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

I need help with the discrete adjoint parameters

Register Blogs Community New Posts Updated Threads Search

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   December 16, 2023, 09:40
Default I need help with the discrete adjoint parameters
  #1
New Member
 
giuseppe sammarro
Join Date: Nov 2023
Posts: 2
Rep Power: 0
giupep99 is on a distinguished road
Hi, i'm using for the first time a discrete adjoint simulation, i've seen already all the tutorial and i have a few questions about the parameters that i have to insert on the config file.
1)the first one is relatively to the scale factor:
% Optimization constraint functions with pushing factors (affects its value, not the gradient in the python scripts), separated by semicolons
% ex= (Objective = Value ) * Scale, use '>','<','='
OPT_CONSTRAINT= ( MOMENT_Z < 0.093 ) * 0.001; ( AIRFOIL_THICKNESS > 0.12 ) * 0.001

-What does change if i insert a lower or a higher number?
-The scale factor needs to be the same also for the obj_function? if I insert a different number for example 0.1 for drag and 0.01 for the moment what can I expect?

2)DV_PARAM= ( 1, 0.5 )
what does this one?

3) the adjoint solutions in the folder DESIGN will always do the maximum number of iterations that i set in the config file?


thanks for anyone who will try to explain me those question.
giupep99 is offline   Reply With Quote

Reply


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
Discrete adjoint cannot be run in parallel if variable load actuator disc model used FabianBueeler SU2 Shape Design 1 June 23, 2023 15:56
Solver parameters to solve convergence issue WilliamH SU2 5 February 5, 2021 06:19
RANS discrete adjoint oscillating pgdelaserna SU2 3 August 25, 2019 04:32
Discrete vs Continuous Adjoint solution variable: Scaling/normalization issue? asitav SU2 2 November 21, 2018 19:11
Shape optimization doesn't converge - Adjoint log file JPBLourenco SU2 Shape Design 0 December 11, 2017 08:41


All times are GMT -4. The time now is 01:11.