{"id":178961,"date":"2023-08-25T12:15:40","date_gmt":"2023-08-25T12:15:40","guid":{"rendered":"\/knowledge\/forums\/topic\/why-does-my-solution-diverge-when-i-apply-the-kinetic-theory\/"},"modified":"2023-08-25T12:15:40","modified_gmt":"2023-08-25T12:15:40","slug":"why-does-my-solution-diverge-when-i-apply-the-kinetic-theory","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/why-does-my-solution-diverge-when-i-apply-the-kinetic-theory\/","title":{"rendered":"Why does my solution diverge when I apply the Kinetic Theory?"},"content":{"rendered":"

To use the Kinetic Theory in obtaining the viscosity and thermal conductivity, you need to define the Lennard-Jones parameters. In Fluent, in the ‘Materials’ of the ‘Properties’, ‘LJ Characteristic Length ‘, set the ‘LJ Energy Parameter’. For obtaining the specific heat by using Kinetic Theory, you will need the value of Degrees of Freedom. Each value is, by selecting the ‘Kinetic Theory’, but some values entered in the input field may not be appropriate. For is it material used in the calculation, you must enter the correct value. This could be a factor in the calculation diverging. By applying the ‘Kinetic Theory’, if the solution is diverging, it is recommended that you re-consider whether the appropriate value has been defined. <\/p>\n

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