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Absorbed Visible Solar Flux — Unexpected Results?

- July 26, 2022 at 6:38 pm
  
  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.
- July 28, 2022 at 6:13 pm
  
  SVV
  Ansys Employee
  
  Hi,
  Can you please check your settings again?
  Please note absorbed visible solar flux is not evalueted for opaque surface.
  - July 28, 2022 at 7:11 pm
    
    patrickm7995
    Subscriber
    
    Thank you for your reply. Sorry, I am confused: opaque surfaces do not have absorbed solar flux?
- October 13, 2022 at 3:50 am
  
  li can
  Subscriber
  
  i have the same confusing , how to set opaque surface condition to absorb solar flux ?

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