All Questions
Tagged with aircraft aerodynamics
135
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Calculating aerodynamic forces on a random object
I've set out to designing a game that would let the user design a vehicle/plane and then fly it around and I'm interested in what would be the best way to go about the physics aspect of it.
The 3d ...
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Does a helicopter fly because air is forced downwards, or because each rotor acts as an aerofoil to generate lift? [duplicate]
The answer may be a combination of the two.
Does a helicopter fly because air is caught by the rotor and thrown downwards, which causes an equal reaction in the opposite direction and 'throws' the ...
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7
answers
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Why aren't helicopter blades tapered?
From my understanding helicopter blades work similar to a planes wings, ie the air going over is faster due to the shape. So my question is why then are the blades rectangular? ie they are the same ...
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Do airfoils need narrowing tails to create a forward force?
All airfoils I have seen become narrow towards the trailing edge.
Is it still possible to create a forward vector force if the shape becomes wider again after a narrow middle section?
I read that the ...
- 31
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Is the wing drag of induced drag + 2d drag at 0lift still accurate for cambered airfoils?
I have some work at uni that requires some aerofoil analysis to create a wing, but from the polar plots its clear that the cambered aeros have lower total 2d viscous drag (from xfoil) at the cl its ...
- 113
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Mechanics of the "airplane" thrown at angle to the horizon
Good day!
I am interested in the solution of the following problem, could you please help me.
Suppose that we have some solid airplane. We throw this airplane at some angle $\theta$ to the horizon ...
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53
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Why doesn't a Hang-glider Stop Moving Forward, Stall and Fall?
Why doesn't a hang-glider stop moving forward (because of air resistance), stall and fall?
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67
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What's the reason an airplane turning 180° from strong headwinds causing it to have no ground speed does not stall?
I saw a video of a small propeller plane hovering over the ground due to strong headwinds but then turns 180 degrees and flys away. I was trying to figure out if the plane shouldn't be stalling ...
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3
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In an aeroplane's jet engine, where is the forward force applied to the mass of the plane?
In a standard jet engine on a standard aeroplane, is the majority of forward force received by the aeroplane (which causes it to be propelled forwards) applied on the compressor blades, the rotor ...
- 181
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33
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PI controller - output calculation [closed]
The propeller of an airship is connected to a DC motor. The motor is being controlled using a PI controller. The PI controller has a proportional gain of Kp = 2, and an integral gain of Ki = 0.5, and ...
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3
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503
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Would Aeroplanes or Helicopters work on our Moon?
Would Aeroplanes or Helicopters work on our Moon?
In general , I think , in Aeroplane Case:
(1) Air is required for Aeroplanes to float : Would Moon have enough air?
(2) High speed is required for ...
- 460
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Energy balance in fixed wing flight, action/reaction
When an airplane is in flight the engine of the plane overcomes drag until the plane is moving forward fast enough to balance drag. In a stable configuration the air moving over the wings creates lift ...
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78
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The suction and thrust of an aircraft engine
Does only the air sucked in (not the air that is ejected at the back of the engine) by an airliner engine (turbofan engine) causes a thrust forward or in other words pull the engine forward? and why ?
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1
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What is the main role of the Angle of Attack of an airplane, as in mainstream explanation of lift? [duplicate]
The question is conceptual and simple, it needs no more information to answer it. And I wish not to influence the answerer.
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2
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2
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58
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What is the useful limit for ground effect on an object? [closed]
What the maximum size an object can benefit from ground effect?
Also known as riding a cushion of air created from flying close to the ground, some birds can use this effect to fly with less energy ...
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