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NEED HELP!! Resistances don't guide the flow

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josemaria_perez_villacampa
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NEED HELP!! Resistances don't guide the flow

Hi, I am trying to model perforated tiles for a data center and the resistances don't guide my flow to be uni-directional. I have tried everything... Surface resistance, volume resistance, applying pressure loss factors, free-area ratios... None of this combinations neither variating the advection scheme seem to work. The velocity always has a non-flow component.

Does anyone have any advice or recommendation about how to model this parts? It would be greatly appreciated because I am stuck here.

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@josemaria_perez_villacampa wrote:

Hi, I am trying to model perforated tiles for a data center and the resistances don't guide my flow to be uni-directional. I have tried everything... Surface resistance, volume resistance, applying pressure loss factors, free-area ratios... None of this combinations neither variating the advection scheme seem to work. The velocity always has a non-flow component Learn more

Does anyone have any advice or recommendation about how to model this parts? It would be greatly appreciated because I am stuck here.


Hello,

I'm sorry to hear you're having trouble with modeling perforated tiles for your data center. Here are a few additional suggestions that might help:

  1. Check Boundary Conditions: Ensure that your boundary conditions are accurately set up to reflect the real-world scenario. Sometimes, incorrect boundary conditions can lead to non-physical results.

  2. Mesh Refinement: Try refining the mesh around the perforated tiles to capture the flow details more accurately. A finer mesh can help in resolving the flow patterns better.

  3. Use of Source Terms: Consider adding source terms to your model to account for the momentum loss due to perforation. This can help in better simulating the actual flow behavior.

  4. Consult Literature: Look for research papers or technical articles on similar modeling efforts. For example, the paper "Perforated tile models for improving data center CFD simulation" on Academia.edu discusses various techniques that might be useful.

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