Hello!
I am trying to simulate venting air inside of a simple box. I created a box in AutoDesk Inventor and added slits to the side to simulate a vent. I will note that I am brand-new to CFD and have basic knowledge in 3D-CAD.
Would this be a simulation where I would specify an inner flow volume or an external flow volume? I’m also struggling to select the right seed/boundary faces for the simulation.
All I’d like to see is a simulation of air being pulled out of that “vent”. I tried adding a fan to each vent hole, but I don’t know if that is correct.
Simple Box Venting
Hi @cooperkramer, thanks for posting!
You’re off to a great start. Let me try and answer your questions:
- From what you’ve described, this can be an internal volume problem - although there is nothing stopping it from being an external one as well
- For a first simulation, I’d strongly advise you to simulate only the internal problem and approximate the external heat transfer using a wall boundary condition
- Since you’re new around here, all this might seem a bit abstract. This tutorial seems to tackle the exact question you’d like answered: Thermal Management Tutorial: Electronics Box Cooling | SimScale. However, as it’s a bit complex, maybe trying some simpler ones first is a good approach (SimScale Tutorials and User Guides | Cloud-Based CAE | SimScale)
- The CAD model you’ve imported is already a single and “filled up” solid. So if you were to simulate on it, this would already be the flow region. Try and take a look at some of the tutorials first and you’ll understand what we mean by this flow region generation process
- Basically, you’d need the actual solid parts then generate a volume which would represent where the fluid would be in reality
- In such solid, you’d assign the boundary conditions
Cheers
Igor