Fluent crashing during simulation with error: Cortex received a fatal signal (SEGMENTATION VIOLATION

ammar_ghori23ammar_ghori23 Member Posts: 2

I'm trying to run a steady-state hypersonic flow simulation over a wedge airfoil. After running few iterations Fluent crashes with this error - Cortex received a fatal signal (SEGMENTATION VIOLATION)

I'm running the simulation on a laptop with Intel i5 processors having 2 cores and 4 logical processors & 8 GB RAM. Also, the SSD is having 54GB of free space.

My mesh size is 5mm coarse and 2.5 to 1.5mm fine mesh near walls. The inflation layer has an initial cell height of 0.006mm and no. of layers are 10. I've generated 1.78 million cells.

Model setup - I'm using k-w SST model with free stream mach no. 7 & ambient parameters as p = 1197Pa, T = 226.51K, rho=0.018 kg/m3.

I request to kindly help me out with this issue


Best Answer

  • KremellaKremella Posts: 2,497Admin
    Accepted Answer

    Hello,

    Segmentation faults usually occur when Fluent is attempting to access a memory when it does not exist. Is your simulation might be accessing an invalid memory? Are you using a UDF in your simulation?

    Karthik

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