HI, all I would like to make a supplementary that for an inner circle (or other curved boundary) the 'radius' in your commend should be a minus value, say, -0.5. ---------------------------------------------------------------- Bolun Xu University of Science and Technology of China Hefei, Anhui, China -----邮件原件----- 发件人: Xu Bolun [mailto:[email protected]] 发送时间: 2016年11月10日 10:12 收件人: '[email protected]' 主题: 答复: Nek5000-users Digest, Vol 93, Issue 6 Hello, Nicolas I read the documentation again carefully and very happy that my problem has been solved. Thank you very much for advice. I would like to share the curve definition parts in my mesh converting commands for a ring below: Curves={4:{'type':'C','depth':4,'circle_center':(0,0), 'radius':1},3:{'type':'C','depth':4,'circle_center':(0,0),'radius':0.5}} For 4 and 3 are outer and inner circle. ---------------------------------------------------------------- Bolun Xu University of Science and Technology of China Hefei, Anhui, China -----邮件原件----- 发件人: [email protected] [mailto:[email protected]] 代表 [email protected] 发送时间: 2016年11月9日 23:27 收件人: [email protected] 主题: Nek5000-users Digest, Vol 93, Issue 6 Send Nek5000-users mailing list submissions to [email protected] To subscribe or unsubscribe via the World Wide Web, visit https://lists.mcs.anl.gov/mailman/listinfo/nek5000-users or, via email, send a message with subject or body 'help' to [email protected] You can reach the person managing the list at [email protected] When replying, please edit your Subject line so it is more specific than "Re: Contents of Nek5000-users digest..." Today's Topics: 1. Re: A problem in Prenek ([email protected]) 2. 2D circular ring mesh converting by mshconvert.py ([email protected]) 3. Re: 2D circular ring mesh converting by mshconvert.py ([email protected]) 4. Re: Read Nek output in Matlab ([email protected]) 5. Name of the variable in userf and userq ([email protected]) ---------------------------------------------------------------------- Message: 1 Date: Tue, 8 Nov 2016 21:32:25 +0000 From: [email protected] To: "[email protected]" <[email protected]> Subject: Re: [Nek5000-users] A problem in Prenek Message-ID: <[email protected]> Content-Type: text/plain; charset="utf-8" Hi Saikat, I think this is what is expected. If we look at postpro.f in nek?s source code (subroutine gen_rea_bc), there are 4 different formats in which the boundary conditions will be written depending on the element count. In your case, since the element count is greater than 1000 but less than 100,000, we expect the format to be: first 4 character spaces for boundary condition, next 5 characters for element number, 1 character for edge/face number depending on 2d/3d and so on. As a result, your boundary condition line shows as: E 30724 2731.00 2.00000 0.00000 0.00000 0.00000 Thanks, Ketan