Describe in detail using sketches and fluid mechanics principles the
techniques used to change lift and drag characteristics of an airfoil
during takeoff and landing
Answers
Answer:
HII MATE
HERE'S THE ANSWER
Explanation:
In fluid dynamics, a stall is a reduction in the lift coefficient generated by a foil as angle of attack increases.[1] This occurs when the critical angle of attack of the foil is exceeded. The critical angle of attack is typically about 15 degrees, but it may vary significantly depending on the fluid, foil, and Reynolds number.
Stalls in fixed-wing flight are often experienced as a sudden reduction in lift as the pilot increases the wing's angle of attack and exceeds its critical angle of attack (which may be due to slowing down below stall speed in level flight). A stall does not mean that the engine(s) have stopped working, or that the aircraft has stopped moving—the effect is the same even in an unpowered glider aircraft. Vectored thrust in manned and unmanned aircraft is used to maintain altitude or controlled flight with wings stalled by replacing lost wing lift with engine or propeller thrust, thereby giving rise to post-stall technology.[2][3]
Because stalls are most commonly discussed in connection with aviation, this article discusses stalls as they relate mainly to aircraft, in particular fixed-wing aircraft. The principles of stall discussed here translate to foils in other fluids as well.
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Fluid mechanics play a very important role in the lift and drag characteristics of an aircraft during takeoff and landing.
Explanation:
- While landing of the aircraft is done there is immense amount of pressure that is transmitted to a fluid. As a result of this there is transmission of the pressure on the all parts of the liquid. hence there is decrease of the pressure on one of the wall. As a result of this there is prevention of toppling of the air craft
- There is a thrust stress that is applied when there is take off of the aircraft
To know more about fluid mechanics in aircraft,
Give reason in detail using fluid mechanics principles and ...
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