Looking for the source of some Aerodata

[Gildasd]

I am using the values on this list for a University project.
This image can be found in a multitude of places (Nasa to Wikipedia), but I cannot find it's origin!

Any ideas?
It 's hand drawn, so I could be from the NACA era...

 

[martinbayer]

According to this link http://physics.stackexchange.com/questions/201633/what-shape-has-the-highest-drag-coefficient, it's Figure 33 from Sighard Hoerner's Fluid Dynamic Drag, Chapter 3.

Martin

 

[Gildasd]

According to this link http://physics.stackexchange.com/questions/201633/what-shape-has-the-highest-drag-coefficient, it's Figure 33 from Sighard Hoerner's Fluid Dynamic Drag, Chapter 3.

Martin

Sir, I thank you!
How the hell did you find this?

 

[Dragon029]

Using Google reverse image search works.

 

[Gildasd]

Using Google reverse image search works.

I'll explore that... Thanks again!

 

[martinbayer]

According to this link http://physics.stackexchange.com/questions/201633/what-shape-has-the-highest-drag-coefficient, it's Figure 33 from Sighard Hoerner's Fluid Dynamic Drag, Chapter 3.

Martin

Sir, I thank you!
How the hell did you find this?

I did a Google search for "shape" and "drag coefficient" and looked at the image results.

Martin

 

[Gildasd]

According to this link http://physics.stackexchange.com/questions/201633/what-shape-has-the-highest-drag-coefficient, it's Figure 33 from Sighard Hoerner's Fluid Dynamic Drag, Chapter 3.

Martin

Sir, I thank you!
How the hell did you find this?

I did a Google search for "shape" and "drag coefficient" and looked at the image results.

Martin

I missed it... Feeling a bit silly now.
Went through so many links with so many variations that I did not bother reading the text above the image. "Slaps forehead"
Thanks again.

 

[Gildasd]

When a shape creates a Karman Vortex street behind it, can it be argued that it is hight drag at that Reynolds number/wind speed?

Using maths, it seems to be the case, but I can't find a quote in a reliable scientific paper linking the two...

Any ideas on sources for this?