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Colling of metallic cube in metallic box
Posted 12.06.2015, 08:33 GMT-4 Version 4.3, Version 4.4, Version 5.0 0 Replies
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I suppose that a small cube (a = 10 cm) made of copper is located on a square surface made of steel. The cube is enclosed in a cubic box (L = 50 cm) filled with air. The top of the box is made in wood, the walls are made in iron an the bottom of the box (where is placed the small cube) is made in steel. The thickness of the box is 1 cm. The full system (cube + box) is thermally isolated from the outside.
The initial temperature of the small cube is T0 = 100°C and the initial temperature of the air in the box is Text = 50°C.
I would like to obtain the temparture of the small cube as a function of the time by taken into account the thermal transfer by convection between the cube and air, the thermal transfer between the cube and the ground (steel) on which is posed the cube and if this is possible to take into account the side effects due to the top and the sides (left and right) of the box.
How to set comsol to obtain the solution in my previous problem ? I solved the problem only when the cube floats freely in air without walls or floor.
your help will be invaluable to me.
John Baldwin (post-doct)
Hello John Baldwin
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