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

Diesel Engine combustion chamber analysis

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

Like Tree2Likes
  • 1 Post By Erny
  • 1 Post By syler3321

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   January 17, 2010, 03:21
Default Diesel Engine combustion chamber analysis
  #1
New Member
 
Sachin Thakre
Join Date: Jun 2009
Location: Sweden
Posts: 25
Rep Power: 16
sachinthakre is on a distinguished road
Send a message via Skype™ to sachinthakre
hello all
I am doing cfd analysis(3D) of diesel engine combustion chamber using Fluent. I have carried out the colds flow simulation. Now I am going for combustion.
Could anybody tell me which combustion model i should use?
Should I use speicies transport or Non-premixed combustion?
Can I get some tips over the volumetric reactions and ignition delay model?
Thanks in advance
sachinthakre is offline   Reply With Quote

Old   January 17, 2010, 22:17
Default
  #2
Senior Member
 
herntan's Avatar
 
YH Tan
Join Date: Mar 2009
Location: Malaysia
Posts: 119
Rep Power: 17
herntan is on a distinguished road
I definately u won't get any answer for this post.
Please study more on Fluent simulation and ur own target before u post it.
AND , post it in detail with picture /video.

anyhow, just a piece of advice. good luck.
__________________
Herntan,

Add Reputation if I am right
herntan is offline   Reply With Quote

Old   January 19, 2010, 11:42
Default
  #3
New Member
 
Sachin Thakre
Join Date: Jun 2009
Location: Sweden
Posts: 25
Rep Power: 16
sachinthakre is on a distinguished road
Send a message via Skype™ to sachinthakre
hi
actually I am doing combustion analysis to study some factors like heat release for the single cylinder diesel engine for which I am having experimental results. I have completed 3D meshing and successfully carried out cold flow simulation for all the strokes with mesh deformation.
Now I am going to carry out combustion. I have gone through fluent user guide. I am getting some error using species transport. Solution is diverging just after diesel injection starts.
if i could get some tips on it.
thanks.
sachinthakre is offline   Reply With Quote

Old   January 26, 2010, 10:35
Default CFD analysis of combustion in Diesel engine using fluent
  #4
New Member
 
Sachin Thakre
Join Date: Jun 2009
Location: Sweden
Posts: 25
Rep Power: 16
sachinthakre is on a distinguished road
Send a message via Skype™ to sachinthakre
hi
actually I am doing combustion analysis to study some factors like heat release for the single cylinder diesel engine for which I am having experimental results. I have completed 3D meshing and successfully carried out cold flow simulation for all the strokes with mesh deformation.
Now I am going to carry out combustion. I have gone through fluent user guide. I am getting some error using species transport. Solution is diverging just after diesel injection starts.
if i could get some tips on it.
thanks in advance
sachinthakre is offline   Reply With Quote

Old   January 27, 2010, 23:08
Default
  #5
Senior Member
 
herntan's Avatar
 
YH Tan
Join Date: Mar 2009
Location: Malaysia
Posts: 119
Rep Power: 17
herntan is on a distinguished road
picture , video ... detail explain... error message screen shot.. ur not really mean to ask question here....so don't give too much hope on getting responce.
__________________
Herntan,

Add Reputation if I am right
herntan is offline   Reply With Quote

Old   January 28, 2010, 02:19
Default
  #6
mas
New Member
 
Mas
Join Date: Jan 2010
Location: Japan
Posts: 24
Rep Power: 16
mas is on a distinguished road
Quote:
Originally Posted by sachinthakre View Post
Solution is diverging just after diesel injection starts.
You should try to balance the mesh size(x), the time step size(dt) from the predicted spray velocity(v). In particular, you should focus on especially near the spray inlet where the velocity is the highest. Use this guideline, dt < x/v.
__________________
<Mas>
mas is offline   Reply With Quote

Old   January 28, 2010, 13:27
Default
  #7
New Member
 
sai ram
Join Date: Sep 2009
Posts: 18
Rep Power: 16
sairam is on a distinguished road
i think u can use non-per mixture because it is specially used for this purpose
sairam is offline   Reply With Quote

Old   June 3, 2011, 08:16
Default combustion analysis reg...
  #8
New Member
 
keerthi
Join Date: Jun 2011
Posts: 4
Rep Power: 14
keerthi is on a distinguished road
sir, i am starting combustion analysis right now so please can u get me some materials to go through.... my mail id is keerthi_gpet@yahoo.co.in
keerthi is offline   Reply With Quote

Old   August 25, 2011, 06:40
Default
  #9
New Member
 
Sergiu Stroe
Join Date: Jun 2010
Posts: 4
Rep Power: 15
Sergiu is on a distinguished road
hello sachinthakre,

Can you show me how you did the simulation for cold flow simulation? I realy need this to my doctorate thesis. Please can you send me your model to stroe_sergiu@yahoo.com.
Thank you very much and good lock,
Sergiu
Sergiu is offline   Reply With Quote

Old   August 25, 2011, 12:02
Default
  #10
New Member
 
Join Date: Aug 2011
Posts: 5
Rep Power: 14
Erny is on a distinguished road
Quote:
Originally Posted by herntan View Post
I definately u won't get any answer for this post.
Please study more on Fluent simulation and ur own target before u post it.
AND , post it in detail with picture /video.

anyhow, just a piece of advice. good luck.
Just out of curiosity where are you supposed to ask then?
tsram90 likes this.
Erny is offline   Reply With Quote

Old   October 10, 2011, 06:27
Default
  #11
Member
 
ralph
Join Date: Jun 2010
Location: Calgary Alberta
Posts: 38
Rep Power: 15
syler3321 is on a distinguished road
Send a message via Skype™ to syler3321
Hern Tan is supposed to ask for a grammar check.. spelling too.. dont be a prick. if u have nothing to contribute keep quiet
tsram90 likes this.
syler3321 is offline   Reply With Quote

Old   November 4, 2011, 14:28
Default need help for meshing in gambit
  #12
Member
 
Boudour
Join Date: Oct 2011
Posts: 34
Rep Power: 14
roukaia is on a distinguished road
i need to simulate an IC engine 2D (lister petter) so i tried to reproduce the same geometry as the tutoriel in-cylinder mesh
now i have no idea about how to construct the mesh (structured and non structured mesh in one face) in the valve
i need the valve layering zones to in structered (quad) because o the layering
have you got any idea how to do it in gambit
roukaia is offline   Reply With Quote

Old   August 13, 2013, 15:14
Default
  #13
New Member
 
Join Date: Aug 2013
Posts: 1
Rep Power: 0
dipak patel is on a distinguished road
hi... i have a confusion about selection of combustion chamber for cfd analysis in ci engine so can you give one of combustion chamber which is recently used in vehicle .........
dipak patel is offline   Reply With Quote

Reply

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
Diesel Engine Combustion arun OpenFOAM Running, Solving & CFD 25 August 11, 2015 10:26
ICEM CFD-- ic engine combustion chamber meshing chetan mundhe CFX 15 July 22, 2012 19:34
analysis of internal combustion engine induction TOM FLUENT 5 August 29, 2011 06:20
diesel engine spray and combustion usker Siemens 6 April 24, 2006 23:36
about analysis on annular combustion chamber aryan CFX 0 January 27, 2006 02:12


All times are GMT -4. The time now is 07:58.