用硬壁可以在不消耗过多能量的情况下显着增加流动功率。几个有效参数的组合为流体混合和细胞裂解等生物医学应用提供了一种节能且完全可控的设备。位移幅度放大增加了声流速度，并有助于流动流在传入流中占主导地位。混合效应的定性分析表明，使用硬壁可以在不消耗过多能量的情况下显着增加流动功率。几个有效参数的组合为流体混合和细胞裂解等生物医学应用提供了一种节能且完全可控的设备。