引爆核装置是否真的会在太空的真空中向航天器提供推力?Would detonating a nuclear device actually provide thrust to a spacecraft in the vacuum of space?

https://www.quora.com/Would-detonating-a-nuclear-device-actually-provide-thrust-to-a-spacecraft-in-the-vacuum-of-space

I assume you are referring to the idea of nuclear pulse propulsion, as incorporated into the designs of Project Orion.

我假设您是指“核脉冲推进”的概念,该概念已纳入“猎户座计划”的设计中。

The answer is no, but yes.

答案是否定的,但也是对的。

An unmodified nuclear device would produce essentially no blast in space. That’s because nuclear detonations release almost all their energy as light, mostly in the form of x-rays or gamma-rays. When detonated on Earth, this energy is absorbed by the surrounding air, which heats up to incandescence and expands, producing the blast wave that does most of the damage.

未经特别修改的核装置在太空中基本上不会爆炸。那是因为核爆炸几乎将所有能量释放为光,主要是X射线或伽马射线的形式。当在地球上被引爆时,该能量被周围的空气吸收,把空气加热到白热状态并让它膨胀,产生爆炸波,这是核爆主要的破坏。

In space there is no air, so the detonation would produce mostly a flash of light and burst of particle radiation, and the energy would be wasted.

在太空中没有空气,因此爆炸将主要产生闪光和粒子辐射爆发,能量将会被浪费。

That’s why scientists at General Atomics working on Project Orion planned to pack tiny atomic bombs in a casing with a tungsten plug. A shaped radiation reflector would channel most of the radiation into the plug, which would do in space exactly what the air does on Earth, and produce a propulsive blast. Since tungsten is thousands of times denser than air, a relatively compact plug would be sufficient to “kick” against the pusher plate, and these pushes would be evened out by shock absorbers into constant thrust.

因此,研究Orion计划的General Atomics科学家计划将微小的原子弹装在带有钨塞的外壳中。有特殊外形的辐射反射器会将大部分辐射引导到塞子中,塞子将在空间中精确地发挥空气在地球上的作用,并产生推进性爆炸。由于钨的密度是空气的数千倍,因此相对紧凑的塞子可以非常高效地“踢”推板,并且这些推力会被减震器平整成恒定的推力。

Leave a Reply