Radiosity (heat transfer)
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This article is about the thermodynamic quantity. For the rendering algorithm, see Radiosity (3D computer graphics).
In the fields of optics and heat transfer, radiosity is the total emitted and reflected radiation leaving a surface.
The diffuse radiosity (J) is the integral of the hemispherical spectral radiosity (Jλ) over the spectrum:
where Jλ is equal to integral over the hemispherical solid angle of the sum of emitted and reflected radiant intensities.[1]
The radiosity method is used to solve for the radiative heat transfer between a number of surfaces. This method requires the solution of a system of simultaneous equations using matrix methods because the radiation hitting each surface is determined by the temperatures of all the other surfaces.
[edit] See also
- Irradiance
- Radiant flux
- Radiosity (computer graphics)
[edit] References
- ^ Incropera and deWitt, Fundamentals of Heat and Mass Transfer, 3E, ISBN 0471386502
