[Nek5000-users] help for Element mesh mismatch

[wangzhicheng]

Hi developers

The problems with cavity flow in previous email has been solved. 
However, I meet another trouble today.
I attached a document  that contain .rea file for the case of  flow past a cylinder. The mesh is transformed  from the format used in code Semtex to Nek5000, by  tool sem2nek with some change.
But when I try to run this case, nek5000 give me errors like this:

****************************************************************************************************************************************************************

 Number of processors:           1
 REAL    wdsize      :           8
 INTEGER wdsize      :           4


  Beginning session:
  /home/wzc/Code/nek5_svn/examples/2Dcylinder/cylinder01.rea                    

 
 timer accuracy:   1.0967255E-06 sec

 read .rea file
 nelgt/nelgv/lelt:       54       54      300
 lx1  /lx2  /lx3 :        8        6        8

 mapping elements to processors
           0          54          54          54          54  NELV
 RANK     0 IEG       1       2       3       4       5       6       7       8
                      9      10      11      12      13      14      15      16
                     17      18      19      20      21      22      23      24
                     25      26      27      28      29      30      31      32
                     33      34      35      36      37      38      39      40
                     41      42      43      44      45      46      47      48
                     49      50      51      52      53      54
 done :: mapping elements to processors
  
           0  objects found
 readat time  3.292083740234375E-003  sec
 done :: read .rea file

 setup domain topology
   Right-handed check complete for      54 elements. OK.
   setvert2d:           8           8           1
   setupds2d:          8          0         69         69        321        807
   gs_setup: 0 unique labels shared
   gs_init time 3.2997E-04 seconds   8        54      3456       321         0
           5  max multiplicity
 done :: setup domain topology
  
 call usrdat
 done :: usrdat
  
 generate geomerty data
 vol_t,vol_v:   134.648547351613        134.648547351613     
 done :: generate geomerty data
  
 call usrdat2
 done :: usrdat2
  
 regenerate geomerty data           1
 vol_t,vol_v:   134.648547351613        134.648547351613     
 done :: regenerate geomerty data           1
  
 verify mesh topology
  -5.00000000000000        10.0000000000000       Xrange
  -5.00000000000000        5.00000000000000       Yrange
   0.00000000000000        0.00000000000000       Zrange
 WARNING1 Element mesh mismatch at:
 i,j,k,ie:    8    2    1        2
 Near X =  0.43169461      0.47521817       0.0000000    , d:   0.0000000     -0.15500086E-02   2.1757104    
  
call exitt: dying ...
  
backtrace(): obtained 8 stack frames.
./nek5000 [0x4d040a]
./nek5000 [0x51f1a6]
./nek5000 [0x42af2d]
./nek5000 [0x403b86]
./nek5000 [0x40334c]
./nek5000 [0x61f8be]
/lib/libc.so.6(__libc_start_main+0xf4) [0x7f8bddd421c4]
./nek5000 [0x403299]
  
total elapsed time         :   0.12290E-01 sec
total solve time incl. I/O :    0.0000     sec
time/timestep              :    0.0000     sec
********************************************************************************************************************************************************************

With my best wishes


Zhicheng


 

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