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Fluent crashes with 999999: mpt_accept: error: when using C_VOF command in UDF

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November 10, 2020, 07:29	Fluent crashes with 999999: mpt_accept: error: when using C_VOF command in UDF	#1
Santhosh3735 New Member Santhosh Join Date: Aug 2017 Posts: 7 Rep Power: 8	I am trying to make an UDF for additive manufacturing (material deposition on a flat plate) where there is moving heat source on the substrate and mass source added to the melt pool. For this I need to locate the interfacial cells using this command if(C_VOF(cell,sec_th)>0.05 && C_VOF(cell,sec_th)<1). This command works well for the energy source term. However, if I use the same command for the mass source term fluent crashes with 999999: mpt_accept: error: (Node 0: Process xxxx: Received signal SIGSEGV). Can anyone kindly help me solve this issue?

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fluent - udf, moving heat source, udf c_vof

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