[Nektar-users] Compute velocity gradient during runtime

******************* 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. ******************* Dear All, How can I compute the velocity gradient during runtime? I see a module for FieldConvert but I need to have the gradients during the simulation. Velocity gradients are to be used to calculate the TKE dissipation term. The latter may be used to calculate the Kolmogorov length scale. Is there any filter for this? Or can anyone suggest a workaround? Kind regards syavash