Contents


Impinging_Jets_SSN_ND

 

 

Procedure Impinging_Jets_SSN_ND(Re, Pr, r\D, H\D : Nusselt) calculates the average Nusselt number for a single slot nozzle (SRS) jet with slot width B 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 distance x from the center of the nozzle.

 

Inputs

Re - Reynolds number with characteric length equal to the diameter of the nozzle.

Pr - Prandtl number

x\S -  the ratio of the radius of the surface area on the plate to S where S=2B

H\S - the ratio of H to S.

 

Outputs

Nusselt - average Nusselt number [-]

 

Notes:

The correlation used in this procedure is applicable for the following conditions:

     2 < H/S < 10

     2 < x/S > 25

    3000 < Re < 90000

 

References:

Heat Exchanger Design Handbook (2008)

 

Example:

Re=10000

Pr=0.7

H\S=10

x\S=5

Call impinging_jet_ssn_nd(Re, Pr, x\S, H\S : Nusselt)

 

{Solution

Nusselt=35.41 [-]

}

 

Impinging Jets Index