Segmentation fault using non-conformgrid interface

Anindya

I try to join 2 nonconformal interfaces using tmerge. I open up the merged case file in fluent and set the grid interface. As such 2 walls (boundary zones) are created (say wall-4 and wall-5). I change the boundary condition of one of the walls (wall-5) to say pressure. But the following error message shows up when I try to run it. The only time when Fluent runs ok is when I keep both of them as walls. Could someone please let me know what the problem might be. This happens with 6.2 but never happened with 6.1 version of fluent.

Thanks for your help. Anindya

iter continuity x-velocity y-velocity z-velocity k epsilon time/iter

reversed flow in 115 faces on pressure-inlet 5.

================================================== ============================ Stack backtrace generated for process id 4570 on signal 1 : /usr/local/Fluent.Inc/fluent6.2.16/lnx86/3d/fluent.6.2.16[0x863cbff] Please include this information with any bug report you file on this issue! ================================================== ============================

/usr/local/Fluent.Inc/fluent6.2.16/lnx86/3d/fluent.6.2.16[0x863ca92] /lib/i686/libpthread.so.0[0x94a097] /lib/i686/libc.so.6[0xc5f898] /usr/local/Fluent.Inc/fluent6.2.16/lnx86/3d/fluent.6.2.16(Flow_Iterate+0x298)[0x814a5f8] /usr/local/Fluent.Inc/fluent6.2.16/lnx86/3d/fluent.6.2.16[0x81804c6] /usr/local/Fluent.Inc/fluent6.2.16/lnx86/3d/fluent.6.2.16(eval+0xb6f)[0x86694b6] /usr/local/Fluent.Inc/fluent6.2.16/lnx86/3d/fluent.6.2.16(eval+0xb6f)[0x86694b6] /usr/local/Fluent.Inc/fluent6.2.16/lnx86/3d/fluent.6.2.16(eval+0xd4a)[0x8669691] /usr/local/Fluent.Inc/fluent6.2.16/lnx86/3d/fluent.6.2.16(eval+0xf0b)[0x8669852] /usr/local/Fluent.Inc/fluent6.2.16/lnx86/3d/fluent.6.2.16[0x8669aca] /usr/local/Fluent.Inc/fluent6.2.16/lnx86/3d/fluent.6.2.16(eval_errprotect+0x41)[0x8669b7b] /usr/local/Fluent.Inc/fluent6.2.16/lnx86/3d/fluent.6.2.16(eval+0xb6f)[0x86694b6] /usr/local/Fluent.Inc/fluent6.2.16/lnx86/3d/fluent.6.2.16(eval+0x2f3)[0x8668c3a] /usr/local/Fluent.Inc/fluent6.2.16/lnx86/3d/fluent.6.2.16(eval+0x102a)[0x8669971] /usr/local/Fluent.Inc/fluent6.2.16/lnx86/3d/fluent.6.2.16(eval+0xf0b)[0x8669852]

Error: fluent.6.2.16 received a fatal signal (SEGMENTATION VIOLATION). Error Object: #f