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

Modelling a radially-expanding sphere on Fluent

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   April 7, 2024, 12:31
Smile Modelling a radially-expanding sphere on Fluent
  #1
New Member
 
Tanishq
Join Date: Apr 2024
Posts: 1
Rep Power: 0
tanishq1402 is on a distinguished road
I have been working on a problem related to deflagration of hydrogen-air mixture. The flame acts as a spherical wall of fixed temperature and is radially expanding. The sphere expands into the ambient so the boundary conditions on the other side are just ambient conditions at a large distance (infinity). I am unsure about how to define the radial velocity of this sphere in cartesian coordinates (how to define individual velocities of each node) and how to create a UDF for the velocities since the radial expansion varies as v = At^b. I tried to simplify this problem as a 1-D moving wall problem in cartesian coordinates but couldn't get realistic results. Any help/guidance/resource is appreciated.
tanishq1402 is offline   Reply With Quote

Reply

Tags
cfd, compressible, fluent, spherical coordinate, udf

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
Modelling an Actuator Disk in FLUENT anonymousbach FLUENT 2 June 10, 2022 02:30
Running UDF with Supercomputer roi247 FLUENT 4 October 15, 2015 14:41
Modelling Moving Boundary in Fluent Felix Tae Main CFD Forum 0 November 8, 2005 21:25
HELP!:CFD modelling using FLUENT in swimming pool Tee Main CFD Forum 0 September 7, 2005 21:48
Need Help on Fluent Modelling Laminar on BluffBody ary Main CFD Forum 1 May 19, 2005 06:59


All times are GMT -4. The time now is 05:33.