Antonio Sola
Subscriber

And what represents the pressure at the inlet? Why is bigger when the annular duct diameter is smaller?

I understand the domain average is more complecated because I don't have the same number of elements in all models and what you say, but the comparisons using the same scales show the pressure is always smaller (almost at all the points) when the annular duct increase its diameter...

In case 1 there are 13 cels in the annular gap..

Thank you!