# Radiation Model Concepts in ANSYS Fluent

Free

• Introduction to Radiation Heat Transfer Concepts
• Introduction to Radiative Transport Equation (RTE)
• Studying different Radiation Models in ANSYS Fluent
• Discrete Ordinates (DO) Radiation Model
• Discrete Transfer Radiation Model (DTRM)
• Monte Carlo (MC) Radiation Model
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## Introduction to Radiation Models Concepts

This video aims to talk about Radiation Model Concepts. In this lesson, you will first see a general introduction to the radiation model and an overview of available different radiation models in ANSYS Fluent.

This section contains the following subsections:

• Description of heat transfer and its different methods including conduction, convection, radiation
• A comprehensive description of radiation heat transfer (the exact definition of the heat transfer method, applications, characteristics and specifications, related relations, and related concepts)
• Description of essential and practical expressions in radiation:
1. black body
3. emissivity
4. irradiation and accordingly absorptivity, reflectivity, transmitivity
5. view factor
6. optical thickness
7. refractive index
8. participating effect
• Introduction of radiation module in Ansys Fluent software and different methods of the radiation model
• Description of the radiative transport equation (RTE)

We introduce different radiation model methods in Ansys Fluent software in full detail. We describe these radiation models in terms of concept and mechanism and compare them in terms of advantages and limitations. These radiation models are:

• Rosseland
• P1
• Discrete Transfer Radiation Model (DTRM)
• Surface to Surface (S2S)
• Discrete Ordinates (DO)
• Monte Carlo (MC)

This CFD Project is the 1st episode of the Radiation Model Training Course.

## Reviews

1. Mrs. Christina Effertz

The tutorial was incredibly informative. Learning about the radiation models in ANSYS Fluent has given me clarity on choosing the appropriate model for my projects.

• MR CFD Support

Thank you for your kind words! We’re thrilled to hear that our Radiation Model tutorial was able to provide you with valuable insights. Selecting the right model is crucial to achieving accurate results, and we are glad that we could assist in that process. If you have any more questions or need further clarification on certain aspects, feel free to reach out. Thank you for choosing our training course!

I just watched the ‘Radiation Model Concepts in ANSYS Fluent’ video. Is the Discrete Ordinates (DO) method suitable for all types of geometries or are there limitations on the shapes it can be applied to?

• MR CFD Support

The Discrete Ordinates (DO) method can be applied to various types of geometries; however, it is more suitable for geometries that are not extremely complex in shape. For highly complex or large geometries, it may become computationally expensive, and alternative methods like Monte Carlo (MC) might be preferable due to their flexibility. Furthermore, for special geometrical conditions or cases where accurate calculation of view factors is essential, methods such as Surface to Surface (S2S) might be more suitable.

3. Nedra O’Keefe

I’ve just completed the Radiation Model Concepts lesson in ANSYS Fluent and found it to be very comprehensive. The clear explanations of complex topics such as radiation heat transfer and the various models available were particularly helpful for my understanding.

• MR CFD Support

Thank you for your kind words! We’re delighted to hear that our Radiation Model Concepts lesson was able to clarify complex topics for you. Our goal is to provide comprehensive learning materials to help you understand and apply ANSYS Fluent effectively. Should you have any further questions or need additional guidance, please don’t hesitate to reach out.

4. Gianni Quigley

I’m thoroughly impressed by the depth of information regarding radiation models in this course. The way the concepts were explained, including optical thickness and refractive index, really helped solidify my understanding of radiation heat transfer. Great content!

• MR CFD Support

Thank you for your kind words. We’re delighted to know that our Radiation Model Concepts video was able to enhance your understanding of heat transfer. It’s great to hear that you found the explanations clear and helpful. Your feedback is greatly appreciated!

5. Assunta Sipes

I recently bought the ‘Radiation Model Concepts in ANSYS Fluent’ video tutorial. I am new to radiation models in CFD and was surprised at the depth of content and clarity. The variety of methods explained, from Rosseland to Monte Carlo, has given me a solid foundation to start applying these concepts to my own work. Thank you for this comprehensive introduction!

• MR CFD Support

Thank you for taking the time to share your positive experience with our ‘Radiation Model Concepts in ANSYS Fluent’ tutorial! We’re delighted to hear that our content provided you with a strong foundation and clarity on radiation models. It’s always gratifying to know when our materials assist our customers effectively in their learning journey. If there’s anything more we can help with in your ongoing projects, don’t hesitate to reach out! Your success is our success!

6. Prof. Maude Leannon Sr.

I really appreciated the detailed overview of radiation models provided by MR CFD. The breakdown of heat transfer methods and in-depth information on the specifics of radiation such as black body, emissivity, and view factors, as well as the pros and cons of various models like DO and Monte Carlo, was very informative.

• MR CFD Support

We’re so pleased to hear that you enjoyed the Radiation Model Concepts video and found it informative. Your feedback is invaluable to us, and we thank you for taking the time to share your positive experience with this learning material!