Investigation of Normal Force and Moment Coefficients for an AUV at Nonlinear Angle of Attack and Sideslip Range
Investigation of Normal Force and Moment Coefficients for an AUV at Nonlinear Angle of Attack and Sideslip Range
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DOI：
10.1109/joe.2008.2004761
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发表时间：
2008-10-01
影响因子：
4.1
通讯作者：
de Sa, Elgar
中科院分区：
文献类型：
--
作者：
de Barros, Ettore A.;Dantas, Joao L. D.;de Sa, Elgar
本文提出了一种比较研究的计算流体动力学（CFD）和分析和半经验（ASE）的方法应用于预测的法向力和力矩系数的自主水下航行器（AUV）。这两种方法都应用于。车辆的裸船体和车体-水上飞机组合。通过拖曳水池试验验证了该方法的有效性。结果表明，计算流体动力学的方法允许一个很好的预测的系数在考虑的攻角范围内。与传统的ASE公式用于海军和飞机领域相比，一种改进的方法，利用CFD流动可视化获得的定性信息。
This paper presents a comparative study of computational fluid dynamics (CFD) and analytical and semiempirical (ASE) methods applied to the prediction of the normal force and moment coefficients of an autonomous underwater vehicle (AUV). Both methods are applied to the. bare hull of the vehicle and to the body-hydroplane combination. The results are validated through experiments in a towing tank. It is shown that the CFD approach allows for a good prediction of the coefficients over the range of angles of attack considered. In contrast with the traditional ASE formulations used in naval and aircraft fields, an improved methodology is introduced that takes advantage of the qualitative information obtained from CFD flow visualizations.