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实尺度水下航行器桅杆导流罩水动力性能预报分析
Prediction and analysis of hydrodynamic performance of underwater vehicle mast fairing at real scale
【摘要】 水下航行器的桅杆导流罩是造成航行器附体阻力的重要部分,采用CFD软件STAR-CCM+和AnsysAQWA对桅杆导流罩的阻力进行数值计算并进行缩比模型试验,模拟不同航速、攻角及海况等参数下A、B剖面的桅杆导流罩受力情况。先对模型尺度的桅杆导流罩进行数值计算以及试验;再对实尺度下的桅杆导流罩进行数值计算以及模型试验预报,确认预报结果的精确性;最后对2种典型工况H1、H2进行阻力和力矩的预报分析。研究结果表明,在实尺度下A剖面受到的总阻力及阻力矩在2种工况下均大于B剖面;在2种工况下,桅杆导流罩受到的阻力大小较为接近,三级海况下H2工况阻力矩更大,五级海况下则H1工况阻力力矩更大。
【Abstract】 The mast fairing of underwater vehicles is an important part that causes the attachment resistance of the vehicle. CFD software STAR-CCM+ and Ansys-AQWA were used for numerical calculations, and scaled model tests were also conducted to simulate the stress situation of the mast fairing on profiles A and B under different sailing speeds, attack angles, and sea conditions. Firstly, numerical calculations and experiments were conducted on the model scale mast fairing.Then, numerical calculations and model experiments were conducted on the actual scale mast fairing to confirm the accuracy of the prediction results. Finally, resistance and moment were predicted and analyzed for two typical working conditions H1 and H2. The research results indicate that at the real scale, the total resistance and moment acting on profile A are higher than those acting on profile B under both operating conditions; In the two working conditions, the resistance of the mast fairing is relatively similar. The resistance moment of H2 working condition is higher under the third level sea condition, and the resistance moment of H1 working condition is higher under the fifth level sea condition.
【Key words】 mast fairing; numerical simulation; flow around circular cylinder;
- 【文献出处】 舰船科学技术 ,Ship Science and Technology , 编辑部邮箱 ,2025年14期
- 【分类号】U674.941
- 【下载频次】21