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震撼!实拍战斗机穿越音障 - 站长搜索
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震撼!实拍战斗机穿越音障

业界动态 2015-01-08 17:21:09 转载来源: 网络整理/侵权必删

站长搜索(www.adminso.com):震撼!实拍战斗机穿越音障 据国外媒体报道,在这组图片中,航空摄影师德雷克・休斯塔(Darek Siusta)拍下了F/A-18F超级大黄蜂战斗机接近音障时的画面。这些图片都是在飞机经过的不到1秒时间内拍摄的,采用了极快的1/4000快门速度

站长搜索(www.adminso.com):震撼实拍战斗机穿越音障

据国外媒体报道,在这组图片中,航空摄影师德雷克・休斯塔(Darek Siusta)拍下了F/A-18F超级大黄蜂战斗机接近音障时的画面。这些图片都是在飞机经过的不到1秒时间内拍摄的,采用了极快的1/4000快门速度。

▲飞机经过时会导致气压升高,使水蒸气瞬间凝结,形成了奇特的视觉效果。但实际上与音障并没有关系,而只与飞机的高速飞行有关,在低于音速或高于音速时都可能会出现。

不过,图中的蒸汽锥(vapor cone)并不是由音爆产生。当飞机以极快的速度穿过一团潮湿空气时,就会产生蒸汽锥。飞机经过时会导致气压升高,使水蒸气瞬间凝结,形成了奇特的视觉效果。这种蒸汽锥常常被描述为飞机突破音障时的现象,但实际上与音障并没有关系,而只与飞机的高速飞行有关,在低于音速或高于音速时都可能会出现。

▲这架F/A-18F超级大黄蜂以约1225公里的时速飞行,身后产生了一大片蒸汽锥。此时飞机已经十分接近音障(sound barrier)。音爆(sonic boom)是飞机突破音障时产生的噪音冲击波,不能与音障混淆。

▲音爆时物体以超音速穿过空气时产生的噪音。飞机在飞行的时候,在前后都会产生一系列的压力波,类似轮船在船头和船尾处产生的波浪。

▲美国海军的F/A-18F超级大黄蜂最高时速可以达到1915公里。图中它由第106攻击战斗机中队(被称为“角斗士”)驾驶,正在弗吉尼亚州的美国海军航空站进行飞行表演。

标签: 震撼 实拍 战斗机 穿越 音障


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