Hello,

I am trying to model a solar cyclone tower (Article The solar cyclone: A solar chimney for harvesting atmospheric water

) in Fluent. At the moment, I am trying to model a simplified version without the vortex to try and get the simulation of the evaporation/condensation working. To help get me going, I have looked at similar simulations of solar distillers.

I am running into a problem with my setup that I have so far been completely unable to remedy. The console prints:

5 1.0000e+00 2.0316e-01 3.8673e-02 3.8433e-02 1.8664e+29 1.0000e+00 2.2538e+08 1.5620e-01 1.3353e-01 0:19:53 45

Error at Node 3: floating point exception

Error at Node 0: floating point exception

Error at Node 1: floating point exception

Error at Node 2: floating point exception

turbulent viscosity limited to viscosity ratio of 1.000000e+05 in 13594 cells

Stabilizing temperature to enhance linear solver robustness.

Stabilizing temperature using GMRES to enhance linear solver robustness.

Divergence detected in AMG solver: temperature Stabilizing vof-1 to enhance linear solver robustness.

Stabilizing vof-2 to enhance linear solver robustness.

turbulent viscosity limited to viscosity ratio of 1.000000e+05 in 13591 cells

Divergence detected in AMG solver: temperature

Divergence detected in AMG solver: temperature

Divergence detected in AMG solver: temperature

Error at host: floating point exception

===============Message from the Cortex Process================================

Compute processes interrupted. Processing can be resumed.

=============================================================================

Error: floating point exception

Error Object: #f

From what I have been able to find online, this kind of error is usually attributed to improper meshing leading to a divide by zero. However, I have checked the mesh and everything seems fine there.

Has anyone got any suggestions on how I can attempt to troubleshoot this problem.

Thanks.

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