|
[Sponsors] |
Laminar simulation using air as a working fluid |
![]() |
|
LinkBack | Thread Tools | Search this Thread | Display Modes |
![]() |
![]() |
#1 |
New Member
Join Date: Nov 2017
Posts: 4
Rep Power: 8 ![]() |
Hello friends,
I am doing three dimensional simulation of heat transfer for flow through uniform micro channel with air as a working fluid. Pressure based solver/steady I have switched on the energy equation.. convergence criteria is 10^-6 SIMPLE algorithm, Pressure-second order Momentum and energy-QUICK but the solution was never converged...please help me if I did any mistake regarding the simulation with air as working fluid....appreciate your help Thanks in advance. ![]() ![]() |
|
![]() |
![]() |
![]() |
![]() |
#2 |
Member
annan
Join Date: Nov 2016
Posts: 72
Rep Power: 9 ![]() |
Dear goli92,
What do you mean by the solution never converged ? did you get any errors ? AMG divergence ? Regards, Annan |
|
![]() |
![]() |
![]() |
![]() |
#3 | |
New Member
Join Date: Nov 2017
Posts: 4
Rep Power: 8 ![]() |
Quote:
No errors but residuals are just oscillating.... for example continuity residual is like from 1e-1 to 9.8e-2 to 1e-1... hope I am clear with my problem...if any clarification needed please let me know...any |
||
![]() |
![]() |
![]() |
![]() |
#4 |
Member
annan
Join Date: Nov 2016
Posts: 72
Rep Power: 9 ![]() |
What about your mesh ? quality and cell size ?
Have you tried running the simulation in unsteady ? |
|
![]() |
![]() |
![]() |
![]() |
#5 |
New Member
Join Date: Nov 2017
Posts: 4
Rep Power: 8 ![]() |
||
![]() |
![]() |
![]() |
|
|
![]() |
||||
Thread | Thread Starter | Forum | Replies | Last Post |
simulate a barrel with fluid inside and air above the fluid | richard_vega | OpenFOAM | 2 | October 7, 2019 08:20 |
Problem with an old Simulation | FrankW | CFX | 3 | February 8, 2016 04:28 |
An error has occurred in cfx5solve: | volo87 | CFX | 5 | June 14, 2013 17:44 |
Simulation of air flow in a chamber | Issa | CFX | 3 | November 23, 2009 17:16 |
air bubble is disappear increasing time using vof | xujjun | CFX | 9 | June 9, 2009 07:59 |