Topics similar to or like Stall (fluid dynamics)
Reduction in the lift coefficient generated by a foil as angle of attack increases. Wikipedia
Hazardous flight condition in helicopters and other rotary wing aircraft, where the retreating rotor blade has a lower relative blade speed, combined with an increased angle of attack, causing a stall and loss of lift. Primary limiting factor of a helicopter's never exceed speed, VNE. Wikipedia
Moving parallel to an axis called the zero-lift axis When the angle of attack on an aerofoil is measured relative to the zero-lift axis it is true to say the lift coefficient is zero when the angle of attack is zero. Better than the chord line when describing the angle of attack. Wikipedia
Solid object with a shape such that when placed in a moving fluid at a suitable angle of attack the lift is substantially larger than the drag (force generated parallel to the fluid flow). Gas, the foil is called an airfoil or aerofoil, and if the fluid is water the foil is called a hydrofoil. Wikipedia
Sentences forStall (fluid dynamics)
- This is beneficial because it increases the margin above the stall of the outboard half, maintaining aileron effectiveness and reducing the likelihood of asymmetric stall, and spinning.
- The aircraft had entered pitch-up: the high-mounted tailplane became trapped in the turbulent wake produced by the wings (deep stall), which prevented recovery from the stall.
- A spin occurs only after a stall, so the FAA emphasizes training pilots in stall recognition, prevention, and recovery as a means to reduce accidents due to unintentional stalls or spins.
- Some designers of recreational aircraft seek to develop an aircraft that is characteristically incapable of spinning, even in an uncoordinated stall.
- 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 low-pressure area develops on the windward side of the fin, which can lead to cavitation, leading to a sudden loss of lift, called "spin-out" (equivalent to "stalling" in flight terminology).
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