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Ellipsoid Surface Drag , Drag Coefficient Equation and Calculator
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Fluids Design and Engineering Data
Ellipsoid Surface Drag, Drag Coefficient Equation and Calculator
Drag Equation:
|
Illustration
|
Description
|
L / d
|
Cd
|
Re / 104
|
Frontal Area
|
 |
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
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