CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Software User Forums > OpenFOAM > OpenFOAM Pre-Processing

Free surface comes above the hull of the ship

Register Blogs Community New Posts Updated Threads Search

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   September 4, 2014, 01:08
Default Free surface comes above the hull of the ship
  #1
Member
 
Sachin
Join Date: Aug 2014
Location: India
Posts: 84
Rep Power: 12
Sachin m is on a distinguished road
I have been working with a hull in Open foam. Iam using LTSInterfoam for the simulation.I was able to mesh the hull using snappyhexmesh. and was able to simulate the flow.
But when i looked at the result it seems wierd. The free surface comes above the hull. the ship virtually sinks in the sea. I have used similar settings as given in the wigley hull tutorial.
My speed is 15 knots (7.716 m/s).
I have attached the results here:

1) the starting stage. red portion water. blue portion air
2) After 100 iterations.
3) after 12000 iterations.

Now i have completed more than 50000 iterations. still the free surface is above the hull.

Could anyone help me out with this. what could be the possible reasons???

Iam using openFoam 2.10
Attached Images
File Type: jpg starting stage.jpg (53.3 KB, 19 views)
File Type: jpg free surfaceat 100.jpg (40.9 KB, 21 views)
File Type: jpg freesurfaceat 12000.jpg (26.5 KB, 15 views)
Sachin m is offline   Reply With Quote

Reply


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
[snappyHexMesh] Mesh around ship with appropriate free surface refinement Hannes_Kiel OpenFOAM Meshing & Mesh Conversion 46 October 4, 2019 08:28
free surface modelling using VOF sci Main CFD Forum 10 August 29, 2012 08:43
[snappyHexMesh] Layers don't fully surround surface EVBUCF OpenFOAM Meshing & Mesh Conversion 14 August 20, 2012 05:31
Free surface problem: hull mesh questions albertofast OpenFOAM 2 December 15, 2010 20:50
viscous free surface flow past a ship hull lololo Main CFD Forum 0 June 13, 2002 00:02


All times are GMT -4. The time now is 07:51.