|
[Sponsors] |
What's the meaning of "scaling factor" in the optimization configure file? |
|
LinkBack | Thread Tools | Search this Thread | Display Modes |
February 2, 2018, 09:19 |
What's the meaning of "scaling factor" in the optimization configure file?
|
#1 |
New Member
Bingfei
Join Date: Nov 2015
Posts: 25
Rep Power: 10 |
Hi all,
I'm trying the ONERA M6 optimization in SU2. When I'm reading the inv_ONERAM6_adv.cfg file. I don't understand the exact meaning of "scaling factor" in the configure file. For example: % Optimization objective function with scaling factor % ex= Objective * Scale OPT_OBJECTIVE= DRAG * 0.1 % % Optimization constraint functions with scaling factors, separated by semicolons % ex= (Objective = Value ) * Scale, use '>','<','=' OPT_CONSTRAINT= (LIFT > 0.2864) * 10.0; (MAX_THICKNESS_SEC1 > 0.0570) * 0.1; (MAX_THICKNESS_SEC2 > 0.0513) * 0.1; (MAX_THICKNESS_SEC3 > 0.0457) * 0.1; (MAX_THICKNESS_SEC4 > 0.0399) * 0.1; (MAX_THICKNESS_SEC5 > 0.0343) * 0.1 % What's the meaning of the value that DRAG, LIFT, MAX_THICKNESS multiply? And same: % FFD_CONTROL_POINT ( 7, Scale | Mark. List | FFD_BoxTag, i_Ind, j_Ind, k_Ind, x_Mov, y_Mov, z_Mov ) What's the exact meaning of the "Scale" here? And what's the difference between these "Scale"? Any hint will be welcome! Thank you! Bingfei |
|
February 24, 2018, 13:29 |
|
#2 |
Super Moderator
Francisco Palacios
Join Date: Jan 2013
Location: Long Beach, CA
Posts: 404
Rep Power: 15 |
The new shape tutorials explain the optimization parameter a little bit better,
https://su2code.github.io/tutorials/home/ Best, Francisco |
|
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
[OpenFOAM.org] Patches to compile OpenFOAM 2.2 on Mac OS X | gschaider | OpenFOAM Installation | 136 | October 10, 2017 17:25 |
[foam-extend.org] problem when installing foam-extend-1.6 | Thomas pan | OpenFOAM Installation | 7 | September 9, 2015 21:53 |
[swak4Foam] Problem installing swak_2.x for OpenFoam-2.4.0 | towanda | OpenFOAM Community Contributions | 6 | September 5, 2015 21:03 |
[OpenFOAM] Annoying issue of automatic "Rescale to Data Range " with paraFoam/paraview 3.12 | keepfit | ParaView | 60 | September 18, 2013 03:23 |
DxFoam reader update | hjasak | OpenFOAM Post-Processing | 69 | April 24, 2008 01:24 |