I am designing a silencer box for our Antminer and want to simulate the flow and heat transfer in it before I build it.
The miner fans are what drives the air and I need to do the simulation to determine if the air will be drawn in through the bottom chamber and expelled via the top chamber or if there is some form of recirculation between the miner inlet and outlet.
A picture is worth a thousand words, so here are a few showing what I have done so far:
What I have done so far:
I have created a CAD model of the box in Onshape and from the model, I made a part that is the shape of the enclosed fluid volume (see pictures). I created a new project in Onshape and imported the fluid volume part. I then created a mesh which has an issue. I am now busy setting up the simulation and am experiencing a problem defining the boundary conditions.
Mesh (minor issue I can try to figure out myself)
As can be seen in the mesh picture, the mesh did not form properly around the miner. I did use a coarse mesh so I will try to run a finer mesh to hopefully solve the issue.
Boundary (the big problem)
The boundary conditions I know, i.e. atmospheric pressure & temperature at the inlet and atmospheric pressure at the outlet is not enough to run the simulation. I know the volume flow rate through the miner and roughly the amount of heat added to the air by the miner but I cannot find a way to include this in the simulation.
Can anyone give me guidelines as to what I should do in order to properly set up the simulation?