為因應未來臺灣海軍面臨詭譎多變的軍事威脅，「不對稱作戰」將持續是我國國防尋求的解決方法，噴水推進器運用於軍艦將越趨頻繁，然而噴水推進器數值模擬分析與傳統螺槳推進發展仍有些落差，本研究參考ITTC噴水推進器實驗指南，在噴水推進器自推實驗受限於環境或測量儀器限制下，部分數值可透過CFD模擬軟體進行模擬獲得，除可以提升實驗效率外，亦可降低實驗成本。本次結合林瑋晉「噴水推進艦艇自推實驗技術建立與探討」研究成果，針對流量量測使用ANSYS軟體配合噴水推進器產生推力回推流量，發現實驗與模擬誤差約-10.3%~1.24%，並使用模擬軟體運用動網格及重疊網格，針對側視流向流速、流線軌跡、壓力及噴水推進器縱向剖面流速等進行圖示，有助於噴水推進器自推實驗量測儀器精度選用及輔助實驗進行。最後針對噴水推進器自推實驗結合模擬軟體執行噴水推進器自推實驗擬定初步流程。

In response to Taiwan Navy's need for adaptive defense strategies against diverse military threats, the use of water jet propulsion in naval vessels is becoming more prevalent. However, there's still a gap between numerical simulations of water jet propulsion and traditional screw propulsion development. This study combines experimental techniques with computational fluid dynamics (CFD) software to overcome limitations in water jet propulsion experiments. By referencing established guidelines, the study achieved a discrepancy of approximately -10.3% to 1.24% between experimental and simulated results. Utilizing ANSYS software, flow rates and thrust-back flow rates were measured, aiding in instrument selection and experimental design. Through dynamic mesh and overlapping mesh techniques, key flow characteristics were visualized. This integrated approach provides a preliminary framework for conducting water jet propulsion experiments, enhancing efficiency and reducing costs.

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