Coefficient of Drag - 2D versus 3D shapes
Coefficient of Drag - 2D versus 3D shapes
(OP)
Hi all,
In Hoerner, page 3-17, there is a table for drag coefficients of "3-dimensional bodies" and "2-dimensional shapes (between walls)". My question is, why is it that 2-Dimensional shapes have significantly higher drag co-efficient.
Let's say I have a curved panel and it is loaded as shown below. What would be the most appropriate drag coefficient for this problem statement?

I am by no means an expert in aerodynamic loading, and some assistance would be greatly appreciated.
Michael Palomar
In Hoerner, page 3-17, there is a table for drag coefficients of "3-dimensional bodies" and "2-dimensional shapes (between walls)". My question is, why is it that 2-Dimensional shapes have significantly higher drag co-efficient.
Let's say I have a curved panel and it is loaded as shown below. What would be the most appropriate drag coefficient for this problem statement?

I am by no means an expert in aerodynamic loading, and some assistance would be greatly appreciated.
Michael Palomar





RE: Coefficient of Drag - 2D versus 3D shapes
Quando Omni Flunkus Moritati
RE: Coefficient of Drag - 2D versus 3D shapes
So in my case, the most representative drag co-efficient would be Cd = 2.30 from the 2-D column.
I just needed verification before I totally kill my analysis
RE: Coefficient of Drag - 2D versus 3D shapes
Quando Omni Flunkus Moritati
RE: Coefficient of Drag - 2D versus 3D shapes