超空泡鱼雷威力有多大?

2025-02-13 07:20:18
推荐回答(1个)
回答1:

超空泡是一种物理现象,当物体在水中的运动速度超过100节的时候,物体的后部就会形成奇异的水蒸汽泡泡,从而产生“超空泡”流体——这是一种机械效应,液体围绕物体快速运动的时候,压力会下降,随着速度的增加,当液体压力等于水蒸汽的压力时,液体便由水相变为气相,形成水蒸气。空泡会使水流发生畸变,从而损失水泵、涡轮水翼和推进器的使用效率,还可能导致强烈的冲击波的出现,并引起金属表面出现腐蚀现象。现在船舶的设计师们经常要与知道麻烦的空泡们打交道,做斗争,试图避免出现空泡现象,这就是船体为什么设计成流线型的原因之一。

物体在水中运动时,还需要克服与水的摩擦力所造成了黏性阻力,这种阻力大约是空气阻力的1000倍。科学研究人员为减少这种阻力想了不少办法,还是解决的不够彻底。恩~~~谁知道最后却惊奇的发现,一个有效的办法竟然是可以利用这种讨厌的气泡,形成一种可更新的气泡包络,使得流体对物体表面的浸湿面积最小化,从而大大的降低黏性阻力,这种低密度的气泡,就是超空泡。超空泡是气泡或者是空泡的一种极端表现形式,当物体在水中的运动速度超过50米/秒时,钝头航行物体或者是安装在头部的气体注入系统就可能产生低密度的气泡穴,气泡的长度与物体的运动速度有关,物体能够在自己所产生的长气泡中,以最小的阻力飞速前进——

俄罗斯的风暴火箭动力鱼雷是目前所知的唯一的超空泡武器,是由位于乌克兰的流体力学研究所研制的,1997年装备部队。风暴鱼雷长8.23米,重约2700公斤,壳体由尾部至头部慢慢的变细,头部装有战斗部,尾部中心为大孔径的固体火箭发动机喷灌,周围有8个小型的圆柱型启动火箭,他们将风暴加速到超空泡速度,然后主发动机开始干活,鱼雷的头部是最重要的超空泡发生器,呈圆形或者椭圆型平盘状,向前倾斜形成一个“攻角”,以产生支持鱼雷前部的升力,紧靠空泡发生器的后面是几个环状的通气管,这些管将火箭排气注入空泡穴使其张大,航行的时候,首先由平盘式空泡发生器形成局部的空穴,然后由通气管向空穴注入气体,使他形成超空泡。小型启动火箭使鱼雷航行直至形成空穴,然后中央火箭才工作。

由俄罗斯莫斯科国家科研生产联合企业列吉昂研制的代号BA-Ⅲ的“暴风”超高速鱼雷,可由潜艇携带发射后航行在超空泡场中,速度可达200节,航程约10000~15000米,主要用于反潜及反舰。该雷速度之快,堪称世界之最,使鱼雷成为打击水面、水下目标,摧毁水下设施的难以防御的水下导弹。该雷的出现引起世界各主要海军国家的震惊与关注。

“暴风”超高速雷的主要战术指标:

直径:534毫米

长度:约8米

重量:约2600千克

航速:200节(100米/秒)

航程:约10000~15000米

航深:4~400米

战斗部装药:约250千克

鱼雷可打击高速航行的目标,无自导系统,动力采用的是两台火箭发动机,攻击弹道为直航,具有很高的航向精度。

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