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Showing results 1 to 24 of 24 Search took 0.00 seconds. Search: Posts Made By: bouclette

Forum: OpenFOAM Running, Solving & CFD December 11, 2012, 09:53

Replies: 322 Free Surface Ship Flow Views: 100,335 Posted By bouclette I take it from the log file. I take it from the log file.

Forum: OpenFOAM Running, Solving & CFD December 11, 2012, 04:40

Replies: 322 Free Surface Ship Flow Views: 100,335 Posted By bouclette Hi Angela, I'll try to send you the gnuplot... Hi Angela, I'll try to send you the gnuplot file tonight. Ben

Forum: OpenFOAM Running, Solving & CFD August 16, 2011, 15:18

Replies: 322 Free Surface Ship Flow Views: 100,335 Posted By bouclette Thanks Ralph, Pablo, If I am to go into the... Thanks Ralph, Pablo, If I am to go into the files and modify them, I might just give it a try for OF2.0 don't you think? Regards, Ben

Forum: OpenFOAM Running, Solving & CFD August 16, 2011, 12:20

Replies: 322 Free Surface Ship Flow Views: 100,335 Posted By bouclette Hi Ralph, I've been trying to install OF 1.6... Hi Ralph, I've been trying to install OF 1.6 on my machine but it seems that is is a complicated task with Ubuntu 11.04... Is there a way to have shipFoam working on OF1.7 at all ? Regards,...

Forum: OpenFOAM Running, Solving & CFD August 11, 2011, 14:21

Replies: 322 Free Surface Ship Flow Views: 100,335 Posted By bouclette Hi Ralph, It seems that shipFoam would be... Hi Ralph, It seems that shipFoam would be the answer but, looking at the forums, it only seems to work with OF 1.6-dev, am I correct? Did you get some sensible drag / lift values with this...

Forum: OpenFOAM Running, Solving & CFD August 11, 2011, 04:48

Replies: 322 Free Surface Ship Flow Views: 100,335 Posted By bouclette Bonjour Vincent, I have posted the blockMesh... Bonjour Vincent, I have posted the blockMesh file that has some kind of refinement around the hull a few pages before. Take a look and modify it to suit your case, it should help you to get rid of...

Forum: OpenFOAM Running, Solving & CFD August 9, 2011, 15:22

Replies: 322 Free Surface Ship Flow Views: 100,335 Posted By bouclette Hi Dave, Ralph, The command to fix the mesh... Hi Dave, Ralph, The command to fix the mesh is simply "staticFvMesh" but yes, you need to stop and restart the solver to have it working, plus copy the pointDisplacement files over the latestTime...

Forum: OpenFOAM Running, Solving & CFD August 9, 2011, 06:32

Replies: 322 Free Surface Ship Flow Views: 100,335 Posted By bouclette Hi Ralph, Thanks for the response. I will... Hi Ralph, Thanks for the response. I will increase my domain size when I'll be looking at getting some numbers out of that. I had a look at the navyFoam solver docs and it seems that they have...

Forum: OpenFOAM Running, Solving & CFD August 9, 2011, 06:10

Replies: 322 Free Surface Ship Flow Views: 100,335 Posted By bouclette I am also getting a very sketchy forces output.... I am also getting a very sketchy forces output. Any idea where that could come from? Regards, Ben Edit: I have plotted velocity fields at 0.1s and the velocity gets really high from about...

Forum: OpenFOAM Running, Solving & CFD August 9, 2011, 05:54

Replies: 322 Free Surface Ship Flow Views: 100,335 Posted By bouclette Hi All, I've been playing a bit with the... Hi All, I've been playing a bit with the interDyMFoam solver and, as Dave said, it runs sort of ok for very coarse meshes but gets dodgy when going above 200k cells (in my case at least) ...

Forum: OpenFOAM Running, Solving & CFD August 5, 2011, 11:30

Replies: 322 Free Surface Ship Flow Views: 100,335 Posted By bouclette Hi Dave, I have corrected this after posting... Hi Dave, I have corrected this after posting last night. I was thinking these constraints would lock the motion and not free it... I have also added a lot of damping because case would crash...

Forum: OpenFOAM Running, Solving & CFD August 4, 2011, 15:00

Replies: 322 Free Surface Ship Flow Views: 100,335 Posted By bouclette Ok, I managed to make my case run but, after... Ok, I managed to make my case run but, after 1s, it seems that only sink is "working". It is sinking a lot at the beginning then bounces back up and looks like it will eventually stabilize...

