Hi Syavash, Are you referring to averaging across the homogeneous (z-th) direction? i.e the Fourier 0-th mode. If so, you can use FieldConvert -m meanmode. Hope this helps Cheers Chi Hin Get Outlook for iOS<https://aka.ms/o0ukef> ________________________________ From: nektar-users-bounces@imperial.ac.uk <nektar-users-bounces@imperial.ac.uk> on behalf of Ehsan Asgari <eh.asgari@gmail.com> Sent: Thursday, August 31, 2023 8:35:19 AM To: nektar-users <nektar-users@imperial.ac.uk> Subject: [Nektar-users] average planes in a quasi 3-D simulation This email from eh.asgari@gmail.com 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. Dear All, How can I average the solutions of planes across the homogenous direction in a Quasi 3-D simulation? Kind regards syavash