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

Problem in discretising the governing equation.

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

Reply
 
LinkBack Thread Tools Display Modes
Old   September 3, 2013, 11:19
Question Problem in discretising the governing equation.
  #1
New Member
 
Sahil Kala
Join Date: Sep 2013
Location: India
Posts: 1
Rep Power: 0
sahilkala50 is on a distinguished road
Hello all,

I am new to CFD coding and have started with a relatively simple problem statement of "Incompressible flow of a viscous fluid through a pipe". But this simple problem too seems to be turning difficult for me. I have problems in the following areas-

1. I am not able to decide the discretisation scheme to be used for the space discretisation and for discretising the equation.
2. I am referring the book "Computational Fluid Dynamics by J. Blazek" but even after reading it i am not able to formulate a good algorithm for solving the problem.
3. It would be very helpful for me if you can tell me the guidelines one must follow before starting to write the code or create the algo for a particular problem.

Thank you in advance. :-)
sahilkala50 is offline   Reply With Quote

Old   September 4, 2013, 03:30
Default
  #2
Senior Member
 
Join Date: Dec 2011
Location: Madrid, Spain
Posts: 133
Rep Power: 6
michujo is on a distinguished road
Hi. This is just my opinion but I'd have a look at the book by Versteeg & Malalasekera.

Cheers,
Michujo.
michujo is offline   Reply With Quote

Old   September 4, 2013, 05:45
Default
  #3
Senior Member
 
duri
Join Date: May 2010
Posts: 130
Rep Power: 7
duri is on a distinguished road
Quote:
Originally Posted by sahilkala50 View Post
Hello all,
"Incompressible flow of a viscous fluid through a pipe"

I am referring the book "Computational Fluid Dynamics by J. Blazek" but even after reading it i am not able to formulate a good algorithm for solving the problem.
Blazek doen't explain pressure based algorithms which is suitable for incompressible flow. There are pressure based algorithms available such as SIMPLE, PISO etc for incompressible flows. Refer patankar's book.
duri is offline   Reply With Quote

Reply

Tags
coding skills.., discretisation, equations, incompressible flows

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
problem about adding another equation of state yhaomin2007 OpenFOAM 4 May 16, 2012 04:36
Problem with a leapfrog scheme for wave equation Shiranui Main CFD Forum 0 June 22, 2010 09:19
Coupled solver energy equation problem lucioantonio FLUENT 0 April 3, 2009 10:21
governing equation of sliding mesh torn FLUENT 1 August 10, 2006 03:34
Energy equation convergence problem Reza Main CFD Forum 0 August 27, 2003 13:09


All times are GMT -4. The time now is 11:33.