Impinging_Jets_SRN

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Impinging_Jets_SRN_ND

Procedure Impinging_Jets_SRN_ND(Re, Pr, r\D, H\D : Nusselt) calculates the average Nusselt number for a single round nozzle (SRN) jet with diameter D positioned perpendicular to a plate with its exit a distance H from the plate. The heat transfer coefficient is averaged over an area of the plate with radius r cocentric with the nozzle.

Inputs
Re - Reynolds number with characteric length equal to the diameter of the nozzle.
Pr - Prandtl number
r\D - the ratio of the radius of the surface area on the plate to the nozzle diameter
H\D - the ratio of H to D.

Outputs
Nusselt - average Nusselt number [-]

Notes:
The correlation used in this procedure is applicable for the following conditions:
     2 < H/D < 12
     2.5 < r/D > 7.5
     2000 < Re < 400000

References:
Heat Exchanger Design Handbook (2008)

Example:
Re=10000
Pr=0.7
H\D=10
r\D=5
Call impinging_jet_srn_nd(Re, Pr, r\D, H\D : Nusselt)

{Solution:
Nusselt=33.3 [-]
}

Impinging Jets Index