Fluids

Fluids

Modelling atmospheric window with radiation boundary condition on pressure outlets

    • Rozpruwacz10000
      Subscriber

      Hi,

      in pressure inlet/outlet BCs we can set black body temperature to account for the temperature of radiating objects/gases outside our computational domain. Is there a way to specify different temperature for different wavelengths? For example, there exists atmospheric window causing some wavelengths to be radiated directly into space.

      Best regards

    • Karthik R
      Administrator
      Hello Apologies for the late response on this one.
      I'm not sure if you can do this. You can perhaps use expressions to specify the different black body temperatures (Please see section 14.3.8.1.2. Black Body Temperature in the link below).
      https://ansyshelp.ansys.com/account/secured?returnurl=/Views/Secured/corp/v211/en/flu_ug/flu_ug_mods_rad_bc.html?q=radiation%20udf
      However, you might not be able to use it as a function of wavelength.
      Karthik
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