Long 20 cm by 20 cm square steel stock having a thermal conductivity of 50 W/mK and thermal diffusivity of 1 x 10^-5m^2/s is put in oil at 100ºC when the steel stock is at 300ºC. With a convective heat transfer coefficient of 150 W/m^2K, determine the temperature of the center and the edge of the stock after being heated for 2 minutes in the oil.

What will be an ideal response?


Since the stock is very long, we assume an infinite square stock. The Biot number is







Physics & Space Science

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