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HiFiLES / HiFiLES-solver

High Fidelity Large Eddy Simulation Solver
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Fatal error 'NaN residual encountered. Exiting' at ../src/output.cpp:1417 #43

Closed popstar0426 closed 9 years ago

popstar0426 commented 9 years ago

Hi:

When I run a 3D case of naca0012, I met a fata error : Fatal error 'NaN residual encountered. Exiting' at ../src/output.cpp:1417. There is somgthing wrong with "norm_type not recognized". I made the mesh by myself. It seems somt thing wrong when I extruded the 2D mesh. I am using gmsh. The 2D case was OK to run except the smaller time step.

Best regards! Yue

mlopez14 commented 9 years ago

A NaN can be caused by too large of a time-step, too large of a Reynolds number, or too coarse of a grid.

When is the "norm_type not recognized" error appearing?

popstar0426 commented 9 years ago

Hi:

I succeeded in running a 2D case (naca0012 airfoil) with the mesh. The time step was 0.0000005. Everything looked OK. Then I extruded the 2D mesh to a 3D mesh. The error appeared. Could you share me a 3D naca0012 mesh? Or could you have a look with my 3D mesh? I used a gmsh.

Best regards!