Where has it gone!

[Gromett]

A lot of glider wings make use of laminar flow and incorporate turbulator tape to control where the laminar flow detaches from the wing surface.

"Make use of" is different to "needs to be"

but in order to create lift the flow needs to be laminar

 

[Nanniemate]

What's a chatbot

 

[Kannon Fodda]

What's a chatbot

Artificial Intelligence, basically computer brain. ChatGPT is the big one at the moment. See Broken Link Removed

 

[Nanniemate]

Artificial intelligence had that for years just not been caught yet

 

[The Wino]

"Make use of" is different to "needs to be"

Not sure on this but think the flow needs to be laminar along at least part of the wing once the airflow totally detaches the wing is stalled

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[Cal54]

Well, I might have started this thread but you guys lost me several posts ago. I am however pleased that I have given you the chance to discuss the science!!

 

[Gromett]

Not sure on this but think the flow needs to be laminar along at least part of the wing once the airflow totally detaches the wing is stalled

I don't think it does need to be laminar. I think laminar flow can be used, but it not required at all. But I am not an expert so can't argue this from first principles

 

[The Wino]

I don't think it does need to be laminar. I think laminar flow can be used, but it not required at all. But I am not an expert so can't argue this from first principles

I seem to recall from my glider theory that as the airspeed reduces the centre of lift moves forwards then the flow detaches and there's turbulence above the wing at the stall. I think for an average wing section 80% of lift is from suction above the wing only 20% from increased air pressure below which at first is a bit surprising . Glider wings are pretty high tech and used winglets several years before they became common on airliners.

 

[Gromett]

I seem to recall from my glider theory that as the airspeed reduces the centre of lift moves forwards then the flow detaches and there's turbulence above the wing at the stall. I think for an average wing section 80% of lift is from suction above the wing only 20% from increased air pressure below which at first is a bit surprising . Glider wings are pretty high tech and used winglets several years before they became common on airliners.

That is also my understanding from memory. Not sure about the split between pressure differential.

 

[truffs]

Just noticed this Carol I'm glad your getting it sorted

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[Minxy]

I have questions

RedFrame your first quote above seemed correct to me.

autorouter the same thought occurred to me, although I would rather have the blocker.

RedFrame your last quote directly contradicts your first quote and contradicts what I understand to be true?

If the front of the panel is blocked there is still lift as I understand it.

Should he have said horizontal rather than vertical?

 

[autorouter]

If the wing/plate/panel is tilted, it's a combination of three things: pressure on the underside (like waterskiing), Bernouilli effect and Coanda effect. Some wing sections, on aerobatic planes and highly maneuverable fighters, have a symmetric shape that is not more curved on the top like an airliner wing. They need an angle of attack to generate any lift at all. But the upside (sorry) is they fly just as well upside down. A solar panel will probably be more like that, at least once it's detached and in flight.