|
[Sponsors] |
![]() |
![]() |
#1 |
New Member
jitukrjain
Join Date: Mar 2009
Posts: 6
Rep Power: 18 ![]() |
![]() |
|
![]() |
![]() |
![]() |
![]() |
#2 |
Super Moderator
Glenn Horrocks
Join Date: Mar 2009
Location: Sydney, Australia
Posts: 17,979
Rep Power: 145 ![]() ![]() ![]() ![]() |
You have not explained why you intend to do the simulation. What results are you looking for? Do you want details of the fracture process? Or just the shock wave which comes out of it? Do you care about the compression process before the rupture? I assume you are talking about a shock tube diaphragm, so are talking about high Ma flows.
|
|
![]() |
![]() |
![]() |
![]() |
#3 |
New Member
jitukrjain
Join Date: Mar 2009
Posts: 6
Rep Power: 18 ![]() |
![]() |
|
![]() |
![]() |
![]() |
![]() |
#4 |
Super Moderator
Glenn Horrocks
Join Date: Mar 2009
Location: Sydney, Australia
Posts: 17,979
Rep Power: 145 ![]() ![]() ![]() ![]() |
Isn't a good starting point simply modelling the impulsive start (ie starting from rest) of the shock tube? That is, it has an initial condition and you suddenly impose a high pressure at one end (ie rupture) and this causes a high speed flow? When you have got this working well and you know how to do it properly then consider the secondary effects caused by the actual rupture process (if that is important at all).
Start simple and build the physics in one step at a time. Forget about the rupture for the moment. |
|
![]() |
![]() |
![]() |
![]() |
#5 |
New Member
jitukrjain
Join Date: Mar 2009
Posts: 6
Rep Power: 18 ![]() |
![]() |
|
![]() |
![]() |
![]() |
![]() |
#6 |
Super Moderator
Glenn Horrocks
Join Date: Mar 2009
Location: Sydney, Australia
Posts: 17,979
Rep Power: 145 ![]() ![]() ![]() ![]() |
OK - so I take it you can model this type of high Ma flow without the bursting? You had not mentioned that before. Obviously you have to be able to model this before you can add the more complex bursting issue.
Due to the large deformations in the bursting process you will need to have remeshing in there to stop inverting elements. Talk to CFX support about some demo examples of how to do this. I have no information about Autodyn of LSDyna - wrong forum. |
|
![]() |
![]() |
![]() |
Thread Tools | Search this Thread |
Display Modes | |
|
|
![]() |
||||
Thread | Thread Starter | Forum | Replies | Last Post |
wmake compiling new solver | mksca | OpenFOAM Programming & Development | 14 | June 22, 2018 06:29 |
openfoam 1.6 on debian etch | romant | OpenFOAM Installation | 9 | May 6, 2010 02:26 |
Problem installing on Ubuntu 9.10 -> 'Cannot open : No such file or directory' | mfiandor | OpenFOAM Installation | 2 | January 25, 2010 09:50 |
DxFoam reader update | hjasak | OpenFOAM Post-Processing | 69 | April 24, 2008 01:24 |
OpenFOAM with IBM AIX | matthias | OpenFOAM Installation | 20 | March 25, 2008 02:36 |