enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Flow (mathematics) - Wikipedia

    en.wikipedia.org/wiki/Flow_(mathematics)

    Informally, a flow may be viewed as a continuous motion of points over time. More formally, a flow is a group action of the real numbers on a set. The idea of a vector flow, that is, the flow determined by a vector field, occurs in the areas of differential topology, Riemannian geometry and Lie groups.

  3. Transition (linguistics) - Wikipedia

    en.wikipedia.org/wiki/Transition_(linguistics)

    A transition or linking word is a word or phrase that shows the relationship between paragraphs or sections of a text or speech. [1] Transitions provide greater cohesion by making it more explicit or signaling how ideas relate to one another. [1] Transitions are, in fact, "bridges" that "carry a reader from section to section". [1]

  4. Laminar flow - Wikipedia

    en.wikipedia.org/wiki/Laminar_flow

    An everyday example is the slow, smooth and optically transparent flow of shallow water over a smooth barrier. [ 8 ] When water leaves a tap without an aerator with little force, it first exhibits laminar flow, but as acceleration by the force of gravity immediately sets in, the Reynolds number of the flow increases with speed, and the laminar ...

  5. Fluid dynamics - Wikipedia

    en.wikipedia.org/wiki/Fluid_dynamics

    The green vortex generators prompt the transition to turbulent flow and prevent back-flow also called flow separation from the high-pressure region in the back. The surface in front is as smooth as possible or even employs shark-like skin , as any turbulence here increases the energy of the airflow.

  6. Segue - Wikipedia

    en.wikipedia.org/wiki/Segue

    In audio/visual media, a segue is a transition from a song, scene or topic to another one. A segue allows the disc jockey, director or show host to naturally proceed from one song or scene or topic to another without jarring the audience. A good segue makes the transition look natural and effortless, such as from one live event to another.

  7. Turbulence - Wikipedia

    en.wikipedia.org/wiki/Turbulence

    laminar flow occurs at low Reynolds numbers, where viscous forces are dominant, and is characterized by smooth, constant fluid motion; turbulent flow occurs at high Reynolds numbers and is dominated by inertial forces, which tend to produce chaotic eddies, vortices and other flow instabilities. The Reynolds number is defined as [24]

  8. Flow separation - Wikipedia

    en.wikipedia.org/wiki/Flow_separation

    For internal flows, flow separation produces an increase in the flow losses, and stall-type phenomena such as compressor surge, both undesirable phenomena. [8] Another effect of boundary layer separation is regular shedding vortices, known as a Kármán vortex street. Vortices shed from the bluff downstream surface of a structure at a frequency ...

  9. Marangoni effect - Wikipedia

    en.wikipedia.org/wiki/Marangoni_effect

    Then, this flow is used to control floating objects in both position and orientation and can prompt the self-assembly of floating objects, profiting from the Cheerios effect. The Marangoni effect is also important to the fields of welding , crystal growth and electron beam melting of metals.