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

Flow over an elastic mounted cylinder in Ansys fluent

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

LinkBack Thread Tools Search this Thread Display Modes
Old   May 11, 2016, 20:29
Default Flow over an elastic mounted cylinder in Ansys fluent
New Member
Join Date: Mar 2016
Posts: 5
Rep Power: 9
rahilvalani is on a distinguished road
Hi there,

I am trying to simulate vortex induced vibrations using Ansys fluent at Re=100 using the following udf for 6DOF solver:

#include "udf.h"
DEFINE_SDOF_PROPERTIES(viv, prop, dt, time, dtime)
real cg;
real k = 1.578;
cg = DT_CG(dt)[1];
prop[SDOF_MASS] = 1;
prop[SDOF_LOAD_F_Y] = -k*cg;

When I simulate this, it gives me very large lift coefficient(~100-200) and the cylinder also oscillates very rapidly. Can some please help?
rahilvalani 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
Ansys fluid flow fluent missing dave121/ ANSYS 8 February 18, 2021 00:28
Fluent + flow past cylinder at Re=40 m.vegad Main CFD Forum 25 January 9, 2018 01:34
Can you help me with a problem in ansys static structural solver? sourabh.porwal Structural Mechanics 0 March 27, 2016 18:07
Drag force coefficient too high for a flow past a cylinder using komega sst Scabbard OpenFOAM Running, Solving & CFD 37 March 21, 2016 17:16
Free surface flow in Ansys Fluent Tanjina Fluent Multiphase 11 April 16, 2014 12:52

All times are GMT -4. The time now is 19:09.