[Nek5000-users] problem about case turbChannel

nek5000-users at lists.mcs.anl.gov nek5000-users at lists.mcs.anl.gov
Fri Feb 17 05:26:45 CST 2017


What compiler are you using? 
Can you please download the latest master branch of Nek5000 and NekExamples on GitHub and try again.  

 
-----Original message-----
> From:nek5000-users at lists.mcs.anl.gov <nek5000-users at lists.mcs.anl.gov>
> Sent: Friday 17th February 2017 11:34
> To: nek5000-users at lists.mcs.anl.gov
> Subject: Re: [Nek5000-users] problem about case turbChannel
> 
> Hi, Tanmoy
> Thanks! Here are parts of my logfile, and please see the attachment for details. (I didn't change any data for this case)
> Starting time loop ...
>      DT/DTCFL/DTFS/DTINIT   0.200E-01   0.227-314   0.227-314   0.200E-01
> Step      1, t= 2.0000000E-02, DT= 2.0000000E-02, C=  0.521 0.0000E+00 0.0000E+00
> filt amp 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0125 0.0500
> filt trn 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 0.9875 0.9500
>              Solving for fluid
>     1 1.00000E-05         NaN         NaN         NaN       1 Divergence
>     2 1.00000E-05         NaN         NaN         NaN       1 Divergence
>     3 1.00000E-05         NaN         NaN         NaN       1 Divergence
> 
> Best regards!
> Hu
> -----原始邮件-----
> 发件人: nek5000-users at lists.mcs.anl.gov
> 发送时间: 2017年2月14日 星期二
> 收件人: nek5000-users at lists.mcs.anl.gov
> 抄送: 
> 主题: Re: [Nek5000-users] problem about case turbChannel
> 
> Hi Hu,
> 
> Please post a MWE (minimal working example), a logfile / and or a .usr file snippet which your are changing, otherwise it is hard to comment.
> <br clear="all" />Best Regards,
> Tanmoy
> 
> On Mon, Feb 13, 2017 at 6:42 AM, <nek5000-users at lists.mcs.anl.gov <mailto:nek5000-users at lists.mcs.anl.gov>> wrote:
> Hi all,
> When I tried to do the test "turbChannel", I found value NAN appeared in the process, and after a while the pressure solver detect rank deficiency. I tried almost all the
> test case, and found this problem appeared in some other cases. I want to know why and how to accomplish the turbChannel case. Should I change any values in the .usr file?
> 
> Best wishes!
> Hu
> 
> 
> 
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