Related Resources: fluid flow

Ellipsoid Surface Drag , Drag Coefficient Equation and Calculator

Air Flow Drag, Drag Coefficient Equation & Calculators
Fluids Design and Engineering Data

Ellipsoid Surface Drag, Drag Coefficient Equation and Calculator

Drag Equation:

Drag Equation

Illustration
Description
L / d
Cd
Re / 104
Frontal Area
Ellipsoid Surface Drag Coefficient Equation
Long
Symmetrical Airfoil
5
2.5
1.25
0.06
0.07
0.13
100
π d2 / 4

Where:

D = Drag (N);
Cd = Drag Coefficient (unit less);
ρ = fluid density (kg/m3);
L = Length (m);
d = Depth (m);
A = frontal area (m2);
V = fluid velocity (m/sec);
d = Diameter (m);
Re = Reynolds Number (unit less)

Density of air = 1.225 kg/m3