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How to Handle Complex Flow Domains - ANSYS e-Learning
Complex flow domains are often encountered in CFD analysis. Meshing complex flow domains requires mesh settings for detailed geometric features such as highly curved surfaces, tight gaps, engineering clearance, etc. These features will result in a complex mesh with a very large element count, due to the use of small isotropic tetrahedron elements to resolve them.
ANSYS Workbench meshing offers a variety of methods that allow the user to decompose the complex flow domain into many connected parts. The user can then select the most appropriate meshing method for each flow volume, and reconnect them in either CFX or Fluent to form the original flow domain. This step can reduce the overall element count while maintaining or improving numerical accuracy.
- Flow domain decomposition
- Selection of WB meshing method for each part
- Connecting flow domain parts in CFX or Fluent
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