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DragForce_HexagonalBeam1

 

 

Procedure DragForce_HexagonalBeam1 returns the drag force on a hexagonal rod with the flat surface perpendicular to the flow 

 

Inputs

Fluid$ - the name of any fluid in the EES data base.  Fluid$ may be a string constant or a string variable.

T - temperature in the defined unit system [F,C,R,K]

P - pressure in the defined unit system [Pa,kPa,bar,MPa,psia,atm]

v - free stream fluid velocity in [m/s, ft/min]

W - distance between opposing flat surfaces [m or ft]

 

Outputs

F_d\L  - drag force per unit length [N/m or lbf/ft]

C_d  - drag coefficient {optional}

Re - Reynolds number {optional}

 

This procedure calls function DragCoefficient_HexagonalBeam1 to obtain the drag coefficient.

 

Example:

$UnitSystem SI C kPa 

$VarInfo F_d\L units=N/m

Fluid$='Air'

T=25 [C]

P=Po#

v=10 [m/s]

W=0.1 [m]

CALL DragForce_HexagonalBeam1(Fluid$,T,P,v,W:F_d\L,C_d,Re)

 

{Solution:

C_d=0.7 

F_d\L=4.144 [N/m]

Re=64040 

}

 

 

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