DragCoef_DiamondBeam_rounded
Function DragCoef_DiamondBeam_rounded(Re) the drag coefficient for a diamond-shaped beam (with rounded edges) of infinite length in crossflow
Inputs
Re -Reynolds number
r\W - ratio of the radius of curvature to the distance between opposing edges
Outputs
DragCoef_DiamondBeam_Rounded - drag coefficient [-]
Reference:
National Advisory Committee for Aeronautics, Technical Note 3038, "Low-Speed Drag of Cylinders of Various Shapes, N.K. Delany and NM.E. Sorenson, Washington, Nov, 1953.
(Note: interpolation of the data in the plots of this reference for r\w values of 0.015, 0.118, and 0.235 are used to allow r\W to range between 0 and 0.235.)
Example:
Re=1e5
r\W=0.1
C_d=DragCoef_Diamondbeam_rounded(Re,r\W)
{Solution:
C_d=1.526
}