[1183480]

Hello!

I have a multiphase simulation with an energy model and a moving mesh.

this error occurs only when i activate the energy model, because the eulerian solver and the moving mesh works fine.

I have tried this:

1. improve the quality of the mesh
2. lower the time step

thank you for your comments

Reversed flow on 148 faces of pressure-outlet 14.

Reversed flow on 4 faces of pressure-outlet 15.

Reversed flow on 49 faces of pressure-outlet 14.

Reversed flow on 7 faces of pressure-outlet 15.
Stabilizing mp-x-momentum to enhance linear solver robustness.
Stabilizing mp-x-momentum using GMRES to enhance linear solver robustness.
Stabilizing mp-y-momentum to enhance linear solver robustness.
Stabilizing mp-y-momentum using GMRES to enhance linear solver robustness.
Stabilizing mp-z-momentum to enhance linear solver robustness.
Stabilizing mp-z-momentum using GMRES to enhance linear solver robustness.
Stabilizing temperature to enhance linear solver robustness.
Stabilizing temperature using GMRES to enhance linear solver robustness.
temperature limited to 1.000000e+00 in 290633 cells on zone 7 in domain 2
temperature limited to 1.000000e+00 in 290633 cells on zone 7 in domain 3
temperature limited to 1.000000e+00 in 28292 cells on zone 8 in domain 2
temperature limited to 1.000000e+00 in 28292 cells on zone 8 in domain 3
temperature limited to 1.000000e+00 in 28157 cells on zone 9 in domain 2
temperature limited to 1.000000e+00 in 28157 cells on zone 9 in domain 3
Stabilizing vof-1 to enhance linear solver robustness.
Stabilizing vof-1 using GMRES to enhance linear solver robustness.

Divergence detected in AMG solver: vof-1
turbulent viscosity limited to viscosity ratio of 1.000000e+05 in 346183 cells

Divergence detected in AMG solver: vof-1
Divergence detected in AMG solver: vof-1
Divergence detected in AMG solver: vof-1
Error at Node 0: floating point exception

Error at host: floating point exception

Error at Node 1: floating point exception

Error at Node 2: floating point exception

Error at Node 3: floating point exception

Error: floating point exception
Error Object: #f


I have looked at some of the suggestions that data very out of touch with reality can give this error.

I guess it could be the way I set up my materials as there are 3 of them and in some properties I use polynomial and in others constant but it is not the same for any of the materials.

[CFDKareem]

This is likely from how you defined you material properties. I have seen it in the past that when the properties are defined incorrectly you will get these computational errors across many equations.

For the polynomial equations, make sure you have enough significant figures for each coefficient (at least 6+ significant figures). For all materials make sure you have defined the material properties through the entire range of expected temperatures or other variables. If the property goes outside the range provided it may default to 0 causing numerous errors in the solver. Finally, make sure your units are correct for each material property. Datasheets can often use different units than Fluent.

Also, double check how you are defining the thermal boundary conditions. Incorrect units can lead to multiple orders of magnitude difference in the thermal boundaries. Finally, check how you are initializing the domain and make sure all your boundaries and VOF phases are being intialized correctly.