MC wrote:

Well if you know the answer then post it.

I may or may not know the answer, but at least I know the question.

... I'll be impressed

Impressing you is not among my concerns.

.... if you can
correctly state the boundary conditions for vortex shedding.

Are you talking about a starting vortex, a tip vortex, or trailing edge
turbulence?

DSK

a tip vortex, or trailing edge
turbulence?

a tip vortex is not th same thing as trailing edge tubulence, though each
orginates for the same reason. Different dynamics, different effects.

go read another Popular Mechanix article.

a tip vortex, or trailing edge
turbulence?


JAXAshby wrote:
a tip vortex is not th same thing as trailing edge tubulence,

Very good Jax! I can see why MC refers to you for these difficult
questions.... a tip vortex forms at the tip, and a vortex formed by
trailing edge turbulence is at the trailing edge... shucks why didn't I
think of that!

... though each
orginates for the same reason.

Which is? (sound of Jeapordy music)

.. Different dynamics, different effects.

Wait a minute, I thought you said they formed for the same reason?


go read another Popular Mechanix article.

Is that where you get your technical info?

DSK

a vortex formed by
trailing edge turbulence is at the trailing edge.

you don't understand the meaning of the word, "vortex", for there is no vortex
at the trailing edge. check the dictionary.

.. Different dynamics, different effects.

Wait a minute, I thought you said they formed for the same reason?


they do, but the **dynamics** AND the **effects** are different. which word
didn't you understand?

DSK

a vortex formed by
trailing edge turbulence is at the trailing edge.



JAXAshby wrote:
you don't understand the meaning of the word, "vortex", for there is no vortex
at the trailing edge. check the dictionary.

The one that said you were wrong about "vortices"?

Anyway, a vortex can certainly form at a trailing edge. In general, ones
that do are temporary.... but then MC asked about shedding and he wasn't
(I assume) talking about dogs.

One way to suppress a tip vortex is to deliberately induce a vortex
slightly inboard along the trailing edge. That is part of what makes
wing keels work.



.. Different dynamics, different effects.

Wait a minute, I thought you said they formed for the same reason?



they do, but the **dynamics** AND the **effects** are different. which word
didn't you understand?

Oh, I understand the words just fine. Your explanation is a little bit
fuzzy, though. Would you clarify?

DSK

jesus h. crhist dougies! knock it off! that was the worst bull**** I have
EVER seen you come up with!

a vortex formed by
trailing edge turbulence is at the trailing edge.



JAXAshby wrote:
you don't understand the meaning of the word, "vortex", for there is no
vortex
at the trailing edge. check the dictionary.

The one that said you were wrong about "vortices"?

Anyway, a vortex can certainly form at a trailing edge. In general, ones
that do are temporary.... but then MC asked about shedding and he wasn't
(I assume) talking about dogs.

One way to suppress a tip vortex is to deliberately induce a vortex
slightly inboard along the trailing edge. That is part of what makes
wing keels work.



.. Different dynamics, different effects.

Wait a minute, I thought you said they formed for the same reason?



they do, but the **dynamics** AND the **effects** are different. which
word
didn't you understand?

Oh, I understand the words just fine. Your explanation is a little bit
fuzzy, though. Would you clarify?

DSK

JAXAshby wrote:
jesus h. crhist dougies! knock it off! that was the worst bull**** I have
EVER seen you come up with!

Considering that I don't need to "come up with bull****" that wouldn't
be hard.

DSK

Doug,

Would you like a picture of my boat's keel and the modification to force
the vortex down to the wing where it is controlled and kept from
becoming a tip vortex?

Ole Thom

DSK wrote:


MC wrote:


Well if you know the answer then post it.


I may or may not know the answer, but at least I know the question.

... I'll be impressed


Impressing you is not among my concerns.

.... if you can correctly state the boundary conditions for vortex
shedding.


Are you talking about a starting vortex, a tip vortex, or trailing edge
turbulence?


Good lord.

Cheers

"MC" wrote in message
...


Good lord.

Very "Bobesque".

Offensive, and yet totally devoid of any real information.




Regards


Donal
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