[RAMAN6089]

i'm an HVAC Designer and a new user for CFD also.

i need ur experience while solving a fluid problem relating to air ducts.
i have designed one ducting Plenum(air box), i'm checking the feasibilty for the same.

conditions are:
Air is supplied to the ducting system by fan at 9.14 m/s (it's a big) to fulfill the capacity of 38000 Cfm(or 64600 m3/hr) each(there are two fans)
two inlets in plenum and two outlets from plenum

my conditions for Pre are:
Inlet:
normal speed = 9.14 m/s

at outlet i'm making it as opening and static pressure= 250 Pa or 25mmWc

i'm doubtful how this static pressure is gonna effect coz there is sepration in the ducting afterwards. and if i give velocity at opening than it will forcefully withdraws the air through it. suggest