I wanted to simulate a moving heat source for thermal analysis on a poly carbonate sheet. But due to very low thermal conductivity of poly carbonate, temperature profile results in a very high maximum temperature. Is it valid?
It completely makes sense. The materials with low thermal conductivity experience large temperature gradient as they diffuse heat very slowly from the zone where heat source presents. This causes very high temperature at that zone. To crosscheck your result you may consider heat balance approach. For that you need to take some closed boundary and calculate the total heat flux across that boundary. If that equates with the amount of heat generation inside that boundary, that will be one more validation of your results.
Arijit Mahapatra Thank you so much sir. I will definitely try to validate it by the mentioned approach.
If your model is correct then there is no reason that low thermal conductivity materials are not suitable for thermal analysis. Two of my articles where thermal analysis of PC sheet is carried out are given below:
Article A procedure for calibration and validation of FE modelling o...
http://dspace.iitrpr.ac.in:8080/handle/123456789/953
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