DragCoef_2Cylinders
Function DragCoef_2cylinders(Re) determines the drag coefficient for two round cylinders of infinite length in series crossflow.
Inputs
Re - Reynold's number
L\D - ratio of the spacing between the centers to the diameter
Outputs
DragCoef_2Cylinders - drag coefficient [-]
Reference:
Summary of Drag Coefficients of Various Shaped Cylinders,
C.F. Heddleson, D,L, Brown, and R.T. Cliffe,
APEX-299, 12th edition, General Electric, Aircraft Nuclear Propulsion Dept., April, 1957, Figure 3
Example:
Re=5e4
L\D=5
C_d1=DragCoef_Cylinder(Re) {for one cylinder}
C_d=DragCoef_2Cylinders(Re,L\D)
{Solution:
C_d=1.435
C_d1=1.063
}