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inaccurate temperature profiles and meshing related
Posted 3 nov 2011, 12:51 GMT-4 Heat Transfer & Phase Change, Mesh, Modeling Tools & Definitions, Parameters, Variables, & Functions Version 4.1 2 Replies
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1. I am running some simple calibration tests for temperature profiles and
heat conduction.
2. I take two blocks (one with very low conductivity
and other with very high conductivity).
3. I applied temperature to only one side of one of the blocks.
According to the profile shown, it looks to gain temperature( by looking at the data range of the surface
temperature profile from 400k to 400.00000000342084k ),this is with the extremely fine mesh setting.
With coarse mesh setting, the temperature is all uniform.
could somebody help explain this mystery to me!!!
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Nagi Elabbasi
Veryst Engineering
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and do not forget how numbers are represented in a computer, binary distribution has a limited precision and tricky uneven distribution over the real numbers. So I never trust differences much above 1:1E6
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Good luck
Ivar