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

Shock tube simulation

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

LinkBack Thread Tools Search this Thread Display Modes
Old   May 11, 2008, 16:35
Default Shock tube simulation
Posts: n/a

I am trying to run a shock tube simulation on a tube with a 5m driver section; and 10m driven section (with air on both sections). I am running 2D simulations but with only one cell in the y-direction (normal to the shock direction) and symmetric boundary conditions on the upper and lower walls. Both end walls are set to the wall-boundary condition.

The configuration is shown below:

---------*---------------------------- | Driver | Driven | ---------*----------------------------

I am using the following configuration for the solver:

coupled, unsteady implicit solver with energy enabled; 2nd order discretization; node based gradient method; density goes as ideal gas; cp etc remain constant; Courant# = 0.5

The problems are:

1. The shock wave is too shallow (over several grid points)

2. The shock wave moves too fast compared to 1-D calculations (almost twice as fast as expected)

Clearly, I am messing things up pretty bad. Any help/pointers/sample jou files/example problems/example solutions would be much appreciated.

(This is not for any class -- I am trying to figure out the effect of putting a side-chamber in a shock tube)
  Reply With Quote

Old   May 11, 2008, 16:46
Default Re: Shock tube simulation
Posts: n/a
sorry, the picture did not come out right



  Reply With Quote

Old   July 8, 2009, 13:31
Nishant Kumar
Join Date: Jun 2009
Posts: 32
Rep Power: 16
Nishu is on a distinguished road
Hi Harish,

Can you please send me the 1D code for shock tube problem at I need it for my research.

Thanks a lot
Nishu is offline   Reply With Quote

Old   July 29, 2009, 13:52
New Member
Join Date: Jul 2009
Posts: 1
Rep Power: 0
tramber is on a distinguished road
Hi Harish,

I did such a validation a few years ago with Fluent 6.2 or 6.3

I obtained similar results comparing the coupled-implicit (today refered as density based implicit) to the coupled-explicit (previously called Rampant and today refered as density based explicit).

Both matched the exact solution pretty good.

Note that I more than one cell in the y direction.

I can provide you with the msh and jou if you still need it.
tramber is offline   Reply With Quote

Old   August 3, 2012, 22:04
New Member
Ali Jafarizade
Join Date: May 2009
Posts: 22
Rep Power: 17
jafarizade is on a distinguished road
hi tramber
i do really need your mesh and journal files of the shock tube.
is it possible for you to mail me what you have such as mesh file and journal files and etc?
i will be a very good help for me and i do appreciate your help.
my email is
thanks in advance!
jafarizade is offline   Reply With Quote

Old   January 25, 2014, 02:20
New Member
Charisma Joseph
Join Date: Jan 2014
Posts: 2
Rep Power: 0
charisma is on a distinguished road
hey tramber

can you please mail me those files too? the msh file and journal files.
my email is
thank you.
charisma 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
shock tube!!! showwa FLUENT 12 May 20, 2012 19:14
shock tube Shuo Main CFD Forum 5 August 16, 2007 23:54
shock tube tal FLUENT 0 June 23, 2007 21:25
Shock Tube Pooria Sattari Main CFD Forum 5 June 14, 2005 00:55
shock tube anin Main CFD Forum 1 August 4, 2001 22:58

All times are GMT -4. The time now is 20:42.