## 9.7. Laminar Flamelet with PDF Model

The laminar flamelet model solves only two transport equations for a large number of species (low computational cost). It provides information on minor species and radicals (such as CO and OH). As well as accounting for turbulent fluctuations in composition (presumed PDF), it models local extinction at high scalar dissipation rates or shear strain.

The model is only applicable for two-feed systems (fuel and oxidizer), and requires a chemistry library as input. The same pressure level must apply to the whole domain. The model is only for non-premixed systems.

The following topics will be discussed:

- Fluid Models

- Boundary Settings

- Initialization

- Solver Parameters

Note: If you are using the NO model with the Flamelet model, you will need to set up your simulation differently. For details, see NO Model with Flamelet Model.

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