! Hello! I have 9 inlets, and each inlet has surface area = 0.25 m², so the total area of all inlets are 0.25*9= 2.25 m². 6 inlets has one name as the inlet 1, so the area of inlet 1 is 1.5 m² and inlet 2 has 3 inlets created as one name (inlet 2) which has the area = 0.75 m². You can see my figure below:nThis is inlet 1 which has 6 inlets.nThis is inlet 2 which has 3 inlets.nThank you for your kind response to my problem! I am looking forward for your help!n