What is the Best CFD Software for Modeling Heat Flow from a Jet Engine Exhaust?

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Discussion Overview

The discussion revolves around identifying suitable computational fluid dynamics (CFD) software for modeling heat flow from a jet engine exhaust over a plate. Participants explore various software options and considerations related to boundary conditions and modeling complexity.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant seeks recommendations for CFD software to visualize airflow and temperature gradients near a jet engine exhaust.
  • Another participant suggests using Ansys Fluent, indicating it as a viable option for the modeling task.
  • Some participants mention that major software like Ansys Fluent, CFX, and Star could be suitable, especially for conjugate heat transfer models, but emphasize the importance of boundary conditions.
  • Concerns are raised about the adequacy of Solidworks Flow Simulation for complex CFD modeling, particularly regarding thermal boundary layers and heat convection boundary conditions.
  • A participant expresses uncertainty about the boundary conditions and the need for flexibility in modeling, suggesting a simplified exit profile from experimental data.

Areas of Agreement / Disagreement

Participants generally agree on the potential of Ansys software for the task, but there is disagreement regarding the suitability of Solidworks Flow Simulation for more complex modeling needs. The discussion remains unresolved regarding the best approach and software choice.

Contextual Notes

Participants note that the boundary conditions are not well established, and assumptions about the exit profile from the jet nozzle may vary. There is also uncertainty about the complexity of the modeling required.

TJ_Laser
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Hi guys this is my first post. I hope it's in the right place.

I am trying to model heat flow over a plate positioned very close to exhaust from a jet engine. Can anyone recommend software that can do this? I'd like to be able to visualize the airflow itself, its temperature and the temperature gradient of the plate where it contacts the airflow.
 
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TJ_Laser said:
Hi guys this is my first post. I hope it's in the right place.

I am trying to model heat flow over a plate positioned very close to exhaust from a jet engine. Can anyone recommend software that can do this? I'd like to be able to visualize the airflow itself, its temperature and the temperature gradient of the plate where it contacts the airflow.

Try Ansys-Fluent module. hope this helps you
 
Any of the big ones will be fine (Ansys Fluent or CFX, Star, etc). If you want to do a full conjugate heat transfer model, then you'll probably need a heat transfer and multiphysics license.

What's important in this problem are your boundary conditions. Are you assuming a uniform exit profile from the jet nozzle? Do you have an experimental or numerical profile? Temperature can vary quite a bit coming out of the turbine.
 
Ansys looks promising. I will look into it.

We don't yet know the full scope of this project and the boundary conditions are not well established. I believe the gas flow will be simplified from experimental data. I think it's safe to say the exit profile is uniform but I'd like the freedom to model something more complicated should the need arise.

Thanks for the helpful replies.
 
Follow up: Solidworks Flow Simulation is doing the trick beautifully.
 
Be careful with that package. It is not intended for any complex, serious CFD modeling. I would certainly certainly NOT pull heat convection BCs out of it. You may be decent on a pressure drop, but it will be very hard to get a proper thermal boundary layer.
 
Oh really? I didn't realize that. Maybe I'll keep looking then.
 

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