Contents
Impinging_Jets_ASN_ND
Procedure Impinging_Jets_ASN_ND(Re, Pr, L\S, H\S : Nusselt) calculates the average Nusselt number for an array of slot nozzels with nozzle width B positioned perpendicular to a plate with its exit a distance H from the plate. The distance between nozzle centers is L and S is 2*B.
Inputs
Re - Reynolds number with characteric length equal to the diameter of the nozzle.
Pr - Prandtl number
L\S - the ratio of the radius of the distance between nozzle centers to the nozzle width * 2
H\S - the ratio of H to the nozzle width * 2.
Outputs
Nusselt - average Nusselt number [-]
Notes:
The correlation used in this procedure is applicable for the following conditions:
1 < H/S < 40
15000 < Re < 40000
0.008 < f < 2.5 f0
where f=S/(2 L) and f0=(60+4(H\S-2)^2)^(-0.5)
References:
Heat Exchanger Design Handbook (2008)
Example:
Re=10000
Pr=0.7
H\D=4
S\D=4
Call impinging_jet_asn_nd(Re, Pr, S\D, H\D : Nusselt)
{Solution:
Nusselt=58.92 [-]
}
Impinging Jets Index