# energy imbalance ,Urgent????

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

 January 17, 2007, 09:15 energy imbalance ,Urgent???? #1 Asghari Guest   Posts: n/a Hello all; How can fluent compute energy imbalance in each cell? Thanks in advance for everybody answer me. Asghari

 January 17, 2007, 14:01 Re: energy imbalance ,Urgent???? #2 Ralf Schmidt Guest   Posts: n/a Hi! isn't that the energy residual??? Ralf

 January 19, 2007, 03:57 Re: energy imbalance ,Urgent???? #4 Asghari Guest   Posts: n/a Hello ! I correct energy imbalance in previous message: Energy imbalance = D(rho*E)/DT+[(sigma on cell faces) {rho *U.dA* (E+p/rho)}-(sigma on cell faces) { k *grad(T).dA}]/ cell volume I finded that residual is equal to a_p*phi_P+sigma (a_nb*phi_nb)-b that (a_nb is cell neighbors coefficients ;a_P is cell coefficient and b is source term). It sounds that Energy imbalance= energy residual/cell volume. Is'nt it ? Also, i wrote a UDF for energy imbalance . Would you like see that part of udf which computes energy imbalance ? It is a c file . would you like i send it for you? Energy imbalance is very great in some cell's. Why ?? Please answer me. I am appreciated for any help. Thanx.

 Thread Tools Display Modes Linear Mode

 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 OffTrackbacks are On Pingbacks are On Refbacks are On Forum Rules

 Similar Threads Thread Thread Starter Forum Replies Last Post Joseph CFX 14 April 20, 2010 15:45 seojaho CFX 4 June 15, 2009 16:56 yunhee CFX 6 February 25, 2008 10:56 Asghari FLUENT 0 January 12, 2007 03:22 Coriolius CFX 4 November 5, 2004 23:29

All times are GMT -4. The time now is 16:52.