### 15.9.1. Option

The available options are:

- `Automatic`

  Tells the solver to use the option believed to be most appropriate for each fluid, depending on the physical setup. This is the default option.

- `None`

  Disables temperature damping.

- `Temperature Damping`

  Enables temperature relaxation. Two parameters are available for controlling the amount of relaxation applied: Temperature-Damping Limit and Under-Relaxation Factor.

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