The Bulletin of The Korean Astronomical Society (천문학회보)
- Volume 36 Issue 1
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- Pages.34.1-34.1
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- 2011
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- 1226-2692(pISSN)
Non-grey Radiative Transfer in the Solar Surface Convection
- Bach, Kie-Hunn (Yonsei University) ;
- Kim, Yong-Cheol (Yonsei University)
- Published : 2011.04.05
Abstract
Combining a detailed non-grey radiative transfer computation with the three dimensional hydrodynamics, we investigate a reliable numerical scheme for turbulent convection in the solar surface. The solar photosphere is the extremely turbulent region composed of partly ionized compressible gases in high temperature. Especially, the super adiabatic layer (SAL) near the solar photosphere is the shallow transition region where the energy transport varies steeply from convection to radiation. In order to describe physical processes accurately, a detailed treatment of radiative transfer should be considered as well as the high resolution computation of fluid dynamics. For a direct computation of radiation fields, the Accelerated Lambda Iteration (ALI) methods have been applied to hydrodynamical medium, incorporating the Opacity Distribution Function (ODF) as a realistic schemes for non-grey problems. Computational domain is the rectangular box of dimensions
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