PLUME

Plume

In hydrodynamics, a plume is a column of one fluid moving through another. Several effects control the motion of the fluid, including momentum, diffusion and buoyancy . Pure jets and pure plumes define flows that are driven entirely by momentum and buoyancy effects, respectively. Flows between these two limits are usually described as forced plumes or buoyant jets. "Buoyancy is defined as being positive" when, in the absence of other forces or initial motion, the entering fluid would tend to rise. Situations where the density of the plume fluid is greater than its surroundings, but the flow has sufficient initial momentum to ...

The above text is a snippet from Wikipedia: Plume (hydrodynamics)
and as such is available under the Creative Commons Attribution/Share-Alike License.

plume

Noun

  1. A feather of a bird, especially a large or showy one.
  2. The furry tail of certain dog breeds (e.g. Samoyed, Malteagle) that stands erect or curls over their backs.
  3. A cluster of feathers worn as an ornament, especially on a helmet.
  4. A token of honour or prowess; that on which one prides himself; a prize or reward.
  5. An upward spray of water or mist.
  6. An upwelling of molten material from the Earth's mantle.
  7. An arc of glowing material erupting from the surface of a star.
  8. A large and flexible panicle of inflorescence resembling a feather, such as is seen in certain large ornamental grasses.

Verb

  1. To preen and arrange feathers.
  2. To congratulate oneself proudly.
  3. To form a plume
    Smoke plumed from his pipe then slowly settled towards the floor.
  4. To write; to pen.


The above text is a snippet from Wiktionary: plume
and as such is available under the Creative Commons Attribution/Share-Alike License.

Need help with a clue?
Try your search in the crossword dictionary!