Fluids

Fluids

Absorbed Visible Solar Flux — Unexpected Results?

    • patrickm7995
      Subscriber

      I have a thin plate with the bottom surface receiving solar flux, and the other surfaces being fully transparent and the inside of the geometry being air with very low (1e-5) density.

      This bottom wall was set to 0 transmissivity and 0 absorptivity for this case, so it was expected that the solar radiation coming in (1377 W/m2) would be split between reflectivity in the IR and visible, 688.5 W/m2, which occured.

      However, the absorbed visible solar flux map was also showing a value, which was unexpected. The absorbed IR was as expected, 0 W/m2. 

      Does anyone have any reasons this may be occuring? Thank you.

    • Swathi V. V.
      Ansys Employee

      Hi,

      Can you please check your settings again?

      Please note absorbed visible solar flux is not evalueted for opaque surface.

       

      • patrickm7995
        Subscriber

        Thank you for your reply. Sorry, I am confused: opaque surfaces do not have absorbed solar flux?

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