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  2. Airfield traffic pattern - Wikipedia

    en.wikipedia.org/wiki/Airfield_traffic_pattern

    Traffic patterns can be defined as left-hand or right-hand according to which way the turns in the pattern are performed. They are usually left-hand turns because most small airplanes are piloted from the left seat (or the senior pilot or pilot-in-command sits in the left seat), and so the pilot has better visibility out the left window.

  3. Vortex lattice method - Wikipedia

    en.wikipedia.org/wiki/Vortex_lattice_method

    The vortex lattice method is built on the theory of ideal flow, also known as Potential flow.Ideal flow is a simplification of the real flow experienced in nature, however for many engineering applications this simplified representation has all of the properties that are important from the engineering point of view.

  4. Dutch roll - Wikipedia

    en.wikipedia.org/wiki/Dutch_roll

    For example, in a left yaw the left wing slews toward the rear so that airflow is displaced spanwise from its normal front-to-rear path over the airfoil section. That reduces lift. Simultaneously, the advancing right wing gets more chordwise flow, and so its lift is increased. In combination the two conditions create a left roll.

  5. Holding (aeronautics) - Wikipedia

    en.wikipedia.org/wiki/Holding_(aeronautics)

    The fix is the start of the first turn of the racetrack pattern. [2] Aircraft will fly towards the fix, and once there will enter a predefined racetrack pattern. A standard holding pattern uses right-hand turns and takes approximately 4 minutes to complete (one minute for each 180-degree turn, and two one-minute straight ahead sections). [1]

  6. Maddox rod - Wikipedia

    en.wikipedia.org/wiki/Maddox_rod

    To measure the horizontal deviation, the Maddox rod is placed in front of the right eye (it is done on both eyes) with the cylinder horizontal, making the red line vertical. The patient is then asked whether the white light is superimposed on the red line, or if it is to the left or right of the red line.

  7. Midpoint method - Wikipedia

    en.wikipedia.org/wiki/Midpoint_method

    The step size is = The same illustration for = It is seen that the midpoint method converges faster than the Euler method. The midpoint method is a refinement of the Euler method + = + (,), and is derived in a similar manner.

  8. Five-point stencil - Wikipedia

    en.wikipedia.org/wiki/Five-point_stencil

    An illustration of the five-point stencil in one and two dimensions (top, and bottom, respectively). In numerical analysis, given a square grid in one or two dimensions, the five-point stencil of a point in the grid is a stencil made up of the point itself together with its four "neighbors".

  9. Spectral method - Wikipedia

    en.wikipedia.org/wiki/Spectral_method

    where the expression on the left denotes the second partial derivatives of f in x and y, respectively. This is the Poisson equation, and can be physically interpreted as some sort of heat conduction problem, or a problem in potential theory, among other possibilities. If we write f and g in Fourier series: