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d: ? A new diffusion term is added to the energy equation – Limitations: ? Only valid for optically thick and linearly anisotropic material (thickness/depth greater than 10) ? Not valid near walls – Benefits: ? Does not require any boundary conditions since surfaces are treated as black (Emissivity = ) – Examples: ? Heat transfer through hot glass ? Heat transfer through semitransparent material Rosseland Model Radiation Modeling C6 ANSYS, Inc. Proprietary 169。 2022 ANSYS, Inc. All rights reserved. April 28, 2022 Inventory 002598 Appendix C Radiation Modeling Introduction to CFX Radiation Modeling C2 ANSYS, Inc. Proprietary 169。 2022 ANSYS, Inc. All rights reserved. April 28, 2022 Inventory 002598 Training Manual ? The Discrete Transfer Model – Limitations: ? lack of error information ? can suffer from the ray effects – Benefits: ? Nongray models are dealt with by treating each band as a separate calculation ? Better quality solution than P1 and Rosseland Models, especially whe