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Frequency Integrated Radiation Models for Absorbing and Scattering MediaThe objective of this work is to contribute to the simplification of existing radiation models used in complex emitting, absorbing, scattering media. The application in view is the computation of flows occurring in such complex media, such as certain stellar interiors or combusting gases. In these problems, especially when scattering is present, the complexity of the radiative transfer leads to a high numerical cost, which is often avoided by simply neglecting it. The complexity lies partly in the strong dependence of the spectral coefficients on frequency. Models are then needed to capture the effects of the radiation when one cannot afford to directly solve for it. In this work, the frequency dependence will be modeled and integrated out in order retain only the average effects. A frequency-integrated radiative transfer equation (RTE) will be derived.
Document ID
20050061073
Document Type
Other
Authors
Ripoll, J. F. (Stanford Univ. Stanford, CA, United States)
Wray, A. A. (NASA Ames Research Center Moffett Field, CA, United States)
Date Acquired
September 7, 2013
Publication Date
January 1, 2004
Publication Information
Publication: Annual Research Briefs, 2004: Center for Turbulence Research
Subject Category
Space Radiation
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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IDRelationTitle20050061070Analytic PrimaryAnnual Research Briefs, 2004: Center for Turbulence Research