[MarcF]

Hi there,

when I try to follow the Tutorial "Constrained Optimal Shape Design of a Fixed Wing", SU2 does not come to a solution.

For the first designs everything seems to run normally, but with the 157th design SU2 exits with "Error 1". An inspection of the log file (find attached) of Design 157 shows that there is an increasing number of non-physical points until it comes to the Error "SU2 has diverged".

Evaluation of the history_project.dat file shows that for about the first five designs drag gets minimized but than kind of a saw tooth profile establishes (pictures for drag and lift attached).

I used Version 4.2 of SU2.
Except for changing OUTPUT_FORMAT to PARAVIEW I used an unmodified inv_ONERAM6_adv.cfg (find attached) file (downloaded on 29.08.2016).
Furthermore I strictly followed the instructions of the Tutorial.
For all other Tutorials SU2 worked quite fine.

Since I´m new to SU2, I can´t figure out why it does not work. So I would appreciate some help.

Thanks in advance,

Marc Frankenbach