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

Source Term for Pressure-SIMPLE

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

Reply
 
LinkBack Thread Tools Display Modes
Old   February 6, 1999, 00:09
Default Source Term for Pressure-SIMPLE
  #1
R.Sureshkumar
Guest
 
Posts: n/a
Hi How do we add Mass source term in pressure correction equation(SIMPLE). Any insight on this account. Advance Thanx for the efforts. c'u
  Reply With Quote

Old   February 6, 1999, 13:34
Default Re: Source Term for Pressure-SIMPLE
  #2
Anil Shenoy
Guest
 
Posts: n/a
hi,

If you have source term in the continuity equation (if you solving any chemical generation etc.), and convert the continuity equation to an equation for pressure correction. The mass source can be added to mass residual term. see: pg. 125 of Numerical heat tansfer & fluid flow -Patankar.

Anil
  Reply With Quote

Old   February 9, 1999, 20:10
Default Re: Source Term for Pressure-SIMPLE
  #3
R.Sureshkumar
Guest
 
Posts: n/a
Hi Anil Thanx a lot I could solve that, however i face difficulty with adding energy source(heat source). If you/any other can through some light it will be helpful expecting some advice rsk
  Reply With Quote

Old   February 10, 1999, 10:19
Default Re: Source Term for Pressure-SIMPLE
  #4
Anil Shenoy
Guest
 
Posts: n/a
Hi Sureshkumar,

I could like to clarify the following:

(1) Do you want to know how to add a energy source to the energy equation (enthalpy/temperature/internal energy) and couple it with SIMPLE.

or

(1) Do you have any particular energy source term that you are having a problem with??

Could you please clarify this?

Anil
  Reply With Quote

Old   February 11, 1999, 07:17
Default Re: Source Term for Pressure-SIMPLE
  #5
R.Sureshkumar
Guest
 
Posts: n/a
Hi Anil Your first one is correct. I am solving two phase flow (droplets/air). For air am using FV method as S.V.Patankar's book goes. The problem is in a)What term's constitute for source b)where to add them. I am adding it to SC part (i.e source remaining constant.) c)And the source is added only once. Being a steady state pb. is this right. i am right now engaged in some corrective measures after going thro some papers. I wish i have put clearly and would like to thank you a lot. cu rsk
  Reply With Quote

Old   February 23, 1999, 04:42
Default Re: Source Term for Pressure-SIMPLE
  #6
Mo Yun
Guest
 
Posts: n/a
Hi, you'd better write out the governing eqs. that you are going to solve and then check what kind of source terms should be added. It seems that you haven't fully understood what you are going to solve.

  Reply With Quote

Old   February 23, 1999, 05:33
Default Re: Source Term for Pressure-SIMPLE
  #7
R.Sureshkumar
Guest
 
Posts: n/a
Hi Thanx for the reply. The above messages were posted step by step while i where solving the problem.The latest difficulty is Divergence of the solution when i add Energy source in the cells. do you have experience inthis area? for i would like to ask certain specifics. cu
  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
Problem of SOURCE term gradient in UDS wind Fluent UDF and Scheme Programming 5 June 21, 2013 05:39
UDF source term jerome_ FLUENT 2 July 11, 2011 11:55
How to write source term into scalar Fiel JimKnopf OpenFOAM Programming & Development 0 March 23, 2011 06:59
Compiling gmshFoam with OpenFOAM-1.5 BlGene Open Source Meshers: Gmsh, Netgen, CGNS, ... 10 August 6, 2009 04:26
Adding a momentum source term segersson OpenFOAM Running, Solving & CFD 5 March 2, 2006 23:06


All times are GMT -4. The time now is 07:24.