Yes, indeed, but to get that you have to be running very deep. (Why aren't they running a spinnaker?) In that case, some forward force will be...
I did a little graphic to identify the forces generated by the mainsail on the boat: [ATTACH] And yes, I was wrong in my earlier post: the thrust...
As @tlouth7 pointed out, the tension in the jib fabric primarily acts backwards. However, I don't see any evidence of the jib pulling forward at...
But, just as @tlouth7 said of the tension in the jib providing a force on the forestay pulling backwards, wouldn't the tension force in the...
@tlouth7 Is that also true for the main sheet when close reaching or working with a main as well?
No, I don't have any requirement for any type of circulation. It was Kelvin who defined circulation as the integral of a vector field around a...
What has that got to do with the term "circulation" that Kelvin coined around 1850, long before the invention of wings, to name the integral along...
Happy new year! The problem with circulation is that aerodynamics has misinterpreted the concept from fluid dynamics. In fluid dynamics...
I think you are confusing a "mental block" with a "sharp eye for detail" Because they don't "demonstrate the general principle", they are...
I have located the original source of the image fig 6.4 (above), from Pope's "Wind Tunnel Testing (1947) p.170: [ATTACH] but it is simply...
Well you're half right, Pope is indeed referenced in Ref. 2.11 on p. 198 in general terms as "According to classical textbooks on aerodynamics"....
At last, a useful post from @CarlosK2 ! Interesting. So Marchaj lifted the image from Pope - unattributed. Another nail in his coffin! (I have...
I know this thread is old, but it continues to fascinate me. Does anyone have access to the source of the figure that is presented on p. 212 as...
Hi Carlos. You are 100% correct in( 1), (2) and (3): There may be a positive over-pressure on the lower surface (1) providing the upward force...
You are right, a very strong desire. I have been searching for such a forum, but no joy yet. PhysicsForum eventually banned me....
