|
[Sponsors] |
No-error UDF for wall heat generation rate but no heat is exchanged?!? |
![]() |
|
LinkBack | Thread Tools | Search this Thread | Display Modes |
![]() |
![]() |
#1 |
New Member
Join Date: Apr 2017
Posts: 7
Rep Power: 9 ![]() |
Hi everyone I wrote an UDF for wall heat generation rate in this model
Cattura.PNG For the heat generation rate the UDF is: #include "udf.h" DEFINE_PROFILE(wallheatgenerate,thread,i) { face_t f; real t = CURRENT_TIME ; real source = 4.1e+06*t; begin_f_loop(f,thread) { F_PROFILE(f,thread,i) = source; } end_f_loop(f,thread) } The UDF is interpreted correctly,and then is been hooked in the wall generation rate of the small sphere inside the inner cylinder. The problem is When I calculate the solution: I got a total heat transfer rate for the wall-shpere of -1.43e-06 like no heat is been generated,instead I put a sorce with a big value (4.1e+06 !!!!). Anyone knows where the problem is??? Thank you very much |
|
![]() |
![]() |
![]() |
|
|
![]() |
||||
Thread | Thread Starter | Forum | Replies | Last Post |
Total heat transf. rate vs Total surface heat flux | Renato Sousa | FLUENT | 1 | April 14, 2020 03:27 |
heat generation rate in the wall boundary conditions, what this? | serguei | Fluent Multiphase | 3 | September 10, 2015 16:24 |
Heat Generation rate in W/m³ | ashghan | OpenFOAM Programming & Development | 0 | June 27, 2014 05:42 |
Heat rate in fluent | Firas | FLUENT | 0 | July 13, 2013 07:04 |
Troubles with heat release rate | Xavier Ponticq | CFX | 4 | September 12, 2012 18:49 |