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潜艇围壳舵和首舵水动力性能比较
Comparison between hydrodynamic performance of sail rudder and bow rudder on submarine
丁自友, 龚仕奇, 王支林, 王先洲, 冯大奎
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作者单位:华中科技大学 船舶与海洋工程学院, 湖北 武汉 430074
中文关键字:围壳舵;首舵;水动力性能;Suboff;数值仿真
英文关键字:sail rudder;bow rudder;hydrodynamic performance;Suboff;numerical study
中文摘要:安装在潜艇上的首部水平舵位置对于潜艇在垂直方向的稳定性以及操纵性具有重大意义。本文首先通过Fluent 14.0计算Suboff模型的阻力以及DTMB舵型的升、阻力,仿真结果与实验结果吻合较好。然后计算带围壳舵Suboff潜艇和带首舵Suboff潜艇的阻力、升力特性,并比较了潜艇带首舵和围壳舵的升阻力特性差异,以及对艇体表面压力分布和尾部流场的影响。计算结果显示,相同舵角下,围壳舵和首舵阻力相差不大,围壳舵升力比首舵升力大。相同舵角下,潜艇总阻力相差不大,带首舵潜艇总升力、总力矩比带围壳舵潜艇总升力、总力矩大。围壳舵舵角的变化对艇体表面的压力变化影响相对首舵来说较小。围壳舵和首舵在较大舵角下,都会对尾水平舵产生显著影响。
英文摘要:Hydrodynamic performance of the fore horizontal rudders installed on the submarine plays an important role on the vertical stability and maneuverability of submarine. At first, the paper uses commercial code fluent 14.0 to calculate the drag of Suboff, the drag, lift of DTMB rudder. Simulation results show good match with experimental results. Then the drag, lift characteristic of Suboff with sail rudder and Suboff with bow rudder are calculated. The difference between them, the influence on the pressure distribution of bare hull and the influence on wake flow field are analyzed. The results show that when rudder angle is the same, the difference between the drag of sail rudder and bow rudder is small. The lift of sail rudder is bigger than that of bow rudder. When rudder angle is the same, the difference of total drag is small, while the total lift and total moment of Suboff+bow rudder is bigger than those of Suboff+sail rudder. The rudder angle change of sail rudder has relatively small influence on the pressure distribution when comparing with that of bow rudder. When rudder angle of bow rudder and sail rudder is big, there will be obvious influence on horizontal tails.
2017,39(10): 22-28 收稿日期:2016-11-27
DOI:10.3404/j.issn.1672-7649.2017.10.004
分类号:U661.1
作者简介:丁自友(1993-),男,硕士研究生,研究方向为船舶水动力学
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