How calculate the fireball size?

Guest

Hello

Someone know how is can to calculate the size of the fireball, knowing yield and time?

Thanks on advance

Posted: Fri Feb 18, 2011 6:57 pm

well the maximum diameter of the fireball is according to the german Wikipedia calculated by: 150*(yield in kt)^0.39 This should give you the maximum fireball diameter in meters. However it seems to overestimate the diameter for high yields. It gave a result of 10 km for the Tsar Bomba while it had only about 6km diameter.

http://en.wikipedia.org/wiki/Nuclear_weapon_yield gives an equation including energy, time and radius of the blast. But since this was only done to estimate the trinity test i'd doubt if it was accurate for high yields.

Guest

Thank you very much