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  2. Static electricity - Wikipedia

    en.wikipedia.org/wiki/Static_electricity

    Charge generation increases at higher fluid velocities and larger pipe diameters, becoming quite significant in pipes 8 inches (200 mm) or larger. Static charge generation in these systems is best controlled by limiting fluid velocity. The British standard BS PD CLC/TR 50404:2003 (formerly BS-5958-Part 2) Code of Practice for Control of ...

  3. Black powder in gas pipelines - Wikipedia

    en.wikipedia.org/wiki/Black_powder_in_gas_pipelines

    Naturally occurring static charge created by the flow of gas or fluids through pipes, referred to as static adhesion. The ferrous and non-ferrous particles are charged and marry up when they contact in flow. When exposed to BPS radial magnetic fields, they attract and trap to the magnetic separator rod surface.

  4. Triboelectric effect - Wikipedia

    en.wikipedia.org/wiki/Triboelectric_effect

    Air moving past an aircraft can lead to a buildup of charge; aircraft typically have one or more static wicks to remove it. [143] Checking the status of these is a standard task for pilots. [144] Similarly, helicopter blades move fast, and tribocharging can generate voltages up to 200 kV. [145]

  5. Level sensor - Wikipedia

    en.wikipedia.org/wiki/Level_sensor

    The vibration of the probe tends to eliminate build-up of material on the probe element. Vibrating level sensors are not affected by dust, static charge build-up from dielectric powders, or changes in conductivity, temperature, pressure, humidity or moisture content. Tuning-fork style vibration sensors are another alternative.

  6. Pipe flow - Wikipedia

    en.wikipedia.org/wiki/Pipe_flow

    In fluid mechanics, pipe flow is a type of fluid flow within a closed conduit, such as a pipe, duct or tube. It is also called as Internal flow. [1] The other type of flow within a conduit is open channel flow. These two types of flow are similar in many ways, but differ in one important aspect.

  7. Diffuser (thermodynamics) - Wikipedia

    en.wikipedia.org/wiki/Diffuser_(thermodynamics)

    A diffuser is "a device for reducing the velocity and increasing the static pressure of a fluid passing through a system”. [1] The fluid's static pressure rise as it passes through a duct is commonly referred to as pressure recovery. In contrast, a nozzle is used to increase the discharge velocity and lower the pressure of a fluid passing ...

  8. Borda–Carnot equation - Wikipedia

    en.wikipedia.org/wiki/Borda–Carnot_equation

    For a sudden expansion in a pipe, see the figure above, the Borda–Carnot equation can be derived from mass-and momentum conservation of the flow. [7] The momentum flux S (i.e. for the fluid momentum component parallel to the pipe axis) through a cross section of area A is – according to the Euler equations:

  9. Hydrostatics - Wikipedia

    en.wikipedia.org/wiki/Hydrostatics

    Fluid statics or hydrostatics is the branch of fluid mechanics that studies fluids at hydrostatic equilibrium [1] and "the pressure in a fluid or exerted by a fluid on an immersed body". [ 2 ] It encompasses the study of the conditions under which fluids are at rest in stable equilibrium as opposed to fluid dynamics , the study of fluids in motion.

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