摘要
基于SUBOFF水下航行体模型,对不同航速下光滑表面及粗糙表面水下航行体开展数值分析。首先基于试验标模进行直航阻力数值模拟及网格收敛验证,并与试验值比较验证数值计算结果的准确性及有效性。随后,通过验证后有效的计算模型对光滑表面及粗糙表面航行体水动力特性进行数值分析,结果表明水下航行体直航时,相较于光滑表面航行体,粗糙表面航行体阻力有所增加。光滑表面航行体的总阻力比高度2 mm的粗糙表面航行体的总阻力小8%~10%,比高度1 mm的粗糙表面航行体的总阻力小7%~10%。在同样阻力情况下,高度2 mm粗糙表面航行体航速为20 kn时,光滑航行体航速可达到21.6 kn。
Based on the SUBOFF underwater vehicle model, numerical analysis is carried out on smooth surface and rough surface at different speeds. First, numerical simulation of the test of the SUBOFF model at different speeds is carried out by given different incoming flow speeds, and the grid independence verification is validated. The numerical results are compared with the experimental data of the Taylor tank to verify the accuracy of the numerical experiments. Subsequently,numerical experiments were carried out on the hydrodynamic characteristics of smooth and rough surface vehicles through valid numerical method. The results show that compared with the smooth surface vehicle, the resistance of the rough surface vehicle is increased. The total resistance of a smooth surface vehicle is 8%~10% lower than that of a rough surface vehicle with a height of 2 mm, and 7%~10% less than that of a rough surface vehicle with a height of 1 mm. Under the same resistance, when the speed of a rough surface with a height of 2 mm is 20 kn, the speed of a smooth body can reach 21.6 kn.
作者
董鹏
崔自宪
丁晓冬
DONG Peng;CUI Zi-xian;DING Xiao-dong(Marine Equipment Project Management Center,Beijing 100071,China;Systems Engineering Research Institute,CSSC,Beijing 100094,China)
出处
《舰船科学技术》
北大核心
2022年第23期1-5,共5页
Ship Science and Technology
