CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Software User Forums > SU2 > SU2 Shape Design

Problem with restart of unsteady flows using shape_optimization.py

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   January 30, 2020, 15:13
Default Problem with restart of unsteady flows using shape_optimization.py
  #1
New Member
 
Eduardo de Oliveira Carvalho
Join Date: Mar 2018
Location: São José dos Campos - SP. Brazil
Posts: 15
Rep Power: 8
Eduardo Carvalho is on a distinguished road
Hi all,

I'm trying to optimize bluff bodies in unsteady flows at SU2 v6.2.0, and I'm having problems using previous data as restart parameters.

I already tested the restart solution for steady flows optimization and it worked fine. When I implemented it with dual time-stepping, the script ignores the restart command and starts using values from freestream.

It seems like the script has one kind of "fail-safe" to ignores the "RESTART_SOL=YES" command when it doesn't find the "solution_flow.dat". So I tried using a time step solution from a previous simulation, the script doesn't neglect the restart command, but asks for numbered solutions (e.g. solution_flow_00000.dat, solution_flow_00001.dat, solution_flow_00002.dat, ...).

I tried again, this time adding the numbered solutions to the working directory, but again the script stops soon after ending the direct simulation. The log indicates that this occurs because of an index error of the "history_direct.csv".

In short, I'm not finding what are the necessary files and configurations to restart this unsteady shape optimization.

I would like to know if someone can explain how to solve this problem.

Thank you for your attention.

Eduardo Carvalho
Eduardo Carvalho is offline   Reply With Quote

Reply

Tags
restart problem, shape optimization, unsteady flow

Thread Tools Search this Thread
Search this Thread:

Advanced Search
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 Off
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Under Relaxation Factors(URF) in unsteady problem Maxmum FLUENT 0 August 14, 2010 19:00
SOS: About VOF-Dynamic mesh unsteady problem whpsoft FLUENT 4 May 9, 2006 20:26
Newbie Unsteady Problem Anthony FLUENT 7 March 18, 2006 13:39
unsteady state problem prasad FLUENT 0 April 4, 2002 23:44
Question concerning about unsteady problem.... ghlee Main CFD Forum 6 October 2, 1998 06:36


All times are GMT -4. The time now is 00:51.