Hellow gong min, Please use this code in your batch file to convert your results. num=33 FieldConvert -m vorticity compressor.xml conditions3d.xml compressor_${num}.chk ${num}.chk FieldConvert -m C0Projection compressor.xml conditions3d.xml ${num}.chk ${num}s.chk FieldConvert compressor.xml conditions3d.xml ${num}s.chk ${num}s.plt It will convert compressor_33.chk to an appropriate file for post-processing. Note that you must use appropriate mesh and high polynomial order to achieve good-looking results (see figure below) Cheers Mahdi [cid:8ba3d9db-63d8-46df-a059-04921a7a7245] ________________________________ From: nektar-users-bounces@imperial.ac.uk <nektar-users-bounces@imperial.ac.uk> on behalf of gongminjiang@hrbeu.edu.cn <gongminjiang@hrbeu.edu.cn> Sent: 02 June 2021 11:16 To: nektar-users@imperial.ac.uk <nektar-users@imperial.ac.uk> Subject: [Nektar-users] Some problems with post-processing FieldConvert CAUTION: This email originated from outside of the University. Do not click links or open attachments unless you recognise the sender and know the content is safe. This email from gongminjiang@hrbeu.edu.cn 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://eur02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fspam.ic.ac.uk%2FSpamConsole%2FSenders.aspx&data=04%7C01%7Cmahdi.nakhchi%40northumbria.ac.uk%7Cb157a6896d4f455226ae08d929858a2f%7Ce757cfdd1f354457af8f7c9c6b1437e3%7C0%7C0%7C637586476258232777%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C2000&sdata=2Jcr7VzkjWDLI0S9D%2BA3pA%2B0qF3319nxWGeffRWdzbk%3D&reserved=0> to disable email stamping for this address. Hello! I want to generate Q-criterion and vorticity isocontour in Tecplot, and also I use C0Projeciton to smooth data, but the visualization quality is not good. Do I still have some skills to make the isocontour smooth? Best wishes! This message is intended solely for the addressee and may contain confidential and/or legally privileged information. Any use, disclosure or reproduction without the sender's explicit consent is unauthorised and may be unlawful. If you have received this message in error, please notify Northumbria University immediately and permanently delete it. Any views or opinions expressed in this message are solely those of the author and do not necessarily represent those of the University. Northumbria University email is provided by Microsoft Office365 and is hosted within the EEA, although some information may be replicated globally for backup purposes. The University cannot guarantee that this message or any attachment is virus free or has not been intercepted and/or amended.