An error which is received signal SIGSEGV in an udf file

Su M Z · July 28, 2020, 05:58

I’ve written an UDF file for the phase change in multiphase flow. VOF model and species transport were applied. The calculation was well converged in the initial several time steps, but an error occurred when the time step came to a specific value. The error is:
Node 1: Process 19654: Received signal SIGSEGV.
After examination, the UDF file could be well complied and loaded. The initialization of calculation is OK. And there is no gradient of macro parameters appeared in the UDF file.
What is the most possible reason to this problem? I need your help. Thanks a lot!

AlexanderZ · July 29, 2020, 01:12

could be everything: mesh, boundary conditions, UDF, material properties.

you didn't provide any information

July 28, 2020, 05:58	An error which is received signal SIGSEGV in an udf file	#1
Su M Z New Member Sumz Join Date: Jun 2020 Posts: 5 Rep Power: 5	I’ve written an UDF file for the phase change in multiphase flow. VOF model and species transport were applied. The calculation was well converged in the initial several time steps, but an error occurred when the time step came to a specific value. The error is: Node 1: Process 19654: Received signal SIGSEGV. After examination, the UDF file could be well complied and loaded. The initialization of calculation is OK. And there is no gradient of macro parameters appeared in the UDF file. What is the most possible reason to this problem? I need your help. Thanks a lot!

July 29, 2020, 01:12		#2
AlexanderZ Senior Member Alexander Join Date: Apr 2013 Posts: 2,363 Rep Power: 34	could be everything: mesh, boundary conditions, UDF, material properties. you didn't provide any information __________________ best regards ****************************** press LIKE if this message was helpful

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