Entrainment (engineering)

See entrainment for other types.

In engineering, entrainment is the entrapment of one substance by another substance.[1] For example:

  • The entrapment of liquid droplets or solid particulates in a flowing gas, as with smoke.
  • The entrapment of gas bubbles or solid particulates in a flowing liquid, as with aeration.
  • Given two mutually insoluble liquids, the emulsion of droplets of one liquid into the other liquid, as with margarine.
  • Given two gases, the entrapment of one gas into the other gas.
  • "Air entrainment" – The intentional entrapment of air bubbles into concrete.
  • Entrainment defect in metallurgy, as a result of folded pockets of oxide inside the melt.
  1. ^ Perry, R.H.; Green, D.W., eds. (1984). Perry's Chemical Engineers' Handbook (Sixth ed.). McGraw-Hill. ISBN 0-07-049479-7.