General Mechanical

General Mechanical

Radiation heat transfer solution in ANSYS mechanical Steady State Thermal

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    • ansysuser
      Subscriber

      I am trying to see if ANSYS can get the correct solution for a radiation heat transfer problem. So far, ANSYS gets close but is not correct on a few points.

      The problem, shown below:

      1. Two spherical shells of radius R=0.1m.
      2. The two shells are separated by a center-to-center distance of 3R.
      3. Sphere 1 (Generator) has a surface emissivity of 0.7 and a constant heat flux of 1666.667 W/m^2.
      4. Sphere 2 (Insulated) has a surface emissivity of 0.5 and is perfectly insulated.
      5. The ambient surroundings are at 0 C.
    • Ashish Khemka
      Ansys Employee
      Hi,nnPlease see if this article helps:nnnRegards,nAshish Khemkan
    • ansysuser
      Subscriber
      Hello akhemka,nI have read through the theory-guide and didn't see anything that stands out to me. Is there something in particular you think I should re-check?.Thanksn
    • ansysuser
      Subscriber
      Anyone have any other input on this? I really would like to get a good solution from ANSYS.n
    • peteroznewman
      Subscriber
      Relevant comment from on using linear elements in the mesh for thermal models here.nhttps://forum.ansys.com/discussion/18457/solid70-elements-are-giving-higher-temperature-than-solid90-in-moving-heat-source-modelling#latestn
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