CFD Online Logo CFD Online URL
Home > Forums > Software User Forums > ANSYS > FLUENT

3D Mixture Gas Simulation

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

LinkBack Thread Tools Search this Thread Display Modes
Old   January 10, 2017, 15:20
Default 3D Mixture Gas Simulation
New Member
Wolfgang Black
Join Date: Nov 2015
Posts: 11
Rep Power: 9
wjbvg5 is on a distinguished road

I'm having some trouble with a few things on a simulation I'm trying to run in the student version of Ansys (17.2).

I'll list my problems in order and reference any relevant images.

My set up is shown below. It has a flow volume with co-axial flow and 2 side inlets into a box volume, with a round exit at the top.

I'd like the outlet at the top to be at atmospheric pressure, so it is currently set as pressure outlet gauge pressure = 0.

My first problem is that I want to have the initial species to be entirely air, and have argon come in through the co-axial and side entrances. However, using mixture I can't figure out how to get the volume to be initially air. If I set this using fluid, as opposed to mixture, I can't seem to set the inlets to be argon. Any advice would be appreciated.

I am currently using the Realized K-E model for the turbulence, since there exists swirl and a round jet will form which exits into the box volume. I'm having issues with convergence, is this a mesh issue or a model issue? Any advice would be appreciated.

NOTE: This is a post on the ansys board as well but I haven't gotten any help so I figured I'd double post.
Attached Images
File Type: jpg Slide1.JPG (41.6 KB, 6 views)
wjbvg5 is offline   Reply With Quote


ansys, fluent, mixture, species

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
Mixture averaged/Multicomponent transport in openFoam reacting flow simulation sahmed OpenFOAM Running, Solving & CFD 1 March 5, 2017 01:21
3D Mixture Gas Simulation wjbvg5 ANSYS 0 January 9, 2017 16:57
Fluent Simulation of gas mixture in the pipe FLUENT 1 November 26, 2016 00:59
Simulation in gas explosion nilambar CFX 3 October 18, 2012 05:02
Gas mixture thermo properties guy_smiling OpenFOAM 0 March 11, 2011 21:45

All times are GMT -4. The time now is 14:12.