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  2. Drag (physics) - Wikipedia

    en.wikipedia.org/wiki/Drag_(physics)

    In supersonic flow regimes, wave drag is commonly separated into two components, supersonic lift-dependent wave drag and supersonic volume-dependent wave drag. The closed form solution for the minimum wave drag of a body of revolution with a fixed length was found by Sears and Haack, and is known as the Sears-Haack Distribution .

  3. Magnus effect - Wikipedia

    en.wikipedia.org/wiki/Magnus_effect

    Streamlines for the potential flow around a circular cylinder in a uniform flow. The flow pattern is symmetric about a horizontal axis through the centre of the cylinder. At each point above the axis and its corresponding point below the axis, the spacing of streamlines is the same so velocities are also the same at the two points.

  4. Lift (force) - Wikipedia

    en.wikipedia.org/wiki/Lift_(force)

    An airfoil is a streamlined shape that is capable of generating significantly more lift than drag. [11] A flat plate can generate lift, but not as much as a streamlined airfoil, and with somewhat higher drag. Most simplified explanations follow one of two basic approaches, based either on Newton's laws of motion or on Bernoulli's principle.

  5. Drag equation - Wikipedia

    en.wikipedia.org/wiki/Drag_equation

    In fluid dynamics, the drag equation is a formula used to calculate the force of drag experienced by an object due to movement through a fully enclosing fluid. The equation is: F d = 1 2 ρ u 2 c d A {\displaystyle F_{\rm {d}}\,=\,{\tfrac {1}{2}}\,\rho \,u^{2}\,c_{\rm {d}}\,A} where

  6. Lift-induced drag - Wikipedia

    en.wikipedia.org/wiki/Lift-induced_drag

    The total aerodynamic force acting on a body is usually thought of as having two components, lift and drag. By definition, the component of force parallel to the oncoming flow is called drag; and the component perpendicular to the oncoming flow is called lift. [7] [4]: Section 5.3 At practical angles of attack the lift greatly exceeds the drag. [8]

  7. Aerodynamics - Wikipedia

    en.wikipedia.org/wiki/Aerodynamics

    External aerodynamics is the study of flow around solid objects of various shapes. Evaluating the lift and drag on an airplane or the shock waves that form in front of the nose of a rocket are examples of external aerodynamics. Internal aerodynamics is the study of flow through passages in solid objects.

  8. Today's Wordle Hint, Answer for #1273 on Friday, December 13 ...

    www.aol.com/todays-wordle-hint-answer-1273...

    If you’re stuck on today’s Wordle answer, we’re here to help—but beware of spoilers for Wordle 1273 ahead. Let's start with a few hints.

  9. Flow separation - Wikipedia

    en.wikipedia.org/wiki/Flow_separation

    In the case of airfoils, the pressure field modification results in an increase in pressure drag, and if severe enough will also result in stall and loss of lift, all of which are undesirable. For internal flows, flow separation produces an increase in the flow losses, and stall-type phenomena such as compressor surge, both undesirable ...