CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Software User Forums > OpenFOAM > OpenFOAM Running, Solving & CFD

InterDymFoam FloatingObject Modification(Help!)

Register Blogs Community New Posts Updated Threads Search

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   August 1, 2013, 09:57
Default InterDymFoam FloatingObject Modification(Help!)
  #1
New Member
 
Youngkook Kim
Join Date: Jul 2013
Location: Singapore and South Korea
Posts: 20
Rep Power: 12
totalart is on a distinguished road
Hi all,

I'm a beginner of OPENFOAM and trying to learn InterDymFoam modifying FloatingObject. Now I'm trying to set a case that an object is initially in the air and drops to water.

I have changed:
1. topoSetDict : location of box
box (0.35 0.35 0.54) (0.65 0.65 0.76);
2. setFieldsDict : initial free surface is level
box ( -100 -100 -100 ) ( 100 100 0.4 );

Calculation stops at about 0.3s. I've tried to reduce deltaT to 0.0001 but still stops at below. Post-processing results up to 0.2s look okay.
I didn't change much except above and deltaT, hence, writeControl is adjustableRunTime. Please advise what I should try. Thank you!!

Interface Courant Number mean: 0.0034416063622 max: 6.74414777876
Courant Number mean: 0.00989467176837 max: 6.74414777876
deltaT = 9.54914388697e-006
Time = 0.349705
Centre of mass: (0.49998781966 0.50001274756 0.227535688399)
Linear velocity: (-0.000159344840514 0.00016488321201 -0.541114919706)
Angular velocity: (0.000263342477032 -2.71499290814e-005 4.04946967898e-006)
GAMG: Solving for cellDisplacementx, Initial residual = 0.000521751846108, Fina
l residual = 9.10599745783e-006, No Iterations 4
GAMG: Solving for cellDisplacementy, Initial residual = 0.000489321994054, Fina
l residual = 8.72499674845e-006, No Iterations 4
GAMG: Solving for cellDisplacementz, Initial residual = 0.00063944853338, Final
residual = 5.03910294448e-006, No Iterations 5
Execution time for mesh.update() = 1.031 s
time step continuity errors : sum local = 0.000338450048206, global = -1.6928321
7593e-013, cumulative = -0.000389941435316
GAMGPCG: Solving for pcorr, Initial residual = 1, Final residual = 8.2383126360
8e-006, No Iterations 6
time step continuity errors : sum local = 0.00333300621618, global = -3.65868127
703e-009, cumulative = -0.000389945093997
MULES: Solving for alpha1
Phase-1 volume fraction = -1.17557007983e+290 Min(alpha1) = -8.6426155539e+294
Max(alpha1) = 2.58348481221e+294
totalart is offline   Reply With Quote

Reply

Tags
floatingobject, interdymfoam


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
Stability Issue with interDyMFoam / floatingObject tutorial ccmccomb OpenFOAM Running, Solving & CFD 4 April 27, 2023 04:13
Pressure instabilities with interDyMFoam for the floatingObject case nbadano OpenFOAM Running, Solving & CFD 15 October 15, 2021 06:35
problems with interDyMFoam alexm OpenFOAM Running, Solving & CFD 4 March 5, 2015 15:09
Problem with FloatingObject Leech OpenFOAM Running, Solving & CFD 10 March 29, 2012 15:24
error using interDyMFoam with kOmegaSST to simulate sloshing anmartin OpenFOAM Running, Solving & CFD 0 July 20, 2010 13:21


All times are GMT -4. The time now is 02:33.