DragForce_Cuboid
Procedure DragForce_Cuboid returns the drag force on a cuboid of dimensions a, b, c with face a b 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]
a, b, c - dimensions of the cuboid with face a b being the frontal area
Outputs
F_d - drag force [N/m or lbf/ft]
C_d - drag coefficient {optional}
Re - Reynolds number
Reference:
Haider and Levenspiel (1989)
"Drag Coefficient and Terminal Velocity of Spherical and Nonspherical Particles,"
Powder Technology, Vol. 58, pp. 63-70, (1989).
Example:
$UnitSystem SI Pa J K m
$VarInfo F_d units=N
$VarInfo h units=W/m^2-K
T=325 [K]
P=101325 [Pa]
Fluid$='Air'
V=20 [m/s]
a=0.2 [m]
b=0.2 [m]
c=0.2 [m]
CALL DragForce_Cuboid(Fluid$,T,P,v,a,b,c:F_d,C_d,Re)
{Solution:
C_d=1.372
F_d=11.92 [N]
Re=273364
}