Hello,
I'm trying to run what I thought would be a simple natural convection flow simulation of an enclosure with a 150W node inside. All I want to find is max temperature of the internal air and how it flows through the enclosure. I am new to Flow, so I've only done a couple of the tutorials to learn the basics, but I must have missed something because my results do not seem right. I'm only getting a temperature rise of a couple degrees inside the enclosure. Also, inlets are supposed to be the lower, rear louvers and outlets are supposed to be the front lid overhang vents. When I do a dynamic trajectory, the air is coming in through the lid vents. ?!?!?! I've attached my Pack&Go, any help, tips and tricks would be greatly appreciated.
Thanks,
John
Look at your mesh resolution in the inlet, it's awful:
You've got half a cell covering the entire length of the open area.
I recommend you start with a 2D analysis. It will allow you to greatly increase the mesh resolution that you need for these relatively small inlets. It's not a very realistic model, but it should give you some idea of how you need to structure the enclosure to get the best flow around your hot components.
I would also recommend modeling your mounting fixture. Right now your hot box is just floating in the middle of this enclosure, not very realistic.