2007-10-24 09:24:53 · 10 answers · asked by Anonymous in Science & Mathematics ➔ Engineering
Considering lift is generated by the difference in air pressure above and below the wing, I'd assume that the greater potential for difference in air pressure creates greater lift.
For example, where there is little to no air pressure, the difference in pressure above and below the wing will be minimal so less lift can be generated.
2007-10-24 09:30:24 · answer #1 · answered by Nathan K 3 · 0⤊ 0⤋
More pressure allows for more lift. Think about it...if you have a vacuum tank so that there is no air in it (and no pressure), you can drop a piece of paper and a rock at the same time, and they will LAND at the same time. This is because there is no air pushing on the paper.
The less air there is, the less there is pushing up on something.
2007-10-24 16:28:48 · answer #2 · answered by agarovoy 3 · 1⤊ 0⤋
The curvature of the airfoil causes there to be a pressure buildup on the bottom part of the wing while causing pressure loss on the top. When the difference in these pressures spread over the wing create a force greater than the weight of the airplane, you have flight.
2007-10-24 16:43:24 · answer #3 · answered by Anonymous · 0⤊ 0⤋
Kind of a vague question. If you are asking about "air pressure" as in barometric pressure, at higher pressures, wings create more lift than at low barometric pressure, because there are more air molecules per volume of air.
In aviation, the overall barometric pressure that an airplane is in is referred to as "density altitude." Confusingly, instead of units of pressure, this is measured in units of altitude, where a "density altitude" of zero is equal to a barometric pressure of 29.92 at sea level at 59 deg F. As altitude or temperature increase, or barometric pressure at sea level decreases, the "density altitude" increases. In other words, wings produce less lift at high elevations, high temperatures and low barometric pressure at sea level.
2007-10-24 16:47:44 · answer #4 · answered by Anonymous · 1⤊ 0⤋
air speeding past a surface can generate low pressure...
air bombarded onto a surface can generate high pressure...
low pressure above or high pressure below a surface can create a "lift"...
for more google away..
2007-10-24 16:50:50 · answer #5 · answered by AMIT G 3 · 0⤊ 0⤋
when the air pressure is acting in the opposite direction of the force of gravity. the air pressure force must be greater or equal the force of free fall of an object.
2007-10-24 16:29:03 · answer #6 · answered by blackmachina 1 · 0⤊ 1⤋
At lower altitude, (higher pressure), less velocity
is required to generate a given amount of lift.
Stall speed rises with altitude.
2007-10-24 18:37:33 · answer #7 · answered by Irv S 7 · 0⤊ 0⤋
It is the air pressure that does the lifting............
2007-10-24 16:28:12 · answer #8 · answered by Anonymous · 1⤊ 1⤋
Your question is to general..lift in regards to what...a wing ..a brick, be more specific
2007-10-24 16:30:16 · answer #9 · answered by boscowood 4 · 0⤊ 0⤋
by lifing?
2007-10-24 16:28:13 · answer #10 · answered by Anonymous · 1⤊ 1⤋