Brake Cooling via Brake Duct

[adignomo]

I am wondering how to conduct a conjugate heat transfer simulation analysing the performance of a brake duct in capturing air to cool the brake disc. My ultimate goal is to see how effective different brake duct designs are in cooling the disc.

I have a link to my project below.

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[igaviano]

Hi @adignomo, thanks for posting.

From what I see, your non-orthogonality is too high, which indicates issues in the CAD/Mesh such as small faces, gaps, sharp corners…

Indeed, you can spot such problematic elements by taking a look at the Mesh Quality viewer:

Please carefully follow the steps in these resources before proceeding with your simulation:

• How to Check Convergence of a CFD Simulation? | SimScale
• Divergence in Simulation: How to Tell When and Where? | SimScale
• How to Check and Improve Mesh Quality | SimScale

Cheers
Igor

[adignomo]

Hi Igor,
Thank you for the quick response! After I fix that issue what are the steps to setting up a CHT simulation?

[igaviano]

Hi @adignomo,

After preparing the model, follow these steps to set up a Conjugate Heat Transfer (CHT) simulation:

1. Create the Simulation: Select the desired geometry and click on ‘Create Simulation’. Choose the ‘Conjugate Heat Transfer v2.0’ analysis type from the list of available analysis types .
2. Set Up the Simulation: Configure the simulation settings, including boundary conditions, material assignments, and other properties. You can also activate specific simulation behaviors like radiation and select a turbulence model, such as the k-omega SST model .
3. Mesh the Model: Use SimScale’s standard meshing algorithm to create a mesh suitable for your simulation.
4. Run the Simulation: Execute the simulation and analyze the results using SimScale’s post-processing tools.

For more detailed guidance, you can refer to the tutorial on Conjugate Heat Transfer in a U-Tube Heat Exchanger.

Cheers!