Hello everyone,
I am currently working on the simulation of a ventilation system in which the air is drawn in by an AMD (Air Moving Device). The inlet should be 0 m/s, as this is where the air is drawn in, and the outlet has a speed of 6.49 m/s. I only know the air speed of the AMD (6.49 m/s). I only know the air velocity of the AMD (6.49 m/s) and would like to concentrate this velocity on a single hole in the pull system. Unfortunately, the function in SimScale does not allow the inlet value to be set directly to 0.
Hey rayaxel,
Thanks for posting on the forum.
From a simulation perspective, assigning an inlet to a face and giving it a direction towards the outside of the flow region or giving it a magnitude of 0 does not really make any sense and the results would not show any flow within the domain.
I think it would make more sense if you designed the âpullâ face as an outlet instead with your desired value of pull. (6.49 m/s) and use a different boundary condition for inlet into the flow domain.
The main goal with an incompressible simulation type such as this one would simply be the study of flow behavior. You can also try using natural convection boundary conditions to represent faces open to a known surrounding condition if that better represents your case. This boundary condition is available to use with a convective heat transfer simulation.
Let us know if you need more support!
Best,
Satvik
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I understand what you mean, but I donât know the conditions for 27 entry holes. More specifically, I donât know what data to enter as m/s. Also, the 27 holes are not all the same size, nor are they the same distance from the pull hole. Can I send you the .STEP file so you can create pictures to explain how it would work?
I would like to look at the air circulation and its flow in the body, but in the pull system and not in the push system. So far I have only done simulations with incompressible flow, which makes it a bit difficult. However, I am willing to learn. My main problem is to simulate the 27 holes in such a way that they realistically reach the value of 6.49 m/s at the pull hole. The way I imagine it, each hole would have different values due to its distance, as the air speed decreases over longer distances.