Define/Models/Species/Autoignition menu item opens the
Autoignition Model panel. See Chapter
19 for details.
Autoignition Model Panel
Autoignition Model panel allows you to set the parameters related to the
Knock Model or the
Ignition Delay Model.
Species Transport is selected in the
Species Model panel, turn on
Reactions. With this model selected, only the
Ignition Delay Model can be enabled.
contains options to disable or enable models.
disables the model.
enables the knock model. With the
Premixed Combustion or
Partially Premixed Combustion models selected, only the
Knock Model can be turned on.
Ignition Delay Model
enables the ignition delay model.
contains two correlation options that exist with each model.
option is used for knock in spark ignition engines. The modeling parameters that are specified in the GUI for this option are the
Octane Number, and
Octane Exponent (Equation
enables generalized correlation described by Equation
19.2-3. It requires the same parameters as in the ignition delay model.
enables Hardenburg correlation, which is used for heavy-duty diesel engines. This option is activated only for the ignition delay model.
contains parameters related to the selected model.
19.2.3 for the details about the parameters in this panel.