本研究的目的為探討本實驗室自行開發的自主式無人水下載具(Autonomous Underwater Vehicles, AUV)，經由計算流體力學(Computer Fluid Dynamics, CFD)的方法來探討AUV在全附屬物(Bare Hull with Full Appendages)下流場中的情況。數值模擬的紊流模型採用SST k-ω 模型(Shear Stress Transport K-ω model)作為本次的紊流模型，並採用SIMPLEC (Semi-Implicit Method for Pressure-Linked Equations Consistent) 為求解器之設置條件，並參考DAPA SUBOFF的實驗規劃進行斜航試驗(Oblique Towing Test)。分別進行多種入流角(β)、俯仰角(α)的模擬，分析AUV所承受的受力、力矩變化，同時觀察AUV在不同入流角、俯仰角下的流場差異性、壓力分佈、流場變化、壓力係數和摩擦係數分佈。

The purpose of the study was to analyze Autonomous Underwater Vehicle (AUV) by using Computational Fluid Dynamics (CFD) to export the AUV in the full appendage in the flow field. The numerical simulation of the turbulence model uses the SST k-ω model (Shear Stress Transport K-ω model) as the current turbulence model and SIMPLEC (Semi-Implicit Method for Pressure-Linked Equations Consistent) as the setting condition for the solver, and refers to DAPA SUBOFF's experimental plan for the Oblique Towing Test. Simulations of various inflow angles (β) and pitch angles (α) were conducted to analyze the changes in the forces and moments that the AUV is subjected to. Simultaneously, the flow field difference, pressure distribution, flow field variation, pressure coefficient, and friction coefficient distribution of the AUV under different inflow angles and pitch angles were observed.

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