Deleted
Deleted Member
Posts: 0
|
Post by Deleted on Dec 9, 2011 8:08:54 GMT -8
Yes, why not ?
You, like most people get easily distract by details and thus become unable to see the whole picture. In German "Kann den Wald vor lauter Bäumen nicht sehen" (Can not see the forest for the trees).
The turbulences in the boundary layers created by the balls are reducing the interaction with the main stream. In effect ball and turbulences are forming a streamlined (imaginary) entity. The main steam becomes a lot less turbulent or in other words more laminar and thus consume less energy.
|
|
|
Post by Donkey on Dec 9, 2011 10:40:32 GMT -8
[ You, like most people get easily distract by details and thus become unable to see the whole picture. In German "Kann den Wald vor lauter Bäumen nicht sehen" (Can not see the forest for the trees). Perhaps you can find a kinder, gentler way to say this?? It's best to maintain respectful tones here. Sometimes statements like yours above can be taken the wrong way. I'd hate to see an otherwise informative discussion descend into a flame-war.. So, the picture that I'm getting is (correct me if I'm wrong), the boundary layers themselves have internal turbulence(s) and that these (turbulence(s)) are helping to keep the boundary layers stable and separate from the main flow. Can you describe these interactions more clearly? Reiterate, clarify and add detail? Thanks.
|
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on Dec 9, 2011 11:33:09 GMT -8
I have simply stated a fact with evolutionary roots, which affects virtually everybody. Could be discussed in Off Topic if wished.
Yes.
The site Peter has linked explains it pretty well in pictures and words. Just try not to give to much focus to the details, add them to a whole picture, which is not easy. Then have another look. The exact way how the small forces between atoms and molecules are working (Like adhesion: Van-der-Waals forces, Keesom interaction, Debye interaction) is today not completely understood by science, but turbulences are weakening them as well as other working forces.
|
|