# Accession Number:

## AD0263613

# Title:

## A METHOD FOR PREDICTING THE TEMPERATURE-TIME HISTORY OF A SOLID CYLINDER IMMERSED IN AN OPEN FIRE

# Descriptive Note:

# Corporate Author:

## NAVAL WEAPONS EVALUATION FACILITY ALBUQUERQUE N MEX

# Personal Author(s):

# Report Date:

## 1961-06-01

# Pagination or Media Count:

## 1.0

# Abstract:

Consi eration is being given toward finding a simple method to predict the vulnerability of nuclear weapons to fire. An analytical method is presented for predicting the temperature-time history of a effectiv ly infi ite solid cylin r immersed in a large, open aircr ft-fuel fire. Essentially, the method consists of the solution of the Fourier heat-conduction equation for two different modes of heat transfer to the surface of the cylinder, each xpressed by a linear boundary conditio at the surface. period of heating from the time of fuel ignition until the time the cylinder reaches its maximum temperature is divided into two time intervals. For the first interval, a model based on a constant eat flu to the cylinder surface is used. F OR T E S COND A MODEL BASED ON A VARIABLE FLUX THAT IS PROPORTIONAL TO THE TEMPERATURE DIFFERENCE BETWEEN THE FIRE AND THE CYLINDER SURFACE IS USED. Agreement b tween the theoretical and experimental temperatur s for the interior of he cylinder is goo for bot models. Author