Angular Dependency for Reflection at Opaque Walls

- July 7, 2022 at 8:38 am
  
  aleo
  Subscriber
  
  Hi everyone,
  
  I am simulating a 3D-DOM Radiation problem, in which I have an Opaque BC, which is partially absorbing (emissivity=0.3) and reflecting the rest (0.7) specularly.
  
  My question is, if I can define an angular dependency for these values, by using a built-in expression/function. For example a ray coming with an angle of 30° has other values than a ray hitting my surface at 80°.
  
  Thanks in advance, and kind regards, Leo
- July 7, 2022 at 7:26 pm
  
  Karthik R
  Administrator
  
  Hello,
  If I understand your question, do you wish to modify the percentage of emissivity and reflectivity based on the incoming angle of the ray? I do not think this can be done, not at least using an expression.
  Thank you.
  Karthik

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