I am modeling the effect of 3 HVLS fans on air flows (air velocity, temperature) in a plant facility and I encounter the following questions:

1. When I changed the customized fan specifications and reran the project, the result did not change. I added heat sources to some of the components in the facility but that does not seem to change the result either. But when I change the area of the disks used to represent the fans and then rerun the test, the result change. Would someone help me understand why is that?

2. When I look at the temperature cut plot, the temperature is absolutely uniform. That shouldn't be the case but I don't know where I am doing it wrong.

Thanks for your guys help!

Can you run the simulation using one of the standard fan curves instead of customized ones? See if you get a temp distribution and velocity and so on. This way we can eliminate any other potential errors. As for the fan curves, what is the pressure drop across the fan? What is the pressure/volume flow rate on the inlet face? What is the corresponding point on the fan curve? It might help if you could attach a couple screen shots of your custom fan data.

I've seen that temperature problem before, and it was because I input the fan curve wrong. The initial point in the calculation is likely for atmospheric pressure, and if you don't have a reasonable datapoint for that pressure, the calculation never gets going. Or watch how the inlet/outlet pressure changes during the first couple steps of the calculation and compare that with the fan curve, you may notice something.

1. It sounds to me like your custom fan has a outer diameter parameter that you've put in. So when you're changing that number in the model, it's scaling the mass/volume flow rate appropriately.