Looking for a picture showing ideal flow around a valve...

[jayb]

Somewhere I saw this picture, and can't remember where.  It showed a valve in a flow bench and you could see the flow of air around the valve.  Could be that there was some smoke or coloring added to the air, or it could have been a wet flow bench picture.  Seems to me I saw this in a book, maybe Power Secrets by Smokey Yunick.  Anybody remember seeing this picture?  I'd really like to have a copy of it.  None of the books I have show that photo...

[machoneman]

Somewhere I saw this picture, and can't remember where.  It showed a valve in a flow bench and you could see the flow of air around the valve.  Could be that there was some smoke or coloring added to the air, or it could have been a wet flow bench picture.  Seems to me I saw this in a book, maybe Power Secrets by Smokey Yunick.  Anybody remember seeing this picture?  I'd really like to have a copy of it.  None of the books I have show that photo...

Is this it? https://www.enginebuildermag.com/2016/10/flow-bench-testing-is-more-than-cfm-numbers/

If not, click this link and look to the right for a panel with other colored pics of flow: https://www.google.com/search?q=picture+of+flow+bench+and+flow&rlz=1C1CHBF_enUS768US768&source=lnms&tbm=isch&sa=X&ved=2ahUKEwjX0frwgcbpAhVSds0KHUdHA5EQ_AUoAXoECAsQAw&biw=1280&bih=689#imgrc=FBCujh02WXH_2M

[jayb]

Nope, that's not it.  I think it was actually a photograph, maybe in a black and white book although I'm not sure about that.  If I recall correctly it was the valve, all by itself, showing flow straight down the stem and around the head.  The point of the photo was to show how ideal flow around a poppet valve is symmetrical around all sides of the valve.  Thanks anyway, Bob...

[WConley]

I checked my nerdy engine design references, and found no such picture 

A Google Image search of "Ideal Intake Port Flow" brings up a bunch of computational fluid dynamics results that look interesting.  Have a look at this one here:

https://www.caeses.com/blog/2018/intake-port-design/

[Royce]

Jay, I vaguely remember such a picture.  Maybe one of the David Vizard books?

[Barry_R]

Look up Darrin Morgan's wet flow research.  Might have what you are looking for

[wayne]

Port and flow test by David Vizard i dont have my copy to check.

[jayb]

Port and flow test by David Vizard i dont have my copy to check.

I've got that one, lots of good info there but not the picture I'm looking for...

[chilly460]

This?

[wowens]

I don't know it that's it or not but it is cool as hell.

[jayb]

This?

That is IT!  Thanks!

[57 lima bean]

I don't know it that's it or not but it is cool as hell.

    Very!    https://www.youtube.com/watch?v=EGDvR-7ughY

[Dr Mabuse]

That photo has a fairly high resolution - there must be more like it, somewhere.
=

[KMcCullah]

Smokeyvision. Definitely some Jedi level research he did.

[1968galaxie]

Smokey did not leave many stones unturned to win. Even 7/8 scale bodies I recall.

The laminar flow machine was something used for airfoil design back in the day.
I wonder if it helped his cylinder head work back then?
There was only so much one could do with the existing heads and manifolds that were used.