Forum: OpenFOAM Running, Solving & CFD August 4, 2011, 01:37

Replies: 322 Free Surface Ship Flow Views: 100,335 Posted By bouclette UPDATE: I found the reason for that error... UPDATE: I found the reason for that error message: I was missing a library in the controlDict file... Seems to be running ok so far. Hi Dave, Thanks for your post, it made things clearer. I...

Forum: OpenFOAM Running, Solving & CFD August 3, 2011, 14:39

Replies: 322 Free Surface Ship Flow Views: 100,335 Posted By bouclette Hi Dave, Thanks for the response. Indeed sHM... Hi Dave, Thanks for the response. Indeed sHM seems to be a real pain to get it to make clean surface layers... I've been trying to do this for a simple wing and couldn't get it to mesh properly...

Forum: OpenFOAM Running, Solving & CFD August 3, 2011, 08:34

Replies: 322 Free Surface Ship Flow Views: 100,335 Posted By bouclette I'm also posting some shots of the mesh. For... I'm also posting some shots of the mesh. For sure it can be optimized better than this... B.

Forum: OpenFOAM Running, Solving & CFD August 3, 2011, 08:32

Replies: 322 Free Surface Ship Flow Views: 100,335 Posted By bouclette Hi All, I've refined the mesh to about 1.1M... Hi All, I've refined the mesh to about 1.1M cells to see if it was still working and, after some tweaking, it now runs stable without those parasitic waves anymore. Meshing is definitely the most...

Forum: OpenFOAM Running, Solving & CFD August 2, 2011, 09:31

Replies: 322 Free Surface Ship Flow Views: 100,335 Posted By bouclette Hi Ippokratis, I'm running the case until... Hi Ippokratis, I'm running the case until the forces stabilize and if its still fine by then, I will post the files but without the stl because it is way too big. I still haven't tried with...

Forum: OpenFOAM Running, Solving & CFD August 2, 2011, 09:00

Replies: 322 Free Surface Ship Flow Views: 100,335 Posted By bouclette Hi All, So I've made a mesh with the... Hi All, So I've made a mesh with the refinement in blockMesh and only snapping in sHM (+ level1 refinement on hull) and it seems that it has gotten rid of those parasitic waves. There are still...

Forum: OpenFOAM Running, Solving & CFD August 2, 2011, 07:13

Replies: 322 Free Surface Ship Flow Views: 100,335 Posted By bouclette Hi there, Hereś my sHM dict file. I'm... Hi there, Hereś my sHM dict file. I'm trying now using blockMesh to refine everything and only use snapping of sHM to see if it helps... Regards, Ben

Forum: OpenFOAM Running, Solving & CFD August 2, 2011, 05:07

Replies: 322 Free Surface Ship Flow Views: 100,335 Posted By bouclette Hi Pablo, Here are the 2 files plus a pic of... Hi Pablo, Here are the 2 files plus a pic of the latest I get. This run was with interFoam to see if it makes an difference. Doesn't seem to. I will try with more refinement at hull surface to...

Forum: OpenFOAM Running, Solving & CFD August 2, 2011, 04:40

Replies: 322 Free Surface Ship Flow Views: 100,335 Posted By bouclette Hi Vincent, Are you using snappy to do the... Hi Vincent, Are you using snappy to do the meshing? I'm still getting those waves around the hull and in the wake, even with a finer mesh (1.3M cells). My residuals don't go down at all,...

Forum: OpenFOAM Running, Solving & CFD August 1, 2011, 20:02

Replies: 322 Free Surface Ship Flow Views: 100,335 Posted By bouclette Hi Pablo, Dave, Attached is a picture of the... Hi Pablo, Dave, Attached is a picture of the coarse mesh that is refined on the whole domain at level 2 in sHM. Solver was interFoam and the time is 6s so waves just start reaching the outlet...

Forum: OpenFOAM Running, Solving & CFD August 1, 2011, 17:22

Replies: 322 Free Surface Ship Flow Views: 100,335 Posted By bouclette Hi Dave, Thanks for your reply. I have... Hi Dave, Thanks for your reply. I have tried with no local refinement around the hull and coarser mesh (237k cells) and it does get rid of those waves away from the boat but I still have some...

Forum: OpenFOAM Running, Solving & CFD August 1, 2011, 05:04

Replies: 322 Free Surface Ship Flow Views: 100,335 Posted By bouclette Hi All, I'm currently trying to run a simple... Hi All, I'm currently trying to run a simple yacht hull at Fn 0.35 using the Wigley setup in the OF 2.0 tutorials and I'm getting the usual parasitic waves in the refined region of the domain. ...

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