Hi there,

I'm trying to run two simple heat conduction problems, but the results are not consistent with the theoretical ones.

Case 01:

Geometry: 1 mm * 1 mm * 5 mm bar, built with AutoCAD.

format: iges

material: aluminum (generic), heat capacity = 237 (x) this is a typo

thermal conductivity = 237 (o)

type: steady state

heat load: 1 W (I suppose the unit is Watts) on a 1 mm*1 mm side area

boundary condition: temperature = 273 on the other 1 mm *1 mm side are.

Coordinate Scaling = 0.38

The result: After tuning the "Coordinate Scaling" to be 0.38, the temperature on the side where heat source is applied is 294, which is close to the hand-writing calculation.

However, when I tried to run the case with only the geometry changing to 1 mm * 1 mm * 2.5 mm, Elmer gave me the result of 278, which is supposed to be 283.

Could anyone help me with this?