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Radiation in an Emitting and Absorbing Medium: A Gridless Approach

Numerical Heat Transfer, Part B

Gritzo, Louis A.; Strickland, James H.; DesJardin, Paul E.

A gridless technique for the solution of the integral form of the radiative heat flux equation for emitting and absorbing media is presented. Treatment of non-uniform absorptivity and gray boundaries is included. As part of this work, the authors have developed fast multipole techniques for extracting radiative heat flux quantities from the temperature fields of one-dimensional and three-dimensional geometries. Example calculations include those for one-dimensional radiative heat transfer through multiple flame sheets, a three-dimensional enclosure with black walls, and an axisymmetric enclosure with black walls.

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2 Results