潛體流體動力係數拘束模型試驗與計算流力模擬之比較探討

國立台灣大學工程科學及海洋工程學系「運動與控制實驗室」(以下稱本實驗室)是國內最早建立潛體流體動力係數拘束模型試驗量測分析能量的實驗室，迄今已陸續完成包含T1軸對稱潛體、AUV-HM1自主式水下載具、仿209型潛艦等潛體的斜航(Oblique Towing Test)及平面運動機構試驗(PMM Test)，量測分析其流體動力係數並據以分析其操縱性能。另一方面，隨著計算流體力學方法及CFD軟體的日益精進成熟，藉由數值模擬試驗進行潛體流體動力係數計算與操縱性能分析的方法亦日趨可行。本研究即在前述基礎上，以本實驗室過往完成的T1軸對稱潛體流體動力係數拘束模型試驗量測分析結果為對象，應用CFD軟體ANSYS-FLUENT進行斜航試驗、迴旋臂試驗、等加速運動試驗及平面運動機構試驗等一系列數值模擬，計算T1潛體的流體動力並據以分析流體動力係數及其操縱性能。研究結果將針對潛體流體動力係數的拘束模型試驗與計算流力數值模擬試驗二者，進行比較探討。

關鍵字

拘束模型試驗；流體動力係數；計算流體力學；軸對稱潛體；平面運動機構試驗

並列摘要

Maneuvering and control laboratory in National Taiwan University, the first laboratory developing calculation of hydrodynamic coefficients of submerged body by captive model test analyzing energy output, till now has subsequently carried out oblique towing test and PMM test of several submerged vehicle type including T1 axisymmetric submerged body, AUV-HM1 autonomous underwater vehicle and type 209 submarine model. Furthermore, we also have calculated and analyzed their hydrodynamic coefficients and maneuvering performance. Using computational fluid dynamics method to obtain the hydrodynamic coefficients of submerged body has gradually been a viable and effective way for maneuvering analysis due to significant progression of CFD software. Therefore, on the basis of the previous results of hydrodynamic coefficients of T1 axisymmetric submerged body, this research aims to collect hydrodynamic coefficients of same model by carrying out series of CFD simulation which include oblique towing test, constant accelerating test and PMM test. And analyze its maneuvering performance. In the end, the result of this research and the previous one would be compared and discussed.