CFD Online Logo CFD Online URL
Home > Forums > Software User Forums > ANSYS > FLUENT > Fluent UDF and Scheme Programming

Selecting mixture of species as "mass-flow-inlet" on a surface using UDF

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

LinkBack Thread Tools Search this Thread Display Modes
Old   April 7, 2015, 08:09
Default Selecting mixture of species as "mass-flow-inlet" on a surface using UDF
Baradwaj B S
Join Date: Jan 2015
Posts: 75
Rep Power: 11
Bharadwaj B S is on a distinguished road
Dear all,

My project is on wood sphere gasification, where there will be a sphere in the middle of a cylindrical flow domain having "velocity-inlet" on one side and "pressure-outlet" on other side.

There will be a "mass flow" of gases from the surface of the sphere. This is dependent on "time, mass, surface area and surrounding temperature".

Thankfully with the help of couple of members of this group, I was able to obtain the mass flow rate from the sphere surface which is currently "dependent" on "time", "mass", "surface area of sphere" and "Surrounding temperature".

Now the "mass" coming out of the sphere is by default "AIR". I want to change that to some mixture of gases say Co2, O2, N2 etc.

I went through some of the threads in this forum for choosing the mixture using UDF.

Where there were commands for only printing the "name of the species" and the "species Index".


How do I select a mixture as a fluid for "mass-flow-inlet" from sphere surface?

Is there a separate command for selecting mixture/species as the fluid which is coming out from a surface using UDF?

Any help on this regard will be of great use for me.

Thanks in advance,
Bharadwaj B S
Bharadwaj B S is offline   Reply With Quote


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
[General] Surface Flow or Integrate Variables lenkri ParaView 0 February 26, 2015 23:20
set BC mass-flow-inlet via UDF and via GUI perform different result sawa25 FLUENT 1 February 25, 2015 00:51
For a single phase flow, is there any way to check water surface level? Tanjina FLUENT 0 February 23, 2014 22:56
CFX4.3 -build analysis form Chie Min CFX 5 July 12, 2001 23:19
fluid flow fundas ram Main CFD Forum 5 June 17, 2000 21:31

All times are GMT -4. The time now is 22:37.