Download or view vaporize2.frink in plain text format
/** Program to calculate vaporization of a block of ice from the thermal
radiation of a nuclear blast.
See:
https://upload.wikimedia.org/wikipedia/commons/4/43/Nuclear_Fireball_Radius_and_Temperature.svg
https://de.wikipedia.org/wiki/Kernwaffenexplosion#Feuerball_und_Druckwelle
http://www.fourmilab.ch/etexts/www/effects/
*/
emissivity = .98 // Good IR emissivity for common materials
fireballDiameter = 480 m
fireballRadius = fireballDiameter/2
fireballArea = 4 pi fireballRadius^2
detonationHeight = 500 m
T = 8000 K
targetArea = 1 m^2
targetDist = detonationHeight - fireballRadius
targetDensity = water
vaporizationEnergy = (80 + 540) calorie/g + (104 degC 1 calorie/g/degC)
albedo = .3
t = .2 s
totalPower = sigma emissivity T^4 fireballArea
powerFraction = targetArea / (4 pi targetDist^2)
appliedPower = totalPower powerFraction (1 - albedo)
vaporizedMass = appliedPower t / vaporizationEnergy
vaporizationDepth = vaporizedMass / targetArea / targetDensity
println[vaporizationDepth -> "cm"]
Download or view vaporize2.frink in plain text format
This is a program written in the programming language Frink.
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Alan Eliasen was born 19966 days, 4 hours, 35 minutes ago.