******************* This email originates from outside Imperial. Do not click on links and attachments unless you recognise the sender. If you trust the sender, add them to your safe senders list https://spam.ic.ac.uk/SpamConsole/Senders.aspx to disable email stamping for this address. ******************* Hello Nektar++ community, I recently have been running an adjoint stability simulation and am interested in the vortex shedding mode.
From the Strouhal number found in the literature I know the eigenmode of interest is the one highlighted below with a magnitude of 0.97 and a frequency of 0.731.
[image: image.png][image: image.png] I have tried using a Krylov space of 40 and instructing Nektar to wait for the 20 modes with the highest magnitude to converge but I have no luck in getting the specific mode of interest to converge. I was wondering whether there was some way I could narrow down the convergence criteria so the specific mode I need will converge, rather than these other 20 modes I’m getting. I have tried to also converge modes by the highest imaginary part but I can’t seem to get the specific mode I need. Thank you, Matt Duran PhD student University of Central Florida
