水下无人移动装置的水动力外形设计与仿真
Design and simulation of hydrodynamic profile for underwater unmanned mobile device
王同刚 1杨嵩 2李佳宸3
作者信息
- 1. 新乡职业技术学院数控技术学院,河南新乡 453000
- 2. 天津职业技术师范大学 机械工程学院,天津 300222;北华航天工业学院工业技术中心,河北廊坊 065000
- 3. 北华航天工业学院工业技术中心,河北廊坊 065000
- 折叠
摘要
为水下无人移动装置设计合理的水动力外形,以减小阻力,提高滑翔效率,利用CFD软件分析水下无人移动装置的4种水动力外形,发现各种外形的阻力中均以摩擦阻力为主,且潜艇外形的总阻力最小.进一步对不同攻角的水下无人移动装置进行CFD计算,发现压差阻力受攻角的影响较大,随着攻角的增大,压差阻力逐渐占据主导地位,在攻角为10°时,压差阻力占总阻力的80％.研究还发现:水下无人移动装置的升阻比随着攻角的增大先增大后减小,在6°左右达到最大值.水下无人移动装置水动力外形的设计方法和相关研究结论,可为同类研究提供借鉴方法和技术指导.
Abstract
In this article,in order to design a suitable hydrodynamic profile for the underwater unmanned mobile device,re-duce the drag and improve the glide efficiency,the CFD software is applied to analyze four hydrodynamic profiles which can be used for the underwater unmanned mobile device.It is found that the friction resistance is the main resistance in various profiles,and the total resistance of the submarine profile is the smallest.Then,further CFD calculations are conducted on the underwater unmanned mobile device with different angles of attack;it is shown that the pressure resistance is greatly affected by the angle of attack.As the angle of attack increases,the pressure resistance gradually became dominant,accounting for 80％of the total re-sistance when the angle of attack is 10°.This study also indicates that the lift-to-drag ratio of the underwater unmanned mobile device increases first and then decreases with the ever-growing angle of attack,reaching the maximum when the angle of attack is around 6°.The design method and the related conclusions of the hydrodynamic profile for the underwater unmanned mobile device provide methodological reference and technical guidance for research on similar underwater unmanned mobile devices.
关键词
水下无人移动装置/水动力/CFD/升阻比Key words
underwater unmanned mobile device/hydrodynamic/CFD/lift-to-drag ratio引用本文复制引用
出版年
2024
NETL
NSTL
万方数据