本篇研究利用數值模擬分析來探討類似人體心臟瓣膜導流結構對單/雙腔微泵於不同操作及幾何條件下的效能變化。其操作條件包含不同驅動頻率設定及驅動相位角的變化；而幾何上則進行了導流結構的配置，包括該結構於腔室內的位置、厚度及角度對各腔體的影響。
為了提升對後續研究之可靠性，本研究首先選用了Wang [24]及Olsson [12]團隊之單/雙腔壓電式無閥微泵模型來進行驗證，結果顯示兩者模擬對於文獻之流量及背壓結果相近。證明本文所提理論與數值模擬方法之正確可行後，並依此分別探討單/雙腔無/有導流及魟形外型等因素對流場之流量、背壓、共振頻與整體效率提升等四大功能的影響。
本文除了對雙腔模型進行不同驅動相位角於各頻率下對流量與背壓之影響，其結果顯示相位角為180∘時具有最佳流量及背壓表現，並且與相位角0∘相比，提升流量約2倍與背壓2.23倍。接著根據流場動態變化，以增加整體性能為目標，引入類似心臟瓣膜結構，結果顯示該結構使單腔模型整體效率提升至約為60.4%；而雙腔模型整體效率效率則提升約29.7%。在導流結構的配置方面，探討該結構於腔室內的位置、厚度及角度，結果顯示兩系統恰好於該結構距離腔室入口處6.5mm、厚度0.1mm以及角度為20∘時有最佳表現，並且單腔導流模型優化後相對於優化前使效率又提升約13.2%；而雙腔導流模型優化後相對於優化前則使效率又提升約16.5%。最終在將優化後之單/雙腔導流模型之腔體結合魟形外型以進行更進一步的延伸優化，研究結果顯示，優化後之單腔導流模型在結合魟型腔體後可使傳統圓柱型腔體之效率再提升約11.4%；而優化後之雙腔導流模型在結合魟型腔體後則較傳統圓柱型腔體之效率再提升約8.7%。

This study uses the derivative numerical simulation analysis to explore the characteristics of the detailed valve structure of the human body for use in single/double chamber micropumps under different operations and geometric conditions. ; And geometrically, the configuration of the diversion structure is carried out, including the influence of the position, thickness and angle of the structure in the chamber on each cavity.
In order to improve the reliability of the follow-up research, this research first selected the single/double-chamber piezoelectric valveless micropump model of Wang [24] and Olsson [12] team for verification. The results showed that the two simulated the flow rate of literature. The results are satisfactorily agreed with each other. These verifications indicated that the analytical and numerical models presented in this thesis are rigorously valid, and can be used to design and analyze some new models including double chamber systems with flow backward inhibition inlet structures and geometric chamber shape of stingrays in terms of four flow characters including flow rate, back pressure, resonant frequency and overace system efficiency.
The double-cavity model is driven with different phase angles to affect the flow and back pressure at each frequency. The results show that the phase angle is 180° with the best flow and back pressure. Compared with the phase angle of 0°, the flow rate is about 2 times and the back pressure is 2.23 times. Then, according to the dynamic changes of the flow field, with the goal of increasing the overall performance, a similar heart valve structure was introduced. The results showed that the structure increased the overall efficiency of the single-chamber model by about 60.4%; while the overall efficiency of the double-chamber model was increased by about 29.7%. In terms of the configuration of the diversion structure, the position, thickness and angle of the structure in the chamber are discussed. The results show that the two systems have the best performance when the structure is 6.5mm from the entrance of the chamber, the thickness is 0.1mm, and the angle is 20° And the optimization of the single-cavity diversion model increases the efficiency by about 13.2% compared with that before the optimization; and the optimization of the double-cavity diversion model increases the efficiency by about 16.5% compared with that before the optimization. Finally, the optimized single/dual-cavity diversion model cavity was combined with the stingray shape for further extension optimization. The research results show that the optimized single-cavity diversion model can be combined with the stingray cavity. The efficiency of the non-stingray cavity is increased by about 11.4%; and the optimized dual-cavity diversion model combined with the stingray cavity can increase the efficiency of the non-stingray cavity by about 8.7%.

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