Cortex received a fatal signal (SEGMENTATION VIOLATION) when using solar ray tracing

qj207 · May 22, 2021, 14:33

Hi, everyone!

when I turn on the solar ray tracing model and initialize my model, there will be a message saying: 'Node 999999: Process 15040: Received signal SIGSEGV', and fluent will close by itself automatically.

Meanwhile, I found a cortexerror.log file, which says:
Error [cortex] [time 5/23/21 2:6:5] Cortex received a fatal signal (SEGMENTATION VIOLATION).

My model runs OK when I turn off the solar ray tracing model...

Could anyone help? Thank you so much in advance!

I do not have any UDFs.

qj207 · May 22, 2021, 15:20

In addition to the post, I found that the problem is in the boundary condition.

I was trying to model a double pane thermotropic glazing (the absorptivity and transmitivity of each layer of glass vary with temperature). I set the front and back glass as 'thin wall', and in the boundary condition - radiation - solar boundary condition, I try to vary the absorptivity and transmitivity using 'expression'. The expression is as follows:

IF(StaticTemperature<301.15[K],0.26,0.37)

And the problem occurs....I also tried IF(Temperaturewall<301.15[K],0.26,0.37) and IF(Temperaturewall(thin)<301.15[K],0.26,0.37)

I found that If the absorptivity and transmitivity are constant, the model runs perfectly.

Could anyone help please? Thank you so much!!!

May 22, 2021, 14:33	Cortex received a fatal signal (SEGMENTATION VIOLATION) when using solar ray tracing	#1
qj207 New Member Q JIN Join Date: May 2021 Posts: 2 Rep Power: 0	Hi, everyone! when I turn on the solar ray tracing model and initialize my model, there will be a message saying: 'Node 999999: Process 15040: Received signal SIGSEGV', and fluent will close by itself automatically. Meanwhile, I found a cortexerror.log file, which says: Error [cortex] [time 5/23/21 2:6:5] Cortex received a fatal signal (SEGMENTATION VIOLATION). My model runs OK when I turn off the solar ray tracing model... Could anyone help? Thank you so much in advance! I do not have any UDFs.

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May 22, 2021, 15:20		#2
qj207 New Member Q JIN Join Date: May 2021 Posts: 2 Rep Power: 0	In addition to the post, I found that the problem is in the boundary condition. I was trying to model a double pane thermotropic glazing (the absorptivity and transmitivity of each layer of glass vary with temperature). I set the front and back glass as 'thin wall', and in the boundary condition - radiation - solar boundary condition, I try to vary the absorptivity and transmitivity using 'expression'. The expression is as follows: IF(StaticTemperature<301.15[K],0.26,0.37) And the problem occurs....I also tried IF(Temperaturewall<301.15[K],0.26,0.37) and IF(Temperaturewall(thin)<301.15[K],0.26,0.37) I found that If the absorptivity and transmitivity are constant, the model runs perfectly. Could anyone help please? Thank you so much!!!