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

How to track location of centre of gravity for a moving object using UDF

Register Blogs Community New Posts Updated Threads Search

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   June 26, 2018, 05:46
Unhappy How to track location of centre of gravity for a moving object using UDF
  #1
New Member
 
Join Date: Jun 2017
Posts: 9
Rep Power: 9
valr is on a distinguished road
Hi

I am trying to calculate terminal velocity for a ball(sphere) when dropped into a tank full of water.

I am using 3ddp, pressure based, dynamic mesh(smoothing and remeshing), laminar, transient solver.

I want to output CG and velocity of this sphere as it moves through the water. But I couldn't find any specific macro to do this in fluent.

Can someone please help me.
valr is offline   Reply With Quote

Old   April 2, 2020, 20:15
Default
  #2
Member
 
Mostafa
Join Date: Sep 2016
Posts: 30
Rep Power: 10
bikooo3878 is on a distinguished road
Quote:
Originally Posted by valr View Post
Hi

I am trying to calculate terminal velocity for a ball(sphere) when dropped into a tank full of water.

I am using 3ddp, pressure based, dynamic mesh(smoothing and remeshing), laminar, transient solver.

I want to output CG and velocity of this sphere as it moves through the water. But I couldn't find any specific macro to do this in fluent.

Can someone please help me.

I know this is quite old, but if anyone is interested, I believe a UDF can easily output the DT_CG (dt)[x]
bikooo3878 is offline   Reply With Quote

Reply

Tags
ansys fluent, fluent, plotting graph, post processing, velocity profile 3d


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
udf for valve closing a pipe using dynamic mesh chem engineer Fluent UDF and Scheme Programming 2 May 13, 2017 10:39
WILLING TO PAY/ FREELANCER REQUIRED / small UDF coding force loads over body / 6DOF acasas CFD Freelancers 1 January 23, 2015 08:26
Errors running allwmake in OpenFOAM141dev with WM_COMPILE_OPTION%3ddebug unoder OpenFOAM Installation 11 January 30, 2008 21:30
udf with moving heat source Ryan FLUENT 0 April 10, 2003 20:13
udf for moving and deforming mesh xie haibo FLUENT 4 October 27, 2002 07:45


All times are GMT -4. The time now is 01:43.