本篇研究為利用數值模擬分析軟體ANSYS探討壓電制動無閥式微泵浦在不同邊界條件及操作條件下的效能變化；其幾何及操作變量包含泵浦的並聯配置、彈性薄膜的厚度、壓電制動器的配置、腔體之幾何外型以及驅動相位角的變化。分析模型包含了流體域及固體域，因此採用雙向流固耦合作為分析方法，藉由流體固體交界面(FSI)做為資訊交換媒介，將固體之變形量傳遞至流體，並將流體域的壓力變化傳遞至固體域，作為彼此之邊界條件後進行迭代運算。
本研究首先探討了無閥式微泵浦的傳統模型與並聯模型之間的效能差異，包括泵浦流量以及可承受之最大背壓；在操作電壓為100V之交流電時，並聯模型的最大流量為3.18(ml/min)，其為傳統模型最大流量的1.64倍，並將泵浦之水動力提升32%；而背壓方面，由於漸擴管/漸縮管的截面積變為兩倍，導致其流量受壓力影響增加，比起傳統模型下降了25%。在薄膜厚度的研究方面，探討了厚度在0.25mm-0.6mm區間內對流量的影響，結果顯示0.35mm時會有最大的流量表現；而雙壓電制動器的配置也成功的提升了流量22%與背壓112.5%的表現，之後將上述之優化條件整合為一並聯模型後，研究不同的驅動相位角對流量、背壓之影響，其結果顯示相位角為 時具有最佳流量及背壓表現，與相位角為 時相比，提升了流量63.56%與背壓22.5%。再比較了腔體內部流線分布後，以增加腔內渦流區範圍及密度為目標，引入仿生魟型腔體結構，提高合成射流現象，增加流量效率30%。

This study is to use the numerical simulation analysis software ANSYS to investigate the performance changes of the piezoelectric brake valveless micropump under different boundary conditions and operating conditions; its geometric and operating variables include the parallel configuration of the pump, the thickness of the elastic film, and the piezoelectric The configuration of the brake, the geometric shape of the cavity and the change of the driving phase angle. The analysis model includes the fluid domain and the solid domain. Therefore, the two-way fluid-solid coupling is used as the analysis method. The fluid-solid interface (FSI) is used as the information exchange medium to transfer the deformation of the solid to the fluid and the pressure in the fluid domain The changes are transferred to the solid domain and used as boundary conditions for each other to perform iterative operations.

This research first explores the performance difference between the traditional valveless micropump model and the parallel model, including the pump flow rate and the maximum tolerable back pressure; when the operating voltage is 100V AC, the maximum flow rate of the parallel model is 3.18 (ml/min), which is 1.64 times the maximum flow rate of the traditional model, and increases the hydraulic power of the pump by 32%. In terms of back pressure, the cross-sectional area of the diffuser/nozel doubles, resulting in The flow rate is increased by pressure, which is 25% lower than the traditional model. In the study of film thickness, the effect of thickness on the flow rate in the range of 0.25mm-0.6mm was discussed. The results showed that the maximum flow performance was at 0.35mm; and the configuration of the dual piezoelectric brake also successfully increased the flow by 22% The performance of 112.5% and the back pressure. After integrating the above optimization conditions into a parallel model, the effect of different driving phase angles on flow and back pressure was studied. The results showed that the best flow and back pressure performance was obtained when the phase angle was long. Compared with the phase angle, the flow rate is 63.56% and the back pressure is 22.5%. After comparing the streamline distribution inside the cavity, aiming to increase the range and density of the vortex zone in the cavity, the bionic stingray cavity structure is introduced to improve the synthetic jet phenomenon and increase the flow efficiency by 30%.

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