CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > FLUENT

detonation wave simulation

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

Like Tree1Likes
  • 1 Post By Krish

Reply
 
LinkBack Thread Tools Display Modes
Old   September 29, 2008, 17:59
Default detonation wave simulation
  #1
Krish
Guest
 
Posts: n/a
How to simulate detonation wave in a cylindrical duct? please give me some idea. I am new to fluent.

Actually, until now, i made geometry of the cylindrical duct, generated the mesh and checked it in fluent for its validity. the mesh is ok. The inlet condition is 1 bar, 288K and i am suposed to use fuel as Hydrogen and Oxygen. Does fluent has all these chemical reaction details within it? How should i use them?

my CJ temperature is found to be 3600K.

now i need to give the boundary condition, select the solver and test it. please guide me with suitable boundary condition and solvers. I dont see much information pertaining to detonation simulation in fluent.

should i simulate shock wave first and then go for chemistry? please explain how to simulate shock wave too. I tried with boundary condition of inlet=10 bar and exit=1 bar but the cylindrical duct did not show any shock wave propagation during transiet simulation.

please help. thanks in advance
mgogoi likes this.
  Reply With Quote

Old   May 13, 2009, 13:23
Default Pulse detonation
  #2
New Member
 
Radu Cirligeanu
Join Date: May 2009
Posts: 1
Rep Power: 0
Radu is on a distinguished road
Hi Krish
Have you managed to find a solution for your problem yet? I also study the problem of hydrogen detonation in a closed-end cylinder. I have never thought to use Fluent... I now try to elaborate a code, in Fortran, using the method of characteristics, but is a LOT of work. Since I need a solution for the problem relatively quick, I'm thinking to use Fluent. I see that your post is rather old, and maybe you've already found a solution. Could you please contact me if you wish to exchange information about the topic? I would appreciate that. Thank you. Radu
Radu is offline   Reply With Quote

Old   June 8, 2010, 15:01
Default
  #3
New Member
 
Vikram Menon
Join Date: Jun 2010
Posts: 6
Rep Power: 7
vikram is on a distinguished road
Hello Radu & Krish,

I am working on the same thing as well. Maybe we can collaborate our efforts in Fluent to make progress? Please get back to me.

Thanks.

Vikram.
vikram is offline   Reply With Quote

Old   August 4, 2010, 13:04
Default to radu,
  #4
Member
 
ssixr's Avatar
 
sudhir
Join Date: Mar 2009
Location: india
Posts: 55
Rep Power: 8
ssixr is on a distinguished road
hi i am also working in pulse detonation engine area...trying to simulate detonation...can u help me?
thank you
ssixr is offline   Reply With Quote

Old   August 6, 2010, 17:19
Default
  #5
Senior Member
 
Join Date: Apr 2009
Posts: 516
Rep Power: 12
stumpy is on a distinguished road
An explicit (in time) solver is usually the code of choice for detonation. Have you looked at ANSYS AUTODYN?
stumpy is offline   Reply With Quote

Old   August 7, 2010, 01:50
Default
  #6
Member
 
ssixr's Avatar
 
sudhir
Join Date: Mar 2009
Location: india
Posts: 55
Rep Power: 8
ssixr is on a distinguished road
thank u stumpy...i ll chk out autodyn and post my comments..thank u
ssixr is offline   Reply With Quote

Old   October 14, 2010, 02:32
Post detonation
  #7
Member
 
ssixr's Avatar
 
sudhir
Join Date: Mar 2009
Location: india
Posts: 55
Rep Power: 8
ssixr is on a distinguished road
hello stumpy
thanks for your help..for flame propagation transient model should be used.i have another doubt, how to fill a tank(2d model) with a any fluid/premixed mixture.? any help.?
truly
sudhir
ssixr is offline   Reply With Quote

Reply

Thread Tools
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 On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
how to model shock wave generated from detonation? Maddy FLUENT 8 June 24, 2014 19:36
Wave simulation Navin Fogla FLUENT 0 March 6, 2008 10:50
Help needed with wave simulation Gian, S. CFX 0 October 27, 2006 02:59
Need help on Detonation transimission simulation Junhui Liu Main CFD Forum 4 June 5, 2003 12:14
Breaking Wave Simulation Mehdi BEN HAJ CFX 0 February 9, 2002 13:34


All times are GMT -4. The time now is 22:41.