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  2. Piping - Wikipedia

    en.wikipedia.org/wiki/Piping

    Process piping and power piping are typically checked by pipe stress engineers to verify that the routing, nozzle loads, hangers, and supports are properly placed and selected such that allowable pipe stress is not exceeded under different loads such as sustained loads, operating loads, pressure testing loads, etc., as stipulated by the ASME B31, EN 13480, GOST 32388, RD 10-249 or any other ...

  3. Kozeny–Carman equation - Wikipedia

    en.wikipedia.org/wiki/Kozeny–Carman_equation

    The equation was derived by Kozeny (1927) [1] and Carman (1937, 1956) [2] [3] [4] from a starting point of (a) modelling fluid flow in a packed bed as laminar fluid flow in a collection of curving passages/tubes crossing the packed bed and (b) Poiseuille's law describing laminar fluid flow in straight, circular section pipes.

  4. Science fair - Wikipedia

    en.wikipedia.org/wiki/Science_fair

    A science fair or engineering fair is an event hosted by a school that offers students the opportunity to experience the practices of science and engineering for themselves. In the United States, the Next Generation Science Standards makes experiencing the practices of science and engineering one of the three pillars of science education.

  5. Water hammer - Wikipedia

    en.wikipedia.org/wiki/Water_hammer

    Reduce the pressure of the water supply to the building by fitting a regulator. Lower fluid velocities. To keep water hammer low, pipe-sizing charts for some applications recommend flow velocity at or below 1.5 m/s (4.9 ft/s). Fit slowly closing valves. Toilet fill valves are available in a quiet fill type that closes quietly.

  6. Hagen–Poiseuille equation - Wikipedia

    en.wikipedia.org/wiki/Hagen–Poiseuille_equation

    For velocities and pipe diameters above a threshold, actual fluid flow is not laminar but turbulent, leading to larger pressure drops than calculated by the Hagen–Poiseuille equation. Poiseuille's equation describes the pressure drop due to the viscosity of the fluid; other types of pressure drops may still occur in a fluid (see a ...

  7. Multiphase flow - Wikipedia

    en.wikipedia.org/wiki/Multiphase_flow

    The pressure difference between the beginning and the end of the pressure gradient is known as the pressure drop. The Darcy-Weisbach equation can be utilised to calculate pressure drop in a channel. The viscous force acts on a surface or area element and tends to make the flow uniform by diminishing velocity differences between phases ...

  8. ‘A Timeline Of Women Accusing Donald Trump Of Sexual Assault ...

    testkitchen.huffingtonpost.com/a-timeline-of...

    She told the paper that the incident was brief, but that she and her friends were “very grossed out.” Anderson was in her early 20s at the time, and an aspiring model. Trump’s response: A spokeswoman for Trump told The Washington Post that he “denies this phony allegation by someone looking to get some free publicity.

  9. 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.