IN MANY CASES IN RECTANGULAR DUCTS DESIGNING ITS NOT EASY TO GIVE THE EXACT VALUE OF"T"SNCE ITS NOT POSSIBLE TO EQUALIZE THE STATIC PRESSURE IN EACH PRANCH .THE ATTACHED FILE INCLUDE WHAT I EXPECT AN USEFULL WAY TO FIND THE EXACT VALUE OF "T".
IN MANY CASES IT IS NOT EASY TO FIND THE EXACT VALUE OF "T" IN DESIGNING RECTANGULAR DUCTS SINCE IT IS IMPOSSIBLE TO EQUALIZE THE STATIC PRESSURE IN THE DIFFERANT PRANCHS. THE ATTACHED FILE INCLUDE WHAT I EXPECT AN EASY WAY TO FIND THE EXACT VALUE OF"T"