simulating a small particle in a channel with laminar flow

  • Last Post 30 August 2019
AliMosayyebi posted this 26 August 2019

Hello there,


I am looking into simulating a small particle and its interaction with a solution in a channel. Can anyone please help me create and run such a simulation, please?


Some information and assumptions:

ANSYS Workbench: 2019 R2

Channel: Rectangular cross section of 10 mm X 5 mm with the length of 20 mm.

Particle: Spherical shape with a diameter of 1mm. Density: 1711 kg/m3.

1 Inlet: 1ml/min flowrate

1 outlet: outflow


I am hoping to have a start with this with someone help. Then I will look into more details to change the material of the channel, particle etc. So, your help in creating the first version would be highly appreciated. Also, a guide to where to look for a simple start in a 3D simulation.

Your help will be highly appreciated.


Order By: Standard | Newest | Votes
abenhadj posted this 27 August 2019

You might use particle scale simulation and have that particle resolved . Here you need to activate add-on macroscopic particle model.

Best regards, Amine

AliMosayyebi posted this 27 August 2019

Hi Amine,


thanks for the reply. do you have any further information on who this is done or perhaps an example similar to my case? so that I can test see if this is what I am looking for.

I seem to have difficulty finding info about this add on and how it works.


Kind Regards,


abenhadj posted this 27 August 2019

Best regards, Amine

AliMosayyebi posted this 30 August 2019

Hi Amine,


thanks for the reply,

I have tried it and seem to work sometimes.

however, I was wondering if you know of any other way in which I can define my own shape of the particle, rather than the spherical shape defined in the fluent in this method?


Also, when using this method, there is another windows other than where you define the injection (particle size, density etc ), in which the properties of point and flow rate are defined. Do you know the difference between these sections?


Lastly, after running the simulation, and when I aim to play the animation, sometimes it does not demonstrate the mesh, which is annoying. Do you happened to know how to bring the mesh up while playing the animation?


Kind Regards,


abenhadj posted this 30 August 2019

You can use the Overset approach with moving deforming mesh to model that. The overset zone can then assume any shape. 

Other alternative is to our partner software EDEM from DEM Solutions or Rocky from ESSS. You need to contact them to get licenses and we do not provide any support for that.


To bring mesh, better to define a Scene which contains all required objects: contours and mesh.

Best regards, Amine