CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Software User Forums > ANSYS > FLUENT > Fluent Multiphase

Particle simulation

Register Blogs Members List Search Today's Posts Mark Forums Read

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   May 18, 2022, 17:08
Question Particle simulation
  #1
New Member
 
jefferson
Join Date: Dec 2021
Posts: 6
Rep Power: 4
Jeffer is on a distinguished road
Hi everyone

I'm trying to running a spiral gravimetric simulation in Ansys, but I have a problem when I try to inject the particles, them no interactue with the fluid, water. I'm using turbulence model k-e RNG, Eulerian Multiphase Model with Dense Discrete Phase Model

Any suggestion?

Thanks
Jeffer is offline   Reply With Quote

Old   May 24, 2022, 18:39
Default
  #2
Senior Member
 
alainislas's Avatar
 
Alain Islas
Join Date: Nov 2019
Location: Mexico
Posts: 142
Rep Power: 7
alainislas is on a distinguished road
What kind of injection are you using? Can you post screenshots of your DPM panel?
alainislas is offline   Reply With Quote

Old   May 25, 2022, 15:47
Default
  #3
New Member
 
jefferson
Join Date: Dec 2021
Posts: 6
Rep Power: 4
Jeffer is on a distinguished road
Quote:
Originally Posted by alainislas View Post
What kind of injection are you using? Can you post screenshots of your DPM panel?
Hi, I'm using surface injection, I'm injecting two injections with differents diameters of particles, and how you can see in the images attached, the particles are bouncing hit the wall
Attached Images
File Type: jpg screenshot_panel.jpg (93.1 KB, 7 views)
File Type: jpg start_1.jpg (65.0 KB, 8 views)
Jeffer is offline   Reply With Quote

Old   May 26, 2022, 16:20
Default
  #4
Senior Member
 
alainislas's Avatar
 
Alain Islas
Join Date: Nov 2019
Location: Mexico
Posts: 142
Rep Power: 7
alainislas is on a distinguished road
What is the behavior you expect to see? What particle forces are you enabling? From the DPM panel I see you are specifying 0 velocity, why?
alainislas is offline   Reply With Quote

Old   May 27, 2022, 16:56
Default
  #5
New Member
 
jefferson
Join Date: Dec 2021
Posts: 6
Rep Power: 4
Jeffer is on a distinguished road
Quote:
Originally Posted by alainislas View Post
What is the behavior you expect to see? What particle forces are you enabling? From the DPM panel I see you are specifying 0 velocity, why?
The inlet velocity is 0 because I want the particles to have been dragged by the current.

Well, I'm simulating because I want to show how particles are separated along the spiral, for example in the image we can see the path of the flow, the water, and with that the particles don't have to bounce off the walls.

I only enable drag force, the lift force I don't know why but doesn't appear between the water and particle interaction, only appear between the air and particle is anable.

Also I'am seeing similar simulations like cyclones but doesn't work.
Attached Images
File Type: png VOF_Simulation_34.png (161.2 KB, 5 views)
File Type: jpg phase_interaction.jpg (50.0 KB, 7 views)
Jeffer is offline   Reply With Quote

Reply

Tags
cfd, fluent, particles

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
DDPM or DEM Simulation for big diameter particle roopesh99 Mesh Generation & Pre-Processing 0 June 1, 2016 02:28
Identify each particle in simulation therockyy FLOW-3D 0 July 9, 2014 05:49
restarting lagrange (particle tracking) simulation dbdias CFX 0 September 22, 2007 20:26
Pressure gradient in particle simulation Mikka Main CFD Forum 0 August 5, 2007 22:55
Pressure gradient in particle simulation Mikka Main CFD Forum 0 June 30, 2007 23:16


All times are GMT -4. The time now is 14:48.