[Nek5000-users] Prex problem

Thu Apr 24 18:53:38 CDT 2014

Dear Katherine,

Thank you for the reply and sorry for the unclear description in last email.

I tried both actually.  For pretex, somtimes I have to give proper BC type for shown element no. and face index. Yes I can set them up once I checked the element corner list in .rea file according to their numbers. But I hate to say it is rally clumsy esp. when there are tens or even higher numbers of boundary elements to set.

This is why I also tried prex, and then I got the problem I showed in last email. A black window without showing the topology of my mesh looks strange, since there are no X11 compatibility problem (I am using Ubuntu 13.10 & 14.04). Meanwhile, I can show the mesh by opening a .rea file from postx, but you know I cannot set BCs there.

Best regards,

Zhenyu

-----原始邮件-----
发件人: nek5000-users at lists.mcs.anl.gov
发送时间: 2014-04-25 02:47:30 (星期五)
收件人: nek5000-users at lists.mcs.anl.gov
抄送:
主题: Re: [Nek5000-users] Prex problem

Hi,

Are you using pretex or prex?  pretex doesn't have a gui associated with it, so you must use the terminal menu to make changes to your mesh.  If you want the graphical interface, you would want prex

Katherine

On Thu, Apr 24, 2014 at 12:28 AM, <nek5000-users at lists.mcs.anl.gov> wrote:
Dear All,

 I am trying nek5000 under ubuntu. Now I adapted mkmesh from case expansion for my own case, which is a flat plane boundary layer with a slot.

I build one box for the jet slot and 23 boxes for the plane wall around it (mbox in SIZE of genbox.f was changed for it).  Now when I use pretex to merge both 2d mesh together, pretex show no picture for the mesh (but just an empty menubar and a black window, no errors shown) then I cannot assign properly B.C. for the boundaries. 

Could anyone give any hints? Thank you very much in advance.

If you need, I can send the setup files to you.

 Zhenyu Zhang
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