I am working on natural convection heat transfer in nano fluids flowing inside vertical annulus using Ansys FLUENT 14.0. When i use UDF for viscosity as function of  temperature, output results are correct. But When i use UDF for thermal conductivity as function of viscosity and  temperature, divergence detected in AMG solver. How this problem can be rectified?

More Suhail Ahmad khan's questions See All
Similar questions and discussions