Cyclone with the Motion of Particles, Ansys Fluent Training

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In this project, a cyclone with the motion of the particle has been simulated and the results of this simulation have been investigated.

This product includes Geometry & Mesh file and a comprehensive Training Movie.
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Cyclone Project Description

In this project, the motion of particles in a cyclone has been simulated by Ansys Fluent software. We used the one-way DPM to simulate the discrete phase. A cyclone is a device used to separate particles from gas and has many applications in industry.

Geometry & Mesh

The 3D geometry of this project has been produced with SpaceClaim software. The length and width of the computational area is 101 mm, and its height is 363 mm.


Mesh is created with ICEM CFD software and the mesh type is unstructured. The number of cells is 371350.


Cyclone CFD Simulation

To simulate the present model, we consider several assumptions:

  • The solver is pressure-based.
  • The current simulation is unsteady in terms of time.
  • The gravity effect is equivalent to -9.81 m.s-1.

Here is a summary of the steps for defining the problem and its solution in the following table:

Viscous model Reynolds stress
Discrete phase on
particle treatment unsteady particle tracking
material in injection anthracite
particle type in injection inert
injection type group
Boundary conditions
Inlet Velocity inlet
velocity magnitude 5.9 m.s-1
discrete phase BC type escape
Outlet Pressure outlet
gauge pressure 0 Pascal
discrete phase BC type escape
walls Wall
wall motion stationary wall
discrete phase BC type reflect
Solution Methods
Pressure-velocity coupling   simple
Spatial discretization pressure second-order
momentum second-order upwind
Modified turbulent viscosity first-order upwind
Initialization method   hybrid

Cyclone Results

In this simulation, the behavior of particle motion in the cyclone is investigated. It is observed that most of the particles entering from the inlet exit from the lower outlet and air also leave the upper outlet, and a small number of particles are trapped in the upper part of the cyclone. They are and will continue to rotate forever.

You can obtain Geometry & Mesh file and a comprehensive Training Movie that presents how to solve the problem and extract all desired results.


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