Q:

Do explosions typically exhibit increasing acceleration of the exploding material at some stage of the explosion?

- Ray

Warrenton Virginia

- Ray

Warrenton Virginia

A:

You bet! That's the whole idea. An explosion, be it chemical, nuclear, or whatever, deposits a lot of energy into a small volume. This will raise the local pressure which in turn exerts forces on objects surrounding it. And, as you know, a la Newton: acceleration = force / mass.

LeeH

LeeH

*(published on 07/06/2010)*

Q:

This question is a follow up for "Do explosions accelerate constituents?". My question had to do with inceasing acceleration (jerk), not acceleration itself.

- Ray

Warrenton Virginia

- Ray

Warrenton Virginia

A:

Well, sure. There has to be some positive value of d^{3}x/dt^{3} since the acceleration is zero moments before the explosion and finite moments afterward. There must be some non-zero value of the 'jerk'. Describing explosions in detail is a very difficult problem, I'm not sure how to calculate it myself. You need a very complicated gas-dynamics computer program to do it correctly.

LeeH

LeeH

*(published on 07/12/2010)*