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Solver settings: Coupled, multi-grid, control-volume-based solver

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Old   April 30, 2020, 09:34
Default Solver settings: Coupled, multi-grid, control-volume-based solver
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Hello guys, I would like to replicate the CFX simulations study in this article but I am not quite sure with what solver settings are they using. There is a section where they mentioned about the solver settings but I am not sure what are they describing.

What is meant by "a coupled multi-grid control-volume-based solver was used to discretize and solve the steady, compressible continuity and Navier-Stokes equations".

And also this sentence The multi-grid based approach employed allowed for accurate calculations of long wavelength effects while the coupled aspect of the solver handled local effects

How can I apply all the settings that is mentioned to the CFX analsysis. Anyone kind to explain the details of it to me? Would appreciate the effort!

p.s. link of the article : https://link.springer.com/article/10...404-009-0452-3 pg 78

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Old   April 30, 2020, 10:17
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The highlighted text corresponds to the ANSYS CFX defaults, i.e. you do not need to search/modify anything.

The only important part you must set is the heat transfer model to use the Total Energy option
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Old   April 30, 2020, 10:19
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Quote:
Originally Posted by Opaque View Post
The highlighted text corresponds to the ANSYS CFX defaults, i.e. you do not need to search/modify anything.

The only important part you must set is the heat transfer model to use the Total Energy option
Thank your for the prompt reply and clarification!
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Old   May 1, 2020, 07:01
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Quote:
Originally Posted by Opaque View Post
The highlighted text corresponds to the ANSYS CFX defaults, i.e. you do not need to search/modify anything.

The only important part you must set is the heat transfer model to use the Total Energy option
Hello opaque, I have one more question, there seem to be a sentence in the article mentioning about mesh motion.
" Mesh motion was incorporated in the CFX model to include surface velocity components normal to the boundary."
Do you mind explaining how to apply this condition?
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Old   May 1, 2020, 08:20
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Check in the documentation for mesh deformation.

Keep in mind that a velocity normal to a wall boundary implies a deformation of the domain; therefore, other models must be activated.
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