enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Vortex sheet - Wikipedia

    en.wikipedia.org/wiki/Vortex_sheet

    Continuous vortex sheet approximation by panel method. Roll-up of a vortex sheet due to an initial sinusoidal perturbation. Note that the integral in the above equation is a Cauchy principal value integral. The initial condition for a flat vortex sheet with constant strength is (,) =. The flat vortex sheet is an equilibrium solution.

  3. Vortex lattice method - Wikipedia

    en.wikipedia.org/wiki/Vortex_lattice_method

    Simulation of an airplane using Open VOGEL, an open source framework for aerodynamic simulations based in the UVLM. The Vortex lattice method , (VLM), is a numerical method used in computational fluid dynamics , mainly in the early stages of aircraft design and in aerodynamic education at university level.

  4. Lifting-line theory - Wikipedia

    en.wikipedia.org/wiki/Lifting-line_theory

    Lifting line theory supposes wings that are long and thin with negligible fuselage, akin to a thin bar (the eponymous "lifting line") of span 2s driven through the fluid. . From the Kutta–Joukowski theorem, the lift L(y) on a 2-dimensional segment of the wing at distance y from the fuselage is proportional to the circulation Γ(y) about the bar a

  5. Aircraft flight dynamics - Wikipedia

    en.wikipedia.org/wiki/Aircraft_flight_dynamics

    The three axis of rotation in an aircraft. Flight dynamics is the science of air vehicle orientation and control in three dimensions. The three critical flight dynamics parameters are the angles of rotation in three dimensions about the vehicle's center of gravity (cg), known as pitch, roll and yaw.

  6. Fluid dynamics - Wikipedia

    en.wikipedia.org/wiki/Fluid_dynamics

    In aerodynamics, air is assumed to be a Newtonian fluid, which posits a linear relationship between the shear stress (due to internal friction forces) and the rate of strain of the fluid. The equation above is a vector equation in a three-dimensional flow, but it can be expressed as three scalar equations in three coordinate directions.

  7. Wind-turbine aerodynamics - Wikipedia

    en.wikipedia.org/wiki/Wind-turbine_aerodynamics

    The coefficient of power is the most important variable in wind-turbine aerodynamics. The Buckingham π theorem can be applied to show that the non-dimensional variable for power is given by the equation below. This equation is similar to efficiency, so values between 0 and less than 1 are typical.

  8. Aerodynamics - Wikipedia

    en.wikipedia.org/wiki/Aerodynamics

    Internal aerodynamics is the study of flow through passages in solid objects. For instance, internal aerodynamics encompasses the study of the airflow through a jet engine or through an air conditioning pipe. Aerodynamic problems can also be classified according to whether the flow speed is below, near or above the speed of sound.

  9. Horseshoe vortex - Wikipedia

    en.wikipedia.org/wiki/Horseshoe_vortex

    In a more realistic model, the lifting-line theory, the vortex strength varies along the wingspan, and the loss in vortex strength is shed as a vortex sheet all along the trailing edge, rather than as a single trail at the wing-tips. [5]