Question: Mathematical model of time-variant temperature distribution in a bar with Maple

My task is to develop a mathematical model of time-variant temperature
distribution in a bar with Maple. 
The bar is made of aluminum. The length is 202 mm and the diameter
is 8mm.
Heat is supplied from the kitchen lighter where the flame burns on butane.
The height of the flame is about 4 mm.
Your model should be able to answer how long the time it takes to reach
a certain value of temperature at the distance of 10 cm from the heat source.

 

anyone can help to answer this? im totally new to maple.. hopefully some1 can help me to answer this..

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