A Numerical Study on the Flowfield of a Cyclone Separator for Oil Droplets

오일입자 원심분리기 유동장의 수치해석적 연구

Kim, Sang-Dug

  • Received : 2015.08.25
  • Accepted : 2015.12.10
  • Published : 2015.12.31


The cyclone separator is a simple device, which causes the centrifugal separation of materials such as droplets or particles in a fluid stream. The cyclone separator utilizes the energy obtained from fluid pressure and linear motion to create rotational fluid motion. This rotational motion leads the materials suspended in the fluid to separate from the fluid quickly due to the centrifugal force. The rotation is produced by the tangential or involuted introduction of fluid into the vessel. These materials may be droplets of fuel in blow-by gas through an engine. Droplets suspended in the feed liquid may separate according to size, shape, or density. And the change of part dimension in a cyclone separator can yield the its performance variation. The current study shows the influence of design parameters on the performance of a cyclone separator for blow-by gas.


Cyclone separator;Oil droplet;Two-phase flow;Rotational flow


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